|
| |
Collecting and transporting questions, HI
7/26/08
Aloha Mr. Fenner and Crew,
<Howsit? Am over in Kailua presently>
My name is Tim and I am the overall manager for a company here in Hawaii (the
island of Oahu). We have been operating for just over 2 and a half years here.
We currently service major public and private aquariums only (selling no
wholesale or retail stores). We initially attempted a venture into the retail
market when we opened, but had several issues.
<A very tough "boat to row">
Probably the largest issue we had was the lack knowledge. We obtained some of
our systems operating knowledge thru local wholesales here but quickly found
that what acceptable to them was not to us. In particular the death loss during
collecting and transportation to holding facilities.
<Mmm, can be greatly reduced, with not too much cost...>
We reached out to people who we thought could assist us in operating in a
ethical manner, marine biologist, curators and veterinarians across the USA.
We took their advice very seriously and invested heavily to both increase the
quality of life for the fish we handle and to decrease the initial death loss
that seemed to be the operating norm here in Hawaii and in the fish trade
industry general.
<I beg to differ Tim... I am totally familiar with several outfits as
collectors, transhippers, wholesalers, jobbers... that do very well with low
mortality (generally, not always)... even with Hawaiian livestock>
The more people I speak with the greater knowledge I can obtain regarding the
best manner in which to operate. I have found varying options between many
curators and biologist.
<The BEST folks to talk with are the "A" players in our TRADE. Most curators,
biologists know exceedingly little re practical husbandry matters. They're not
"in that business">
I also realize the value knowledge gained from long term experiences. It is in
this light that I would like that I like to get your thoughts on some topics.
1) The collection, transportation and initial quarantining of saltwater fish.
<A big topic... covered on WWM. Can you find these articles, FAQs files through
the search tool?>
2) Diseases prevalent of fish coming from Hawaii's waters.
<Mostly Crypt... a few times of each year Amyloodinium as well... some species
have fluke issues from some islands, collection areas at times... some other
"various protozoans"... Of course the turbellarian Paravortex on Yellows
(Tangs)... All covered as well. Mostly a matter of adopting and strictly
adhering to pH adjusted freshwater (and likely formalin) dips/baths, with
aeration... the use of ozone in holding... perhaps copper>
3) The mixing of fish coming from the Pacific regions of the world
<Mmm, not a good idea... better to have/keep these in separate/sub-divided
holding system/s... and keep ALL GEAR entirely separate per system>
4) Other possible causes (other than cyanide) issues such as anorexic fish.
<... how much time do you have?>
I have a great deal of knowledge regarding the issues that affect the collection
industry here in Hawaii and would gladly pass this information on to you as
well.
<Let's see... maybe a series of articles... to be run in pet-fish magazines
(unfortunately there never has been a specialty ornamental aquatics industry
publication)... detailing input on these topics. I will gladly either help you
by editing, offering photos, aid your making submissions of this work if you'd
like>
I like to thank you for your consideration and would enjoy the opportunity to
pick your brain. I have also attached a power point presentation to give you an
idea as to our current level of operations.
Please feel free to call me or email me when you have the time.
Mahalo,
Tim Imwold
Dive Master
<Let's keep chatting Tim. Bob Fenner, mauka of Kona currently>
<<Further corr. taken off-line. RMF>>
Quick question about a local
caught fish
Ich, Local Caught Fish, Returning to Ocean (Please do NOT) 4/24/08
Hello again WWM Crew, hope your having a good day.
<Yes thanks.>
Thank you for all your previous help. Today I got a question for you
that I would just like some verification with. Awhile ago I had a tank
come down with Ich, you probably don't remember but I don't need to get
into the details. Anyway, I left the tank fallow for 6 weeks and then
placed a single Golden Headed Sleeper Goby in the tank. After a few
weeks of timidity, he became more outgoing during the day and now no
longer runs to his hideaway whenever you’re looking at him up close. I
feed him with New Life Spectrum pellets by sprinkling them onto the sand
in front of his hideaway, he usually comes out and picks em up (I never
see any in the tank not eaten). Occasionally I'll feed him some frozen
brine as a treat.
<Good>
So he's been in the tank for at least 2 months by himself with some
inverts (all added before his entry) and has never shown any sign of
disease or unusual behavior. However, 3 weeks ago I placed in there a
Red-Lipped Blenny who was getting too large for his previous home (about
6 inches). I figured he'd be a good companion and although they was some
initial showing off by the Sleeper, there has never been any fighting.
However, he's come down with a very very serious case of Ich. I have
never seen the Sleeper with a spot, or any flashing behavior, and his
breathing is always very calm. The blenny is going nuts, and I am going
to return him to the ocean where he came from as soon as possible.
<Please do NOT do this, returning fish to the wild after being exposed
to exotic disease is very very bad, especially when it is know to be
sick. Can be potentially extremely dangerous to the natural ecosystem.
Once a fish comes in contact with anything not from its natural
environment it cannot be safely returned to the wild. I can not stress
enough how bad, and possibly illegal, this is.>
My question is, is it possible the Sleeper is immune to Ich (or
resistant) from previous exposure at a store, exc...or is he a carrier?
<Probably has some degree of acquired immunity, should be considered a
"carrier" here.>
I wouldn't think he was a carrier because I've had him in three
different tanks which are all still Ich free several months later. I
would assume rather that the Cysts were still present on the Rock even
after the 6 week fallow period.
<Probably was never completely cured and then reinfected the tank, or
the blenny was infected and then got really sick with the stress of the
new tank.>
Maybe I should have waited longer then 6 weeks....I guess my questions
are:
Will returning the Blenny to the Ocean ensure his survival?
<No, almost certainly doom it and potentially other fish it comes in
contact with, better to put it down than place it back into the ocean.>
I am acting under the assumption that the large water volume will allow
him to shed the parasites without their return.
<More likely will be quickly eaten and potentially infect the
environment with exotic pathogens, BAD!>
I've had him for over 3 years and I hate losing any fish which I have
collected (I've only lost a couple over the last decade). I'd rather
return him then treat him because I feel it's time for him to go back
(an advantage of collecting fish locally).
<Not an advantage, once a fish hits you tank it cannot be returned
unless all live rock, sand, and other livestock have come from the same
area, and never been to a fish store, had equipment used in a non-native
tank, or any situation when contamination can occur, otherwise the
results are potentially disastrous.>
Also, since the Sleeper goby does not appear to be affected will I have
to remove him and treat him?
<Not necessarily, its immunity will protect it for some time.>
I really do not want to subject him to a chemical regimen if it is not
necessary as he's adapted very well to his new home. I must admit,
having a sleeper goby alone in a tank is quite cool, he's obviously much
more comfortable then he was in other tanks (with other fish).
<Yes>
Thanks in advance again and have a great day.
Cory, Miami.
<You too.>
<Chris>
Re: Quick question about a local
caught fish
Re: Ich, Local Caught Fish, Returning to Ocean (Please do NOT) 4/25/08
Wow, fast reply.
<Up a little late last night.>
Alright Ill treat the blenny.
<Good>
Whenever I've returned fish in the past they have always been in "Ocean"
Tanks meaning only recently have I started mixing store bought fish with
wild caught fish.
<Ah, as long as the "ocean" tanks are kept separate from the other
tanks, and separate equipment is used to avoid cross-contamination, then
returning them to the wild does not represent a problem.>
Usually when I have tanks like that I don't mix anything from a store
with anything that I catch, including rocks or inverts. But that's too
bad, he's really getting too big for a tank. I don't think the store
will take him (after treatment). No reason to put him down though. He'll
survive. Thanks for your help.
Cory, Miami
<Perhaps another local fish keeper has room for him?>
<Chris> |
The Call of The Wild...(The Ethics of
Collecting Your Own Specimens) 7/2/07
Hello everyone!
<Hey there! Scott F. in today!>
Let me first tell you that we have been reading and loving your web site for
several years. We have learned SO much and managed to "re-identify" many items
we've purchased from our LFS. Thank you so much for allowing the average
hobbyist access to your vast knowledge of this very rewarding hobby. I have been
able to locate practically EVERYTHING I have ever needed to know on your site.
<I know what you mean! I found a really great recipe for meat loaf the other
day, and a step-by-step guide to mastering the yoyo, right here on the WWM site!
Wow! In all seriousness- thanks for the kind words. WWM is one of the best sites
of its kind on the 'net! There are a lot of really talented people here who put
their best into this site each and every day. Glad you enjoy it as much as we
enjoy bringing it to you!>
Having said that...Today, I am unable to locate the answer to my question. We
are lucky enough to live in a coastal community just South of Sarasota FL. Our
neighborhood sits next to the Gulf of Mexico. (Yes, it's heavenly...until
hurricane season kicks in!)
<Yup!>
We find little crabs and such in abundance on our beach (small sand sifting
crabs and coquina clams). We don't like to purchase items for our reef that come
from the wild. We'd much rather purchase aquacultured frags and items.
<I share your views!>
Would bringing home a few coquina's have any impact on our neighborhood beach?
<Well, you asked...In my opinion, I would really avoid taking anything from the
neighborhood beach. I remember vividly one of my biology professors in college
advising us to "take nothing but pictures" and to "leave nothing but footprints"
on our local beaches in SoCal.) Sure, a few crabs may not seem to be a lot of
impact, but if enough people take just a few, the next thing you know, there
could be significant issues down the line, not only for the population of the
animals that you are collecting, but to other animals that may depend on them
for food or other services. Not to mention the fact that you should ALWAYS check
with the local authorities concerning the legality of collecting wildlife in
your area. Permits/licenses may be required.>
We would like to know if you can tell us a little about the possible perils of
bringing a little of our beach into our reef tank.
Here are our specs:
55 gal show size tank
Power Comp lights:
130 watts of actinic 03
130 watts of 50/50 actinic 03 10,000K
130 watts of 10,000k
approx. 4" live sand bed
We've lost track of how many pounds of rock - maybe 75 lbs?
2 - 3 Stripe Damsels
1 Percula Clown
assorted Zoos and Mushrooms
2 small Acropora frags
Pipe Organ
1 med size sand sifting star
crabs, snails
1 big fat Mexican Turbo snail
Thanks very much,
Amy G
<Well, Amy- besides the potential environmental impact and possible legal
ramifications of collecting local wildlife, their introduction into your
aquarium could present some problems, specifically, the introduction of possible
parasites and diseases. If you do end up collecting specimens for your aquarium,
careful and mandatory quarantine is absolutely essential, and acclimation to
your aquarium must be done carefully. You certainly sounds like a conscientious
aquarist, so I'm sure that you'll do all the necessary research regarding the
viability of this venture, and that you'll take the right steps to assure that
the transition to captive life is a smooth one for the animals that you intend
to collect.>
Re: Corals as Carry-On? - 04/05/07
Hi
<<Hello Jorge>>
I finally heard back from the TSA on Carrying Live coral as Carry-on. The
answer was pretty Vague. See Below:
Thank you for your e-mail.
The Transportation Security Administration's current security screening
procedures require all carry-on luggage and accessible property be screened
before passengers take them onboard an aircraft. Regardless of whether an item
is on the prohibited or permitted items list, the Transportation Security
Officers (TSO's) have discretion to prohibit an individual from carrying an item
through the screening checkpoint or onboard an aircraft if the item poses a
security threat. Therefore, TSA security screening personnel make the final
decision on whether to permit items like a live piece of coral into the sterile
area of the airport. Should you need additional assistance, feel free to
contact us at toll free 866-289-9673. Please visit our website at www.tsa.gov
for additional information about TSA. We continue to add new information and
encourage you to check the website frequently for updated information. We hope
this information is helpful.
TSA Contact Center
<<Mmm, so it would appear from this, the possibility of you carrying this coral
aboard the aircraft is a matter of pure chance. Perhaps if you post this
question on the reef message forums (RC/reefs.org) you can find some folks who
have tried this recently and get a better feel for how airport security is
handling this situation. Regards, EricR>>
Getting the Last Fish Out, Light Shock 2/28/07
Hi Crew,
<Hi Tom! Mich here.>
I have the unpleasant task of removing all the fish from my reef tank to treat
for a Crypt infestation.
<I'm sorry for your trouble.>
The latest addition, and only recent one, was a Mandarin that I did QT but
obviously not well enough because a week later some of the others are showing
Crypt. Here's a list of the fish we have in the 135G reef display:
Purple Tang
Hippo Tang
Percula Pair
Flame Angel
Royal Gramma
Yellow Watchman Goby
Mandarin
The Tangs were easy to trap, and I think I'll get the Clowns, Gramma, and
eventually the Goby. I'm having doubts about ever trapping the Angel and
Mandarin, and nets are useless. This reef tank is now well established with a
lot of SPS coral that has fused rocks together, and just can't be broken down
without doing damage...but maybe it will have to come to that. Since I'm going
to have to get every fish out of the tank, do you have any advice or unusual
tactics for catching them?
I hate to even ask this dumb question, but as an extreme measure is there any
way to stun these last fish just enough to help capture them (e.g. cold, heat,
anything?) without causing long term problems for the fish or the coral? I
suspect the answer is "no", but in the past I've received Liveaquaria fish
shipments where the bag water was down to about 60 degrees, and the fish were
moving pretty slowly. I sure don't want to harm the fish, but I don't want to
see them die of Crypt anyway, and slow down the fallow process just because I
can't get them out.
<One method that I have heard that you might try is turning the lights off in
the middle of the day when they are normally on. Allow the lights to stay off
for a period of time gather you nets, catch containers etc. and turn the lights
back on. This can induce a shock like state which may allow you to capture
your... victims? ...I mean fish. Don't know if this will work for certain, but
I think it is worth trying.>
Thanks,
<Good luck! I wish you success! -Mich>
Tom
Re: Getting the Last Fish Out, Light Shock, Tank Trap - 03/02/07
Thanks for the lights off/on idea, I did try it. The ones that are left
(Gramma, Flame, Mandarin) can still disappear, they seem to know their reef so
well they aren't even findable when they hide, let alone catchable out in the
open. Tried both the halides and a bright flashlight.
<Maybe you didn't leave the light off long enough, you want to induce a "sleep"
period. You could also try doing when the lights are normally off.>
Any other ideas, even if not entirely humane for the short term?
Might be better than letting the Crypt kill them slowly.
<I have also heard of a method using a small tank as seen here:
http://images.google.com/imgres?imgurl=http://www.pennplax.com/Images/AQUAscans/Tank%2520Kits/HermitCrabKitCl.jpg&imgrefurl=http://www.pennplax.com/Pages/Aqua.pages..../
Aqua27F.html&h=288&w=279&sz=12&hl=en&start=5&tbnid=aR6CJFfeKDSX0M:&tbnh=
115&tbnw=111&prev=/images%3Fq%3Dhermit%2Bcrab%2Btank%26svnum%3D10%26hl%
3Den%26safe%3Doff%26client%3Dsafari%26rls%3Den%26sa%3DN
Place this tank in you display with the lid open. Then feed only by placing the
food inside the tiny tank. Once the fish go in you will have to close the
top. Getting the fish to go is the challenge. I have heard of some success
with this method. My last experience was quite some time ago, but I ended up
ripping the entire tank apart. Try some of the message boards too, the more
minds the better. I know how frustrating it can be. If only you could reason
with them. It would make things so much easier. A few more ideas here: http://www.wetwebmedia.com/movelvstkfaqs.htm
Good luck to you Tom! Let us know what ends up working for you.>
Thanks,
<Welcome! -Mich> <<Mich... Tom... drain the tank, remove the LR... take the
fishes out, replace the LR and water... RMF>>
Tom
Collecting Marine Invertebrates - 12/02/06
Hi,
<<Hello!>>
I am new reef aquarist.
<<Welcome to the hobby>>
However, I have very quickly become passionate about it!
<<All too easy to do...though my wife's term for it is "obsessed">>
I am a veterinarian and I own a small animal practice. I have begun to take
classes and read books, and now, online posts in order to become knowledgeable
enough about fish and invertebrates to add them to the long list of exotics I
already treat.
<<Excellent!>>
I am very interested in ocean conservation and I would like to begin by having
reef tanks at my hospital.
<<Cool…I don’t usually recommend reef systems for “office” environments, as they
tend to suffer from the frequent and periodic neglect (unless HIGHLY automated)
during weekends/holidays. But as a veterinarian, I’m assuming someone comes in
“daily” to tend to the animals boarded/recovering from surgery/etc and could
thus see to the reef systems as well>>
I have been quite successful in sustaining invertebrates in my reef tank. I
would like to use what I am learning to research the propagation of wild
populations in captivity for the education of my clients and hopefully to add to
what is known about captive sustainability.
<<Hmm...have you seen/read Anthony Calfo's book 'Book of Coral Propagation,
Volume 1: Reef Gardening for Aquarists'?>>
I am aware that in order to collect and transport from country to country I must
possess a C.I.T.E.S. permit. But, what sort of permit is required for
collection within my state, within the U.S., with no intention to export?
<<Laws will vary from state to state; I recommend you contact your state's
Department of Natural Resources and/or Department of Fish and Game. These
agencies should be able to provide guidance on licensing requirements and
species limits/restrictions...if any>>
Thank you so much for your wonderful web site!
Kathye
<<Happy you think so. EricR>>
Catching a regal tang
– 11/15/06
Thanks for the help with this.
<< You’re most welcome. >>
Ultimately, the easiest way to catch it, was to wait until nighttime, move a few
rocks to gain access, and reach my gloved hand in to the tank and simply pick it
up. One needs to be very wary of the spines on the dorsal fin, but otherwise,
if caught at night, the fish does not thrash or fight, it simply allows you to
pick it up and take it out of the tank.
<< Hehe I wish this technique worked as well for me when I tried it with a
Passer Angel. I used a red military filter on an old army flashlight to find the
fish about 3 hours after lights out and ended up with a gill spine puncture in
my hand! Alas, every fish and situation are different and I'm glad you had a
successful catch! I hope your tank is doing well after removal of the problem
child. – Emerson >>
Lisa
Moving X-LARGE Queen Trigger 11/5/06
Hello!
<Hi there>
I am going to be moving our store's mascot tomorrow and would like your opinion
on some of the methods we are thinking of using. And, if you have any
recommendations, please give me some! :)
<Hotay!>
Our mascot is a 17 inch Queen Triggerfish. She is going to be moved into a 180
gallon tank - she's in a 55 gallon right now. The tank isn't even a full two
feet away from her current tank. We are going to move her tomorrow, and we will
be filmed for our local news station, so we want this to look good! :) She
will be fully acclimated by a drip method before the move happens.
As for the methods we have thought about...
1. "bucketing" her. This would involve scooping her up into a bucket and then
gently submersing the bucket into the 180.
<This is best... do watch your hands/fingers... and back while lifting>
2. "toweling" her. This would involve placing a wet bath towel into the tank
and scooping her up. Then clutching the top so that she cannot escape. Then
submersing the towel and the trigger into the new tank.
3. "bagging" her. This would involve taking a large plastic bag (12 x 20),
filling it with aquarium water from her current tank, and having that set
aside. Then take two other of the bags, make slits in the center of the bag,
and then scoop her up with that, placing that into the bag of water, and then
gently submersing her into the tank.
<Will likely chew right through most any thickness, multiple bags>
Unfortunately, this fish will not deal with a net, she is too strong, which is
why I am not going to "bag" her as most would do. Float the bag, etc.
If you have any recommendations for me, I would love to hear them! :)
Thanks so much!
Wendy Legeret
Wendy's Blue Lagoon
<A suitably large, semi-flexible bucket is best here. Good moving! Bob Fenner>
Fish anesthetization in the aquarium 9/9/06
Dear Crew,
I have done a fair amount of research on the anesthetization of
fish.
I give anesthesia (human) for a living so I understand the
chemistry and pharmacology of the agents available.
<Ah, good>
I need to get a Magnificent Foxface Rabbitfish out of my 300 g. saltwater aquarium. I, and my wife, and my son (who works for the LFS) have tried many times to capture this fish, I have tried to use the bottle trap a number of times... suffice to say that
because of the design of the tank and the layout of the live rock (many, many, many hiding places) I have decided to begin researching anesthetizing, or at least sedating the fish just enough so that I can net it, and get it back to the LFS.
They pointed me to MS-222, and I have done further research into tertiary amyl alcohol and other agents also including Carbon
Dioxide.
<Mmm, I would use none of these in an established aquarium. And have
used all of these...>
All the info I have found so far describes the use of the agent
with the fish already in an isolated container. Obviously if I had the fish in an isolated container, I wouldn't have a problem, so what
I would like is your view of using some type of agent in the
aquarium itself. I realize that this will affect the other fish (One 10"
Naso Tang, one 5" Banggai Cardinal, one 3" Lawnmower Blenny, one 3"
Blue Spotted Jawfish, one 2" Hector's Goby), the 5 serpent stars and
about 30 corals to some degree or another.
Any thoughts, or suggestions you may have would be greatly
appreciated.
Thanks in advance,
Dave Harvey
<If it were me/mine, I'd first try a fashioned "squeeze net" to push
the one fish down toward one end (two inert poles and some
reasonable size mesh netting)... and two hand nets once isolated in
a smaller, more manageable volume... or "bite the proverbial bullet"
and drain the tank down... into containers it can be re-pumped back
into the main tank... Bob Fenner>
Re: fish anesthetization in the aquarium - 09/14/06
Thanks Bob,
<Welcome David>
have contemplated your suggestions, but without basically
dismantling the rockwork even a fashioned net doesn't seem like a
workable solution in this tank. If I do drain the tank isn't this at
least as much stress on the other fish and corals as any exogenous
agent might be?
<Mmm, might be>
Not to mention this Foxface is really good at locking itself
in under rocks- do you just suggest waiting until he is
debilitated under these conditions and then removing him?
<Mmm... well... best not to wait>
Is that really any different than turning all pumps off, waiting for
the Oxygen to drop, the fish to get sluggish and taking him out?
<Not advised>
I'm thinking that at least that way, no denizen will have also been
above the water surface and O2 will be immediately be re-established
when the pumps are turned back on.
<Perhaps... but could also (easily) trigger a chain of reactions
resulting in most alls death>
I did speak at length with John Hosch, the curator of the Monterey
Bay Aquarium in California and he says that they use oil of cloves
in the field squirted directly at a particular fish when they need
to rescue a fish that is hiding in rocks, of course in that
situation the volume of diluent is much greater and the effect on
the other organisms in the area is much less of a concern.
<Yes... can be done>
We discussed using a similar approach with a syringe and a
soft catheter attached and shooting it directly at the Foxface,
then immediately doing a water change and using carbon after the
fish is out.
Your further thoughts would, as always be greatly appreciated.
thanks again,
Dave Harvey
<You've tried training this fish to dried/sheet algae? With a large
plastic framed net under... till classical habituation allows the
easy removal... Bob Fenner>
Catching fish 8/17/06
Hi Crew,
Removing a fish is a subject always coming up. I would like to suggest something
that works for me, but it is still not easy. Using two nets,
which has been mentioned before, but do it with the tank lights out. The fish
has a hard time seeing the nets in this case. Unfortunately you will
also have a hard time seeing the fish. But I think this puts the odds in your
favor. You may need someone with a flashlight to help if the room light is not
enough.
<Thank you for this Samuel. Bob Fenner>
Catching Fish... Any Easy Way? - 8/9/2006
Hey crew,
<Yo>
Do you have any good techniques for removing fish from a tank without the need
to remove every piece of live rock? Surely,
<My name is not Shirley:)>
there must be an easier way, and if there is, I'm sure you guys would know about
it!
<No easy way my friend. Using two nets can help some, and removing some of the
water reduces hiding places, but a word of caution here...If your rock is
delicately balanced, mmm. I've tried bait boxes with little or no success, so
don't waste your money on these.>
Thanks.
<You're welcome. James (Salty Dog)>
Spot on Marine Angel fish... owee from decompression procedure?
7/31/06
Hello crew,
<Laurie>
I've been researching on your website, but can't seem find an exact match for a
possible issue with my marine angel.
I purchased a Swallowtail angel two week ago. She is isolated in my QT.
I did not freshwater dip her prior to putting her in the QT.
<Not always advisable>
A few days after bringing her home, I noticed a small white bump on her
side. It's about the size of a scale. I thought that perhaps it might be a
single parasite, so at that time I did capture her for a buffered (baking soda
to ~8.2 pH) freshwater dip (with methylene blue). However, I removed her after
only 1 minute, as she started to thrash, which scared me.
<Can be scary>
Now, after about 10 days, it has turned a yellow-brown. No other spots are on
her. I have decided to leave her in the QT until that spot is gone, but feel
that I should know what it is, so that I can further treat her properly, if
needed.
<Good. This is what I would likely do as well>
I tried to get a picture, but she freaks out at the camera and I can't catch her
in a frame!
Oh - I added a skunk cleaner, thinking that if it is a parasite,
<Excellent>
or actually, anything else that needs to be cleaned off, that he could
assist. I have seen her letting him hop on occasionally. But, the spot is
still there.
Would you know what this spot might be?
<Mmm, likely a "sore" from the process of capture... most likely a/the entrance
of a needle to "decompress" this animal... Many marine fishes are caught at
depths that make such "gas bladder bleeding" expedient, rather than the
long-wait of bringing to the surface slowly...>
Thank you for your help - both past and present.
Regards,
Laurie O.
<Keep your eye on water quality, and don't be too wary of moving/placing this
Genicanthus sp. in your main system. Very likely it is relatively disease free.
Bob Fenner>
Re: Spot on Marine Angel fish 7/31/06
Hi Bob,
<Laur>
Thank you. That's great news. I will plan on moving her this coming weekend,
then. (That will be a full 3 weeks in QT.)
<Good>
Water quality is pretty good in the QT - ammonia and nitrite at 0; nitrate at
20 ppm. I just did a 5% water change, too.
I have another, unrelated question for you, if you don't mind?
<Sure>
I was poking around yesterday, and found on this page: http://www.wetwebmedia.com/mardisindex.htm;
under the section "Biological/Pathogenic Disease: Identification,
Pathogens/Agents, a photo that shows zigzag lines/trails on what may be live
rock (or is it a fish?).
<Oh! Is a pic of nematodes, Roundworms encysted in the dermis of a Moray Eel...>
It is the fourth photo down in this section. I looked at all of the links to
the left, but could not find that photo in any of those links. Do you know what
the zigzag lines are?
<Yes... please see here:
http://wetwebmedia.com/fshwrmdisfaq2.htm
about mid-way down... the same pic>
We've had three occasions of something looking exactly like these in our 110
display tank.
<Mmm>
Twice on the glass wall, once on a rock. We thought they were snail
eggs. But, now I'm worried, because your photo is under the disease section!
Thanks again,
Laurie O.
<There are many such-appearing living "things"... likely what you saw were
actually eggs... most likely of a mollusk of some sort. Not to worry re. Bob
Fenner>
Re: Mandarin quarantine question... Secrets of fish-catching
7/12/06
Hi Bob and WWM crewmaties,
<Steve>
I thought I'd share my success in how I was able to remove 9 small and speedy
fish from my 125 gallon reef tank. This was done to move them into a quarantine
tank for treating an ich outbreak. I managed to do this, but I did go through a
certain degree of trouble.
<Good>
STEP #1- I first searched the WWM website for tips on how to catch fish. I also
searched the web for other ideas. What I found ranged from night sneak attacks
to buying or making a fish trap. One suggestion was to place a sizeable plastic
bag in the tank and to lure fish in the bag with food. These and other
techniques may work for some fish, but none were successful with my fish- shrimp
goby, six line wrasse, flame angel, bi-color blenny, royal Gramma, etc. I was
able to catch my clown pair by engaging in a bit of hunt and chase. The old "two
net approach" did the trick.
Many reefers resolved themselves to simply tearing down their tanks. I did not
want to face this option, given the many hours I spend aquascaping my
masterpiece.
OK, here is my technique. When the plastic bag idea failed (the bag would not
stay open properly due to water movement, etc.), I tried a similar technique
using plastic mesh. This was material similar to the stuff capture nets are made
from. I was able to get a hold of this material from my place of work. Well,
this idea didn't work, either. Although I was able to keep the mesh purse I made
to stay open sufficiently, the fish wanted nothing to do with this contraption.
Baiting the purse with food did not entice them, either. I know, we're dealing
with little brains that have had millions of years of evolution and genetic
programming to learn how to stay clear of danger.
My brainstorm was to use this mesh material to enclose one end (only ~1/3) of my
tank. Window screen material (if safe) or something similar can be used in
place. I used suction cups from my utility powerheads to attach the mesh to each
front and rear glass side of my tank. The suction cups were attached to the mesh
with simple supermarket twisties. I used some additional material to double-up
on the ends to make sure no gaps were present. I dug the mesh into the substrate
and piled sand around the edges to make it secure.
I only affixed one end of the mesh gate, keeping it open to chase the fish to
that end. I simply moved the corals and other inverts to the free end of the
tank. I was able to chase a few fish (angel, blenny, royal Gramma) to the
capture end without too much trouble. I closed the net, removed a few pieces of
live rock, and whammo- net your fish. Yes, this part of the tank will pretty
much have to be dismantled. I drew pictures and took some measurements of key
rock placement to simplify reassembly.
I figured the toughest fish to catch would be the goby. He pretty much stayed in
one or two burrows excavated by the pistol shrimp. I was careful to place the
mesh screen to ensure his burrow was in the capture zone. This took a little
doing, but it did work. This little guy, Orange-striped Shrimp Goby, is FAST and
able to zip into the substrate, burrow or no burrow. During one part, the goby
managed to get in the clear-zone part of my tank. Another idea of mine used
left-over tubing from my RO water filter to blow bubbles into the bottom of my
tank to chase the fish. This worked great and did not hurt or disturb my corals.
The toughest fish to catch was the six line wrasse and purple firefish. Chasing
them was tricky. I managed to capture the wrasse (the last one) simply by
keeping the mesh gate open, waiting for him to venture to that side, and
enclosing him for a simple capture. While not perfect, this technique does work,
especially for larger reef tanks. Now, if I'd only set-up a quarantine tank
first...
Steve
<Thank you for sharing. Bob Fenner>
Sweepers 3/30/06
I've have already searched through your website and have not been able to
locate any information. I have a question regarding sweepers, who I believe are
in the family Pempheridae.
<Ah, yes....!>
Why don't you see them offered for sale?
<Good question... hot hard to find in reef, coastal/rocky settings... and easy
to catch (have done so)... But don't take to handling well (die easily with
scale, slime loss from netting)... and the one real reason: They're "not on the
list"... of items/animals folks order/buy through the "chain of custody"... A
phenomenon I call the Founder/Flounder Effect... "Folks don't ask for things
they don't know about, so they don't see/gain exposure because they didn't get
caught, because no one asked for them...">
I see them in reef pictures all the time (usually hovering around a coral head
along with various Cardinalfish), so it appears as though they are fairly
common. Are they difficult to keep?
<Have been kept by Public Aquariums off/on... but the vast majority of caught
specimens die in a short while...>
Are they similar to the Anthias species in that they need to be frequently fed
in order to be successfully kept? Or do they simply not ship well?
<Good questions... I know naught. Bob Fenner>
Thanks for your help,
Brian Lory
Costa Rica marine life collection for personal use 3/25/06
Ladies and Gentlemen,
<Ron>
Need a specific answer regarding who in Costa Rica I would need to contact to
secure a permit to collect my own marine specimens . Will be flying into
Liberia, Costa Rica.
Thanx
Ron
<Mmm... likely their "Dept. of Natural Resources"... and/or export office of the
government (start this now... takes a good long while). Will you be staying with
folks in the trade there? I would ask them to let you use their collecting and
exporting permits, and as importantly, tools and materials for successfully
boxing, shipping your catch. The OFI members list may help you to identify folks
involved in the industry there. Bob Fenner>
Collecting in Kauai? 3/4/06
Hey crew,
<Eric>
I was going to go snorkeling / diving on the island of Kauai this spring. I was
wondering what I need to do to maybe collect a fish or
coral for my aquarium (being that I am good enough to actually catch it).
<Mmm, the fish... not advised, the coral, illegal>
I was wondering if you can point me in the direction of portable filtration /
oxygen / heat supply for the flight home. I was planning
on flying out in the evening if I can so I can do the collection the
morning/afternoon of my flight.
<Much better to buy animals there (if you want to...) that have been "pooped
out" (non-technical term, but necessary), otherwise "hardened" by a few to
several days time in captivity (post collection)...>
Do you know where I can find paper work to get a temporary license to harvest
wild life legally?
<... You could get a fishing license from the DNR...>
Also is there any advice you could give me for collecting small fish or maybe
a small piece of coral.
<I have a piece on the subject posted here:
http://wetwebmedia.com/collhiway.htm and the linked files above...>
I will only have about 1 gallon of water, with a small air supply. I was
thinking of getting some heating packs for keeping the temp good.
I really don't want to hurt anything in this process. I just want a little keep
sake for my home aquarium.
Thanks
Eric
<Read. Bob Fenner>
Removing troublesome fish - 2/4/2006
Hello,
I have a 125 gal reef tank with many inverts and corals. I would like
your advice on how to remove 2 blue damsels and 1 freckled hawkfish from this
aquarium.
<Condition to come to surface, corner through feeding... could try traps...
baited... sold by folks like Dr.s Foster and Smith... or have to drain tank...>
I don't want to disturb my 120+ pounds of live rock or my corals. The corals are
all growing and are happy where they are. Is there any way I can catch these?
<Small barbless, baited hooks?>
I have heard of placing a hook in the aquarium with the barb removed and place
some food on it, but this seems difficult because the damsels mouth is very
small. I would like to place them in a 10 gallon tank quarantine tank for 2
months. I suspect some ich and would like to let the tank fallow. I have seen
some traps available but have never used them. Netting these fish is impossible
due to the amount of corals and hiding places in my reef. Any advice would be
greatly appreciated. Thank you...
<Good hunting. Bob Fenner>
Australia Collecting License and fence/barrier nets 1/17/06
Hi Bob am looking to buy a fish collecting licenses in Australia what do you
think and were can you bye fence nets etc Hank
<Mmm, licenses in the "Land Down Under" are closely numbered and regulated.
Likely you would have to become a citizen, and either buy into an existing one,
or add your name to a list, lottery to win one if/when same became available.
Fence nets can be made (I used to do this... don't!), or bought from outfits
that make them by machine... Look to the aquaculture industry, magazines... I
used to get mine from Memphis Net & Twine. Bob Fenner>
Hunting for eels! 11/6/05
Hi, my name is William; I live on an island in the Caribbean. I live on the shore and lately have been chasing after what I believe to be chain-link
morays.
<Most common species in shallow water there...>
It seems to be tougher than I expected. I was wondering if there are anyways of attracting these magnificent eels to a certain area. Just the
other night I went to look for them since they are nocturnal, but I believe they went out to sea for feeding. The area I usually find them in is a small
cove covered in spiny lobster, parrotfish, sea urchins, and green morays.
Recently I have seen three of them in the span of two days. Two of them were large averaging about one and a half feet long. The third though was quite
skinny and was about eight inches long. Any help would be greatly appreciated, thank you.
<Can be caught in "minnow traps" incorporating a fyke on one/both end/s... with bait inside. Or with a barbless hook and line, with something meaty for bait... or via a small fence and hand net... Please read here:
http://www.wetwebmedia.com/collmarsdvg.htm
and the linked files above, and the accounts on moray eels archived on WWM. Bob Fenner>
Collecting sand, water, flora and fauna from Carolina Coast 10/13/05
WWM team and friends, Good day and hope you are all well. I want to first state for all of us out here in apprentice/journeyman land, appreciation for your patience and expertise.
<Thanks for the kind words! We are truly happy to help and contribute!>
Item 1: Unrelated to topic but have to state to Bob the last status on the SeaClone 100 skimmer (my pc crashed, lost all mail so thread is not intact). It has been up and running over a month now and contrary to most popular opinion, working rather well. I recommend it.
The new revisions seem to be fine-it could still be improved but can't everything? I am getting dry foam and about 1 1/2 cups a week of green/black stout from a 38 gallon tank with 27 gallons of actual water (yes, I was anal about ensuring I knew how much water for dosing, changes, etc.. :) ). So if you like, feel free to post this part with the other thread on the skimmer section. Only issue is that for the money, I should have gotten the 150.
Local P*TSm*rt stores here honor their online web price that is generally $30 less than their actual stores and other LFS in the area wanted $130 and up for this skimmer - not a good buy then :). Only question on skimmers in general is do ya have to use a prefilter sponge? When you take it out to clean it, half of the stuff it filtered leaks into the tank anyway so
what's the point?
<I am glad to hear that your SeaClone is working. Your experience is truly and exception. Prefilters are not necessary.>
Item 2: The meat of the questions. I have the opportunity to get a gently used 75g glass/stand/canopy with darn near everything including canister, lighting and Magnum HOT for CHEAP. I would like to use my knowledge acquired from YOUR brains to do a better job this time, however, I am still a cheapskate soon to being out of work. <It is nice to find good deals! I am not a fan of canister or HO filters for marine tanks (see here:
http://www.wetwebmedia.com/ca/volume_2/cav2i5/Filtration/Filtration.htm). I would suggest selling these filters an applying the proceeds to live rock and a skimmer.>
Since I live a couple hours from Wilmington, NC and my brother has a beach house one block from the sound, intracoastal AND TopSail beach that I have access to (he is the comfortable one in the family), I would like to know if it would be an okay mix to use sound/surf sand and water and perhaps
plant life, yet, stock with the typical tropical flora and fauna like damsels, crabs, corals, etc..?
<There are many issues with this. Any temperate life (brought with sand or intentionally introduced) will not survive for long at tropical temperatures. Some tropical species make their way up into the Carolinas during summer months, but you have to really know your stuff!>
The water tests well for sg and basic tests. The sand is fine, brown Atlantic sand, not aragonite. Not sure if it has silicates but have to imagine it is as good or better than the Home Depot sand so many people seem to rave about that looks like someone swept up sand blasting sand after use and put it in a bag for sale.... Additionally, I do find small rubble rock and would like to know if this is appropriate as well.
<This sand is surely high in silica, although I am don't believe that this is a significant problem. I would be more worried about pollutants (sewerage, fertilizers, pesticides, boat fuel, etc.) from sand collected on or near shore. "Live sand" is generally collected from areas around reefs in at least a couple of tens of feet of water. The same applies to the rubble. Using natural sea water for water changes has many benefits if you have access to it, but it can also introduce pollution or disease if you aren't careful.>
I am not a naturalist and don't know the micro flora/fauna indigenous to my region but imagine that in using the sand/water I will likely find out and want to ensure that it is ok. I have refrained from using local saltwater to this point not for fear of contaminants or pollution (NC is actually highly stringent in enforcement since we are a shellfish producer) but for fear of it not being correct in some way from the normal environs of the stock.
If that is not an issue, I much would rather trek down to Wilmington for a weekend or two a month at the beach for free and stock up on water than continue to spend $$$$$ on RO and salt mix. And spend those dollars on caring for my marine dependents in other ways like a refugium and such.
I would imagine the local water has good bacteria strains as well that the mix does not. I would also imagine that cycling should be much more effective. Your thoughts? Sincere appreciation and regards, Bill
<While the use of NSW is inexpensive, the risks are also high. It may work well for a while, but it is a game of
Russian roulette. Facilities that use NSW usually filter it aggressively as well as ozonize it to prevent introduction of pathogens and pollutants. This process is only cost effective on a large scale. Best Regards.
AdamC.>
Moral fish dilemma 9/11/05
Hi Bob,
I have been browsing through WetWebMedia.com but I didn't come across any
articles that are related to my dilemma. I apologize in advance if I have
overseen any previously answered questions. So, basically I recently started
my first saltwater tank and went netting with my friend in Long Island, NY.
We didn't really expect to catch anything but thought it would be fun to
try, nevertheless. However, we ended up netting 3 juvenile lookdowns, 1
adult lookdown, 3 tiny puffers, 2 tiny flounders, and 2 tiny butterfly fish.
The major problem is that the tank I have right now is only 29 gallons and
as I've read on this website, its not good to keep a lookdown in anything
less than about a 150 gallon tank. However, if I release the fish back into
the Long Island water, I know they are going to die once winter sets in. At
the same time, I have neither the resources nor the experience to maintain a
150 gallon tank. In your expert opinion, what should I do? Would I be able
to sell the lookdowns or donate them? I would really appreciate any help you
could give me. Thanks!
-Rush
<I would call the local fish stores, aquarium service companies, the NY Aquarium
Society president, board members, and ask for their assistance here. Bob Fenner>
Going Fishing For Dominoes - 06/03/05
Well I have a 500 hundred gallon acrylic aquarium and I have 2 domino damsel
in there from day one. They are huge 5" in dia.. And there laying eggs all
over. But my problem is they are nipping my other fish and are very aggressive
and disturbing the gravel substrate and making the tank always look
cloudy. My question to you is how can I catch them I tried several times but
they are to fast for me to catch and the top of my aquarium only has hatches,
all I wind up doing is upsetting the rest of the fish. Any help I would
appreciate. And of coarse I would find them a good home.
<<Had this very same problem myself years ago before I learned better. Domino
damsels are the cutest little buggers when they're about the size of your
thumbnail...but it doesn't take long for them to grow up mean and nasty! I
solved my domino problem by using a small barbless fish hook, some very fine
monofilament fishing line, and a bit of raw table shrimp. This tactic is
surprisingly effective due the fishes natural aggressiveness. Give it a
try! It's actually less stressful/harmful to the fish than chasing it around
with a net. And provides a great little ultra-light tackle workout as well
<G>.>>
That's jimmy... Ps I love you web sight thanks
<<Regards, Eric R.>> Catching wild marine fish
Bob, if I go on vacation to a tropical area where I would dive, can I try to catch certain fish, if I see them, and ship them back home to put in my aquarium?
Thanks
Gabe
<Can indeed be done... and is a great deal of fun (and learning experience). I have a few articles posted on WWM re this, and we have a good deal of pertinent input from others archived in FAQs files on the topic. Bob Fenner>
Re: White Fecal Matter, actually trapping fish/es in large tanks
I have a follow-up question. I have a 250 gallon full reef display tank in my living room. I have a Powder Blue tang which may or may not be suffering
from a spot of lymphocytes. As I mentioned, it is a full reef, so the moment a net comes anywhere near my tank, the fish dart behind the rocks. I don't
want to have to remove all the corals and live rock and millions (not really millions, but it seems like it) of inverts. Any suggestions on removing
this fish with a trap? If so, any particular ones? Any good methodology for achieving this?
Thanks for any advice.
<The best such trap is a large net, conditioning the fish to not respond to its presence... takes time... days to weeks... but leaving the plastic or all-plastic coated net in the tank, feeding above it can/does work. Bob Fenner>
Slurp guns in Australia?
Hello Bob,
I have recently setup a 6' marine aquarium and it seems to have stabilized (4mths on). The tank is fairly bare at the moment, no live rock as yet, (at $20/Kg I'm saving up)
<Yowzah! At this price almost worth making your own!>
8 or 9 small fish and a slipper lobster. My first question is, will the addition of the 100Kg of live rock that it is suggested a tank of this size needs require any time for water quality to
stabilize again?
<Absolutely! Do cure it elsewhere, place maybe ten kilos a week, with testing>
On the central coast of N.S.W. Australia where I live (33 deg. Sth) our waters are classified as temperate; having said that, each summer a warm current brings a range of juvenile tropicals down from the north
(G.B.R.). 20 years ago I had some reasonable success collecting several species of Chaetodons, Heniochus, Scorpionfish and the like while
snorkeling (very strict collection rules down here). Unfortunately for the little fellows, when the water cools in Autumn from 25deg. down to 16deg.
Celsius...
<Brrrr!>
...my earlier assumption that the fish receded back north with the current is wrong. The silly buggers stay here and die.
<Yes>
I'll get to my second query. I'm not sure if its my age or the fish are quicker than I remember but I desperately need to find a supplier in Australia that sells slurp guns (hand scoops are the only other option allowed here). I bought one back in the dark ages in Sydney (early 80's) but
can't find one in Oz these days. I realize that it's a very long distance request, but can you advise me where to look?
<Mmm, come to think of it... I don't recall seeing these sold anywhere, anytime I've been there... I take it you've tried the Net... dive shops... are there any large acrylic fabrication businesses in large towns in the country you could contact re? If anybody knew of folks making them, they would>
If you can't help with an Australian source I have a friend in Ohio who may be able to purchase one for me if there are any in that area. I'm trying to avoid the hassles and risks of shipping one from the states if possible.
<There are some medium quality units still made by Aquacraft, I think still in S. Cal., but I don't see a URL for them through Google>
P.S; A word of advice for the earlier request by a fellow concerning the Ballina Angelfish, they are totally protected in our waters.
<Thank you for this. Bob Fenner>
Rotenone - Fish Collecting
http://magma.nationalgeographic.com/ngm/0402/feature3/zoom1.html
<Thanks for this. See you soon. BobF>
Collecting live marine animals for personal use
Hello to all , I have enjoyed collecting small animals most of my life, Now with a 7 year old son we
explore many habitats for creatures of all kinds. We have recently a heightened interest in a reef tank and we are both excellent in the water, I scuba and skin dive. I would like to know practical ways to safely capture and transport marine life back to my home town of Cincinnati , Ohio any suggestions on equipment and techniques are appreciated
Thanks Lawrence and Ashton
<Please read the articles and FAQs archived here: http://www.wetwebmedia.com/MarInd3of6.htm
- scroll down to "Collection...". Bob Fenner>
Collecting in Panama
Hello crew-but especially for Bob,
I am trying to contact anyone who has information regarding
collection and export of marine fish from Panama. In past articles
about Mexico collection, Bob had mentioned that Panama appeared to be
"wide open". I have tried to find anyone who could give me a contact
without success. I even have had one person comment that they were closed
to export.
You recently have had questions from someone living in Portobelo
area of Panama, and although he doesn't appear to be a collector, I am
wondering if he could be of any help.
Do you have any suggestions or comments, Thank you, respectfully,
Grant
<Mmm, the OFI doesn't list any members for Panama unfortunately:
http://www.ornamental-fish-int.org/members/members-directory.asp
and I haven't been to Los Angeles in a few months, not that my memory is all
that intact... but I do believe there are still collectors operating on both
sides of the canal. You might try contacting the federal "fish and game" there,
maybe even the local tropical fish stores to ask where they get their
livestock... even the "yellow page" directory under Pescados Tropicales... Bob
Fenner>
Hooked on fish, worried divers seeking limits
This story was sent to you by: Pryor
Bob & Crew
Thought you would find this interesting. Any feedback on it?
thanks
-Ray
<Thank you. My notes below>
--------------------
Hooked on fish, worried divers seeking limits
--------------------
Florida may curb pet-trade catches
By David Fleshler, Tribune Newspapers: South Florida Sun-Sentinel. Staff
photographer Joe Amon contributed to this report
November 25, 2004
About 3 miles off the coast of Islamorada, Ken Nedimyer glides along the ocean
floor, trailing bubbles from his scuba gear and carrying two nets.
Two yellow Jawfish emerge from their sandy holes. He squirts them with an
anesthetic called Quinaldine and scoops them up. Within a few days the fish
would be airborne, packed in oxygen-rich water, on their way to aquarium-supply
stores in Cleveland and Columbus, Ohio.
Nedimyer is among a group of highly skilled Florida divers who earn a living
providing live fish for the aquarium trade. He knows where to find angelfish,
blue tangs and dozens of other species sought by collectors. Equally important,
he knows how to get them alive to Chicago or Phoenix or New York.
But with fish stocks around the world threatened by overfishing, Florida
wildlife officials have decided to impose limits on the business of catching
live fish for the pet trade. At the urging of Nedimyer and other professionals,
the Florida Fish and Wildlife Conservation Commission has proposed rules that
would reduce the number of permits and offer only limited ones to
non-professionals.
<Fish stocks have never been shown to be challenged by the ornamental
industry... our means of collection are inefficient, scattered>
"This fishery is largely pursued in sensitive areas, particularly coral reef
areas," said Lee Schlesinger, spokesman for the commission, a board appointed by
the governor that sets the rules for hunting, fishing and wildlife protection.
"A lot of people go out and dive and just look at these animals, and we want to
make sure there's plenty there for folks to enjoy over the years."
<Who pays these peoples' wages?>
Florida and Hawaii are the only states with substantial aquarium-trade
fisheries. In Florida, an estimated 75 to 100 people make a living catching live
fish for the aquarium trade, along with about the same number of part-timers.
Most work out of South Florida, along the coral reefs that stretch from the Keys
through Palm Beach County.
Tom Scaturro, owner of Tom's Caribbean Tropicals of Tavernier in the Keys, dives
one day a week. He faxes a list of what he has caught to about 200 pet shops and
aquariums, and he posts price lists on his Web page. This week's offerings
include medium-size sea cucumbers for $4 each, large blue tangs for $40, a large
strawberry grouper for $12, a porcupine puffer for $24 and dozens of other fish,
plants and invertebrates.
On Sunday he assembles his orders. He ships small orders via Federal Express and
large orders on commercial airlines. He does about $1,000 a week in business.
<Wow! All from a days diving? Great!>
Catalog of catches
The industry catches millions of fish and invertebrates in Florida every year.
In 2002, the trade included 29,815 angelfish, 19,273 damselfish, 8,490
surgeonfish and 18,095 wrasses, among many other species, according the Fish and
Wildlife Conservation Commission.
<What? Is this the new math? Where are the millions coming from? Not the above
figures, plus other species collected in FLA...>
While no one knows whether the aquarium trade has caused any species to decline,
divers and government officials say there appear to be fewer of these fish in
Florida waters.
<Appear? Is this science?>
"My gut feeling is that some of these species numbers are down," said Billy
Causey, superintendent of the Florida Keys National Marine Sanctuary, who used
to catch fish for the aquarium trade.
<What? A gut feeling?>
Causey and other experts say the drop in numbers could have many causes besides
fishing for the aquarium trade, such as pollution, overfishing generally and
global warming.
<Sure>
"The blame lies with what we have done to the ocean," Causey said.
<Not necessarily>
Formal stock assessments have not been made for any species captured for
aquariums, which means no one knows whether the current level of fishing is
sustainable. That lack of information is precisely why many fishermen are
pressing for restrictions.
<Should be based on science... stock assessments, monitoring...>
"There's no science on this fishery," said Nedimyer, chairman of the Florida
Marine Life Association, which represents people who catch the fish. "Nobody
really has a clue how many fish are out there. There's a handful of us trying to
be managers, trying to help the state do the right thing."
90%-plus survival rate
The vast majority of fish that are caught survive the trip to the pet shop,
according to people in the industry. Nedimyer said his survival rate easily
exceeds 90 percent. When he loses fish, it's generally because a flight delay
leaves the fish in an area that's too hot or too cold, he said.
<Yes... or we'd all go broke>
Some environmentalists object to the use of the anesthetic Quinaldine to catch
fish, saying it harms nearby fish and coral reefs. Animal-rights groups oppose
the trade in principle, saying it's wrong to confine fish that haven't been
raised in captivity.
<Not collaterally harmful>
"We don't think life in an aquarium for a wild-caught fish is what you want to
see," said Richard Farinato, director of captive protection for the Humane
Society of the United States.
The effort to restrict the aquarium-fish trade began several years ago.
Concerned when the number of permits rose past 700, the state wildlife
commission in 1998 imposed a moratorium on new permits. Even though only a
fourth of permit holders actually caught any fish, the commission was concerned
that the dormant permits could suddenly come into use.
The moratorium expires next year, and the commission now is trying to establish
rules that would permanently hold down the number of permits.
Causey said the restrictions will help drive out the amateurs, who hold fish in
garbage cans, put incompatible fish together or put big fish in a position to
kill small fish.
<Uhh, what about fisherfolk? They take several orders of magnitude more biomass
from the sea? Hello?>
"It is critical that you have people that are professionals all the way," Causey
said. "It will definitely weed out those that are not serious about it."
Copyright (c) 2004, Chicago Tribune
<You'll be next. Bob Fenner>
A damsel/fish problem
In my marine biology class, we recently got 4 blue damsels, 1 yellow tailed
damsel, and 2 4-striped damsels in. They were distributed blue blues to each
tank, the yellow in one, and the striped in the other. Within a few days one
blue damsel in each tank got the "lockjaw" that I have been investigating. They
were each in separate environments for about 2 to 5 days, so I don't think it
has to do with the environment, and it hadn't injured itself on anything. Both
fish had died by the next day. We dissected one and nothing was stuck inside to
prevent the mouth from closing. Today another blue fish has this same lockjaw,
and we don't know what to do to cure it, if there is a cure. So unfortunately we
assume it will be dead in the morning. Could you email me back with what you
think the problem is and the solution, if there is one.
Thank You
-Paul Hooper
<Mmmm, don't know of this ailment "lock jaw" in Pomacentrids. Some do die
shortly after arrival (all are wild-collected) with their mouths "stuck open"...
perhaps a manifestation of these specimens inability to generate sufficient
oxygen, or loss of osmotic integrity... consequent to poor, rough collection,
shipping trauma. Fishes have very high (relative to terrestrial tetrapods)
hematocrits (packed cell volumes) and live in a world/environment much less
oxygen concentrated (at most about 7,8 ppm of O2)... and can have real troubles
if the availability of oxygen drops, other influences to its uptake occur (e.g.
drops in pH, elevated ammonia in shipping containers, slime wiped from their
bodies...). Much more could be mentioned as possible sources of mortality, but I
strongly suspect these anomalous losses are due to environmental stressors. Bob
Fenner>
Becoming a Conscientious Collector (in Hawai'i)
Dear WWM Crew,
<Hi there>
First off I would like to say thank you for the wonderful site, the wonderful
services your provide, and the great books by BF and AC. You guys have been a
tremendous help and I truly appreciate the wonderful work you guys do!
<A pleasure to serve>
I currently have the opportunity to move to Kauai. We are in the initial stages
of planning in buying land and having a house(s) built near Kapaa.
<A beautiful area. I spend a good deal of time in Hawai'i, own a house near Kona
on the Big Island...>
The ability to have both land and home paid for would give us the flexibility in
choosing our line of work. While I have years of experience in the computer
industry, I am much more interested in continuing my education in aquariology
and related sciences. I have spent years trying to find the "right" line of work
and while snorkeling the thought came to me of "how can I do this for a living"?
<Can, though it is not "easy">
My questions revolve around the legality of collecting marine specimens for the
trade in the Hawaiian Islands, where I might find some further resources in
getting started as it relates to shipping procedures, QT of livestock before
shipping to dealers, dealer contacts, etc.
<Contact the (DNR), Department of Natural Resources... and a few folks about...
Randy Fernley of Coral Fish Hawai'i (on O'ahu)... I know collectors on the Big
Island... there are such on O'ahu and Maui... none that I'm aware of on your
island>
I have read through most of the FAQs in the business area but didn't see much
info as it relates to collectors. Could you please point me in the right
direction?
Thank you so kindly,
Jaime Knapp
<Jaime, do spend your time profitably, visiting with a few collectors... and
learn "hands on" what all is involved. As stated above there are at least two,
three "full-time" jobs here... running the boat, doing the actual diving
(placing nets, driving fishes into them, catching them off the barrier/fence
net...) knowing "the ropes" of where to get, make netting, catch baskets, how to
best "decompress"/needle the catch, the actual techniques of using "chaser
poles", other catch gear... AND building out, operating a holding system, paying
appropriate attention to water quality (likely hauling large amounts of
water)... AND doing sales and follow-up with the "A" players in the world who
will buy (and pay) for your catch... AND making bags, buying boxes and cardboard
liners, learning what size, species go in what size, shape bag, how to bag
them... and having a crew (at least another person) to help. BEST and the only
way I would/will proceed is for you to go and work with someone or two in the
trade for a month or more... to live what is actually involved. I am very
interested in realizing good people join the trade, and will gladly help you...
Please make it known when you can visit the islands and I'll introduce you to
people who know what to do, and are doing so. Bob Fenner>
Local Collections
Hi Guys,
<Slug>
I am very new to marine aquarium keeping, and after many months of research have
recently begun my first 'setup'. My original goal is a DSB with plenum system,
and mobs of live rock ala Tom Miller/Jaubert. I live in Darwin (tropical north
of Australia), and as I scuba dive, my intention is to completely stock the tank
with self collected rock and inverts (Aragonite Sand for the DSB will be my only
'purchase'!). While Darwin is blessed with magnificent offshore LPS, SPS, soft,
Gorgonian and Sea whip forests and reefs, the conditions are quite unique, and
far removed from for example the GBR. We have massive tidal movement (up to 8
meters!)
<Wowzah!>
and monsoonal downpours that make the water clarity 'very ordinary' (in diving
terms 3 meters visibility is a good day here) and obviously restrict the amount
of light reaching the reefs. Offshore underwater temperatures fluctuate between
18c and 33c in different seasons.
<A challenging environment to put it mildly>
Given that all my inhabitants are locally sourced and live naturally in these
conditions, do you think it absolutely necessary that I have MH or VHO lighting
(I'm thinking I might get away with standard 40watt daylight & actinic fluoros),
<Should be fine>
and will the consequences be dire come 'hot season' when the tank's water
temperature reaches 32/33c (given that my inverts inhabitants handle this 'in
the wild') if I don't invest in a chiller?
<If not too drastic a change they should weather this as well>
Is there any need to 'cure' the live rock given that I bring it to the surface,
immediately place it in plastic water filled tubs, and within a 15 minute boat
trip it is sitting in my tank?
<Very likely no need for "curing" here>
(My understanding is that the curing process only pertains to LR purchased at
retail and spending large amounts of time 'in transit' and therefore killing
many critters on board).
<Yes>
Last question (I'm sure there will be many to follow!) - my original water ( and
subsequent water changes) are also sourced 'from the wild' (we luckily have
little or no pollution in Darwin). Should this partly negate the need to 'feed'
the likes of SPS and Gorgonians given the fresh ongoing supply of plankton in
the water?
<Right you are>
Hope I haven't 'outworn my welcome' with such a large War & Peace effort in my
first correspondence - look forward to your valued advice,
Slug
<Thank you for sharing. Bob Fenner>
Postlarvae collect & growth as alternative to marine wild catch for
aquarium trade
Dear Sir,
<Bonjour>
Ecocean is specialized in postlarvae collects in
Polynesia. So as to expend our raised-tank stock list
I have 2 questions :
-Do you have producers address for bred marine fish
(like ORA etc.) anywhere in the world.
<Yes. A brief listing of these companies can be found by reading here: http://www.wetwebmedia.com/AqSciSubWebIndex/orncultart.htm
and through OFI's listing/member directory>
Also we would like to implement a new fish farm in
south east Asia (e.g. Philippines) do you happen to
know 'classic 'fishermen for marine aquarium trade or
aquaculture fish farmer with whom we could have a
partnership for this nice alternative practice?
<I would contact Svein Fossa, Peter Rubec and Daniel Knop here. Am cc'ing
them for their response to you. Both have extensive experience in the region and
field>
We
are also willing to develop the Development Aid action
for local young people willing to stay in their island
and protect it (training, restocking etc.). More on ECOCEAN ? www.ecocean.fr
Waiting to hear from you,
Sven-Michel Lourié
<Glad to make your acquaintance. Have read and heard many good things about
your company and its programmes. Bob Fenner>
=====
ECOCEAN
80 Rue des Graves
34980 St Clement de Rivière
FRANCE
Tel/Fax : + 33 4 67 67 02 84
Cell : +33 6 18 39 82 80
www.ecocean.fr
Re: postlarvae collect & growth as alternative ...
Bob,
I was told that the collectors capturing blue tang post-larvae target flat-top Acroporids
and that they damage the corals during the collection process
(personal communication, Mike King Coalition of Reef Lovers-CORL).
<I had not heard/read of this... no need to damage the reef using this technique...>
Since, hobbyists don't seem to care about coral reefs or the future of the trade, I will not be attending any of these meetings.
Peter Rubec
<Yikes... Peter, I assure you most all the hobbyists I'm familiar with care passionately re the world's reefs... attend some of the hobby conferences and am sure you'll agree. Bob Fenner>
To Catch a Tang...
Hi Guys,
<Lyndon>
I'm hoping to a purple tang for my tank....The LFS doesn't sell em here but good news is that they are endemic to the UAE waters...I've seen schools of
them when snorkeling and would like to know how to catch one of em for my tank....
<Please read through the marine collecting articles and FAQs indexed here: http://wetwebmedia.com/MarInd3of6.htm
>
We don't have restrictions on reef fishing here as its evident from the number of Asfurs and Sohals that turn up dead at the Fish market for $2 a
KG.
Thank You, Lyndon
<You'll need to buy or fashion a barrier/fence net... much else is detailed on WWM. Bob Fenner>
Collecting fish in Bahamas
Bob, or whomever might be answering today.
<Hello there>
I'll be scuba diving /snorkeling in Bahamas (Man of War Caye, Abacos) in June, and would like to bring home a Royal Gramma for my tank. I've
searched online for information regarding collecting ornamental fish in Bahamas, but have found conflicting information. Do you have
experience/know where to point me to attempt to get permission to bring home 1 fish, which would not be for resale?
<Good words to repeat at the point of going through airport security. Do contact the "fish and game" equivalent in the Bahamas re this matter... If it were me, I might also try finding a LFS there (for bagging, oxygen help) and ask if they might supply a receipt for you... Good hunting. Though plentiful where you find them, Gramma loreto is quick to avoid nets! Bob Fenner>
Many thanks, Suzy
- Look What I Found... -
Dear Friend
I have caught the Conspicuous angel close to the Australian coastline and have
observed the extremely rare and undescribed Ballina angel as well as other rare
and endemic butterfly and angel fishes of Australia, do you know what the above
are worth on the international market? <Both would be worth good money if you
can get them to the end destination in good health. Would suggest you try to
find a collector/shipper in your area and make arrangements with them to provide
them with the livestock. Any moneys these fish can command will be limited by
your economy of scale and shipping fish in one-zies and two-zies. Regards, Wayne
<Cheers, J -- >
A word about collecting your own: don't (please) 4/6/04
I am going down to emerald isle, NC this weekend to do some fishing and relaxing....I was wondering if it would hurt my tank if I was to go down to the
jetty and take 5 or 10 hermit crabs and put them in my tank?
<yes>
is there a difference?
<yes... animals from temperate waters (the coast) versus tropical (your tank). Beyond that, the likely lack of QT risks the introduction of parasites, pests or diseases that are more tolerant of the change to warmer water than any inverts or fishes collected from there for ill-fated tropical aquaria>
is it legal?
<probably, but you should consult the local/state game commission. Anyone with a fishing license... the state website, etc>
has anyone ever done this?
<yes... and they perish - abbreviated lives (the collected, not the collectors)>
will they eventually eat corals?
<likely, yes... crabs are opportunistic predators. Very few are truly reef safe>
I know that usually you want blue legs in a tank....
<actually no... while they are popular, they are not necessarily ideal for reef aquaria. For tanks with live sand/substrates, hermit crabs are a net burden on desirable life forms (they ravage the infauna in sand and rock). There are much better choices of
detritivores for these tanks then crabs (best for FO displays instead). Anthony>
Wild Caught fish, Clown rashes
Hi,
<Hi there, Magnus here. sorry for the delay in response.>
I have a 1" saddleback together with a puffer fish on a tank filled with
sea water for two weeks now. I've been maintaining self sustaining
freshwater ponds way back in 1999 and decided to stop due to hectic sched.
<I know that exact feeling!>
Anyway, these two were given to me as a present by a friend who just arrived
from a diving vacation. This raised my desire to do fishkeeping
again.
<You picked some great fish to get back into the hobby. Puffers
are extremely personable fish!>
These marines were originally transported in a 5-gallon container (a prison)
filled with sea sand, a few corals and sea water (their natural
environment). Quite a convincing present.
<quite an interesting gift! I wouldn't mind getting something like that for a
present.>
Right now, I am preparing the main tank where I could house them. It
sounds odd that the fish came first before the aquarium is done.
<Not typically the way to have it done, but as long as you work, it should go
okay.>
I just added an under-gravel filter to their prison to make life a bit
comfortable. I changed water last week to fresh sea water taken from
a nearby island where they came from. I only measure the SG from time
to time assuming that natural sea water needs no pH, ammo, trites and trates
monitoring.
<you are right, Sea Water is pretty much sea water. just be careful
where the water is collected. Make sure not near any outlets, or
docks were man made chemicals or wastes are in the water. Can be
dangerous for the fish in such a small area.>
Lately, I noticed that the saddleback is occasionally scratching its body on the
filter tubes especially when I switch off the filter.
<Many fish in the ocean have skin parasites, it's probably something like
that. and the fish is rubbing on the objects to get the parasites
off.>
I also noticed, that there are some very fine pink rashes on its white stripe
near its head. I cant figure out if its an itch.
<The pink rashes are most likely bruising from the fishes rubbing. I would
suggest adding some medicine to the water to help fight the parasites. If
you have any stores that carry Mardel medicines I suggest you pick up some
Maracyn Tablets. They should work well for curing the fish of
external problems.>
Both are doin good on their appetite. I am planning do some
freshwater-Methylene Blue bath. Would it do any good?
<I wouldn't use it, I'm nervous with Methylene blue on puffers. They
are sensitive to that. I would go with medicines designed for Salt
Water fish.> Thank you.
Joebel J. Sorioso
<Good luck. -Magnus>
- Catching a Devilish Damsel -
WWM Team
My blue devil has turned very nasty now that he is an adult (even more so than
what I was willing to except before buying him). it's so bad some of
my other fish will not come out of the live rock. I really want to
return him but I can't get to him with a net with all the LR I have. I
even tried rearranging the rock but he just picked up his old habits. what
can I do? <I'd try baiting a barbless hook - this actually works better than
you might think.>
thanks, your site has really helped me with this great hobby for the past 2
years.
BTW, when does the second volume of the invert series come out? <Well, I'm
not as in tune with the process on this book as I was on the last one, but I get
the impression it should be ready sometime in the Summer, perhaps early
Fall.>
Mark
<Cheers, J -- >
Costa Rica Collecting
WWM Crew-
<I say a greeting>
I am going to be visiting Costa Rica for the first time in a couple of weeks. I have heard that I will love it! Anyway, have any of you been
there and brought anything back with you (fish, hermits, cucumbers, sea stars,
etc. - NOT coral)?
<I have been there a few times but have never bought live animals back>
Does the Costa Rican government have any restrictions on small amounts of livestock for personal use?
<Mmm, I would have to "ask them">
I went to the Cook Islands last year, met Chip Boyle and brought quite a few fish
back with me as well as the first blue Linckia that has ever lived.
<I have visited with Chip and Alice in Roratonga as well. Very nice folks>
I had no problems at all. BTW, used Kordon's breathable bags for most of the livestock - more than 24hrs in a bag with nothing but water and no
losses (this included some ventralis Anthias)! I wish the industry would notice these bags - I have used them a lot in my travels and they
always seem to work well.
<Too much money, too small... too flimsy to be made larger>
Also, do you know of any collectors in San Jose I could visit? Thanks in advance,
<There are none as far as I'm aware... perhaps while you are there you can look into their existence... maybe try the Guanacaste area>
John Boe
<Bob Fenner>
- Stop Chasing that Fish Around... -
Please help... I'm in desperate need of your assistance. The tang
has ick and I can't get it out of the tank ,around and around we go. I
have a reef system and do water changes per your advise. What do I do? I
feel that I'm causing more stress to fish chasing him around than the ick.
<You're quite right about that.> Got any ideas? <Yeah, but you may not
like it. I think you need to drain the tank - not completely, but enough to
remove one of the degrees of freedom your fish is accustomed to. I've had to do
this myself, and it's not exactly fun but sometimes there just aren't many other
options. Get hold of a 1" flexible hose or drain line and a couple of
garbage cans - I had to use three... drain down the tank to a couple of inches,
net the fish into a bucket and refill the tank. Treat the fish after the tank
has been refilled. Make sure you get the one inch hose so that you can empty the
tank quickly; it will be over before you know it.>
Valerie
<Cheers, J -- >
Fish collecting business
Hi,
I have been in search on information about a new business I have in mind and
since I found your website I have been able to find a lot of valuable information.
I will planning on starting a fish collecting business in west Africa. I know I
am faced with a lot of challenges. My plan is to setup my facility, begin
collection and have the facility running for a few months before I start
sourcing wholesalers.
<Actually, I would start this last right now. A very good idea to "go to
this step" now in determining who you will sell to, what they are willing
to pay, how they want to and can be shipped to (airfreight carriers, CITES,
Customs, forwarders...), concurrent with your giving them some idea of what you
have available. It may well be that these same folks can/will help you in
gathering tools, materials, maybe even personnel to build out your collecting
station and gear for shipping livestock>
I am also thinking of breeding some of the local species and hoping that down
the road I will be able to rely more on aquaculture for fish I supply.
<... this is an entirely different business... much time, facilities, many
hours involved in making a go... Do you have partner/s in this endeavor already?
You will need at least one if you intend to do both collecting and aquaculture,
plus employees>
Well my question is a business like this still viable in today pet industry and
would it be difficult to find wholesalers willing to buy.
<Depends on what you have, can get, the pricing AND airfreight cost and
availability... and even if your country's government will allow it. Do you know
of existing businesses of your type that are in operation currently? I strongly
encourage your talking with, visiting them... even working with/for them for a
while>
Is there any article that will answer some of the questions I might have.
Thanks
Dayjee
<Welcome to our industry. I can and will help you if you'd like. By answering
your general queries, introducing you about to some of the players in
international markets. At this point, do you have a good idea of what sorts of
livestock you will have available, in what numbers (sustainably)... how you're
going to hold and ship them... to which countries? Bob Fenner>
Re: fish collecting business
Hi Bob
Thanks for your response. I will appreciate any help I can get. I intend to
sell a wide range of freshwater species (cichlids, catfish, killifish, barbs,
Mormyrids Distichodus etc.). I still need to gather my information on the
logistics but I guess the best way will be directly contact the wholesalers as
you
suggested.
<Yes>
I have a lot of experience in various aspects of fish keeping. It
will be very nice to get some help building my collection station but knowing
that I have established a ready market will be a big motivation.
<Agreed>
I am pretty comfortable with putting together a station having worked on and
built several custom systems. My intention is to start with a 2000 gallon
holding system excluding quarantine and hospital tanks and leaving room for
growth
and expansion. I am currently based in the US so I intend to concentrate on the
American market for now to allow better supervision. I am not sure of what
numbers I will be able to hold at present. I intend to have about
500gallons in
2-5gallon holding tanks and the rest of the tanks ranging for 10- 200gallons.
I Also hope to setup a few large concrete tanks
I am not ready for aquaculture at present but I always wondered why with the
ease of breeding certain fish species there is not more emphasis on
aquaculture of aquarium fish.
<That eventually comes vis a vis economic incentives with all species>
I guess with more education I will understand why. I spoke
to a friend who has several ponds setup for catfish which he sells for about
$1 after six month for food. I believe that this space could be better used
for aquarium fish culture.
I look forward to getting some help from you with a few people I could talk
to.
Thanks
Dayjee
<Real good. I will be here. Bob Fenner>
Cutting Tang Spurs
Good day.
This is the first time I have written you with a question so please forgive if I
am breaking any cardinal rules. By the way, great site. Lip service aside, I
will keep my first question to you brief.
<Okay. Fire away>
Is the practice of cutting the "spurs" off of tangs at all inhumane in
order to prevent them from injuring other fish and is there a right and wrong
way to go about doing this? (How short does it need to be cut and will it grow
back?)
Thanks in advance,
Kelly
<Good question (at least it is inspiring thought in this responder... who has
cut back many "tangs" in the process of Acanthurid collection in the
wild). I don't consider it "reasonable" to snip these sharp caudal
peduncle processes in captivity for the purpose you mention... Too much damage,
too little gain... and they "do grow back" quite quickly (weeks to a
few months). The only practical "clipping" rationale is to prevent
damage to the collector, other fishes in holding through the "chain of
custody" to e/retailers IMO... There are two principal technologies
employed to snip back either the movable or permanently extended spurs of the
family... My fave is the use of large, sharp/newer "fingernail
clippers", and the other is the use of specialized scissors used ostensibly
for the same purpose. Each fish is held firmly with thumb on one side, other
fingers of the same hand facing along the top, toward the back (to keep the
sharp dorsal fin spines down, prevent the specimen from "wiggling
free", with the fish out of water (except some larger Naso species are
clipped underwater... as they can be dangerous in the meanwhile in the
decompression bucket), and the spines snipped near their base (an eighth or so
of an inch back from the "quick/origin"). Bob Fenner>
Belize
Dear Mr. Fenner,
I hope that this gets
through to you withy this address.
<Yes. Hello>
I am a Canadian who has
been involved in importing and
distributing marine fish and organisms for many years in a relatively
small way. I have also done some collecting in the Caribbean, again in a
small way, usually while visiting with a supplier.
<A way I like to spend time, get to know folks as well>
As I near retirement age, I have an interest
in doing more
collecting on a small commercial basis and export to several regular
customers. I have been looking at Belize as an
option, and through
gleanings from wetwebmedia, understand that you have been involved in the
Belize scene in the past. I would appreciate any comments or suggestions
that you may have with regards to the current and future situation, and
your opinion on the feasibility of involving myself in a small way.
<It's been a few years since my last visit there, but I do hope/trust Mr.
Harry Reeves is still about and at the collection/export of marine livestock
still. Do inquire of him if/when contacting fisheries folks there re the
possibility of joining the trade. Five years back or so there were only three
license holders involved in ornamental aquatics... and not that much at that...
with a HUGE resource (second largest barrier reef on this planet)... and MUCH
good work done by Canadians there... roads, land surveyed, a good deal of
"snow bird" population...>
I understand that there is at
least one organization operating
there and am told that there are many restrictions regarding quotas,
permits etc. and I am sure that there are logistical problems as well .
<We visited with the fisheries/resource management agencies in Belize City re
these issues... not insurmountable>
I would welcome any input that you may
have, and look foreword to
your response. Keep up the good work that you and the crew are doing.
Respectfully,
Grant
Armstrong
<Really, not just best, but only way of making progress on information,
permits... and gaining insight as to whether you're going to like living there
(a very nice, civilized place except for the old capital and San Pedro on
Ambergris IMO) is to go there, stay a few weeks. Bob Fenner>
Sohal tang and hook
Thanks for your response. We tried to get him out with a small barbless hook
with a piece of shrimp on it. Sure it worked, but the worst happened. He
pulled the hook off the line.<you must of not tied a correct fisherman's knot
lol>
He immediately went to the back of the rock.
It looked like from the front of the tank that the hook was sticking out his
cheek about a half inch back from his mouth.<ewww...it will rust off
eventually. or it should>
A few minutes later he was back
out swimming around with no hook showing. He had a little tear on the top
inside of his lip.<should heal> What are the odds that he was able to spit
it out or
would he have swallowed it? What would be the repercussions if he swallowed
it?<it will eventually rust> Would I have to worry about such a small hook
being in the water with my
size tank if he did spit it out?<I doubt it> I have a pretty open area
behind the rock
to look in the sand and I looked for a long time and haven't been able to
find it in the sand. I appreciate your help again, Thanks Ian <I would just
continue to try to
capture the little bugger, I wouldn't be too concerned about the hook, IanB>
Collecting large fish
I may have the opportunity to go on a collecting trip later this year. I
am
interested in collecting some various small fish and hopefully about 3 or 4
medium/large fish (12-20") for a quite large aquarium I have. The
small
fish shouldn't be a problem, but I'm concerned about the larger ones. It
may be difficult for me to fast the fish prior to transporting them. The
transport time shouldn't exceed a 30 hour drive. I have a few
ideas on
transporting, but I need to get some idea of how much waste these fish will
produce.
<Depends on species mostly...>
I can either box/bag them up individually or bring a 75gal
portable tank.
<I would move them in large "coolers", in the dark>
My idea is to put the three large fish together and either
run a power head or inject pure 02 if need be.
<Look into car-battery (12 v) continuous duty air pumps... and incorporate
ammonia-absorbing media in the system/s>
I would also test the water
every few hours and add Amquel to keep the ammonia under control.
<Amquel by itself will not sequester enough of the ammonia. Count on at least
one good (50% percent) water change, and haul the water with you>
If I
split them up I won't be able to use the powerhead/02 setup.
<If you use pressurized oxygen, make sure to vent the car... dangerous>
Maybe I should
also plan on adjusting the pH and doing a partial water change along the
way.
<Yes. Simple sodium bicarbonate will do as a buffer>
Any suggestions or comments would be helpful. I have
found a great
deal of info on transporting fish, but with the larger fish it seems like it
will be much harder.
<It is, but is done every day (mainly for public aquariums and large private
systems. Bob Fenner>
john
Collecting Large Fish II - 8/11/03
Thanks for the fast response.
<Anthony Calfo with the follow-up... Bob's away in Indo for several weeks>
Your thoughts are pretty much in line with what I was thinking. You
mentioned a ammonia absorbing media. Can you
suggest anything? The only media I have found can only work in
freshwater.
<I do believe he was referring to zeolite>
I have moved large fish before, but never this distance. I usually
run an inverter and air pump/stone for my several hour moves. This
would definitely be much easier than running an oxygen reactor and injecting
pure 02, but in the confined space I am fearing that my DO will be too low for
that length of travel time. John
<if the species you are moving are not sensitive to organic dyes... do
consider adding a small amount of Methylene blue to increase O2
solubility/uptake and act as a mild anti-microbial. Best regards, Anthony>
Catching fish in a reef tank (8-6-03)
Ok... I'm clueless on this one... are there any tricks for taking fish out
of a reef tank?
It seems to be impossible to catch them with a net (90 gallon tank) as they
always find a safe place...
then again I don't want to damage the corals and other things... is there any
trick to this, or do I have to pull all my corals and live rock out of the tank
to catch a fish? :-( <Try feeding then quickly put the net in to corner them
if you haven’t already tried that. Another trick that sometimes
works is take a small BARBLESS hook with bait and go fishing in your aquarium. Also
try posting on one of the many marine message boards like the one on WWM or
reefcentral.com and find out other peoples tricks. Cody>
Thank you,
Luke
Extracting a Grouper
Kevin,
Any tips on getting the grouper out.
<If the fish is friendly enough to you, try a clear container to capture it.
Other methods include using 2 nets (one held by another person), netting while
feeding, and using a barbless hook. For a grouper, the barbless hook idea may
work great! -Kevin>
Methods of capturing tropical fish under scrutiny By Alexander Lane NEWHOUSE
NEWS SERVICE June 25, 2003
"Finding Nemo," the hit Disney movie about a tropical fish
desperate to escape from a dentist's aquarium, preaches against everything from
overprotective fathers to boats with trawls that catch too many innocent
by-swimmers. It also lectures the growing subculture of saltwater aquarium
keepers. The movie portrays the capturing of fish and other creatures from coral
reefs – the primary means of supplying saltwater aquariums – as cruel and
destructive. In a terrifying scene, a diver nets young Nemo from his reef. The
tiny clownfish winds up in a saltwater tank and meets Gill, a crusty old
angelfish who was also born in the ocean. The two spend their time in the glass
prison concocting elaborate escape schemes. "Since the reviews first
started, that's all the reefers have been talking about," said Philip
Levanda of Nutley, N.J., a 27-year-old engineer and coral reef keeper.
Intentionally or not, Disney has dived into the hottest issue in the world of
tropical fish-keeping. Pet stores are filled with fish, corals, anemones and
other creatures ripped from depleted coral reefs, often after having been
stunned by a squirt of cyanide. Reef-enthusiasts are trying to stem the
practice. A Hawaii-based group is struggling to start a stamp-of-approval
program for retailers who say their creatures have been tank-bred or
"ethically captured." Nine-year-old Alexander Gould, the voice of
Nemo, has signed on as the group's spokesman. As word spreads of the industry's
destructive practices, some fish-keepers are swearing off mass-market pet
stores, instead trading their own colorful coral fragments in clubs popping up
across the country and seeking out eco-minded fish suppliers. "When I first
started out, I didn't know about the cyanide and the depletion," Levanda
said. "Lately, I've been watching who I buy from and where they're getting
it from." Levanda said he trades with other expert hobbyists and buys from
Internet providers who advertise ethical collection. Although the movie might
help raise awareness about the environmental hazards of scavenging coral reefs
for exotic fish, it also has generated interest in clownfish as lovable pets.
"I kind of have the sense that kids want to set up an aquarium to have Nemo
at home," said Fernando Nosratpour, an assistant curator of the Birch
Aquarium at the Scripps Institution of Oceanography. At the Birch Aquarium,
which has more than 35 fish exhibits, some fish are bred in captivity and others
are captured in the wild. Nosratpour said Birch officials don't associate with
anyone who captures fish in unethical ways, such as the cyanide squirt. A
spokesman for Petco, the Sorrento Valley-based national pet-supply chain, said
many people who want to buy clownfish don't understand the time, effort and
money involved in caring for these saltwater fish. "It's not an impulse
buy," spokesman Shawn Underwood said. He said most of the fish sold at
Petco are bred in captivity. Petco buys some exotic saltwater fish from
wholesalers who catch them in the wild. All of the company's clownfish are
captive-bred in Florida. Aquarium-keeping has been around since the mid-1800s,
but only in the past 12 years or so has the average home hobbyist been able to
maintain a miniature coral reef. Advances in science's understanding of ocean
chemistry have enabled anyone willing to spend several hundred dollars to create
their own tropical ecosystem. Aquarium owners can buy rock chiseled off reefs
from places such as Fiji, the Philippines and Indonesia that is crawling with
bacteria to digest harmful nitrogen and turn it into oxygen. Hermit crabs and
starfish scour the sand, filtering out fish waste, with mechanical protein
skimmers taking up the slack. Powerful halogen lights feed photosynthetic
corals. Aquarists treat their water with everything from synthetic salt to
calcium supplements. Between equipment and creatures, experts say
aquarium-keeping has exploded into a $500 million industry. Although statistics
are not methodically compiled, about 10 million marine specimens were sold in
U.S. pet stores at an average price of $10 in 1995, according to a survey by the
American Marinelife Dealers Association. Coral reefs represent about 1 percent
of the ocean, yet 25 percent of all marine species rely on them for some element
of their life span, such as spawning or feeding. One area of Hawaii known as the
Gold Coast – thanks to the schools of yellow tangs that once populated its
reef, tinting the water the color of sunshine – lost nearly all of the
graceful tropical fish, an aquarium favorite for their beauty and algae-eating
skills. Corals themselves – tiny animals whose colonies can take the forms of
everything from branching trees to pipe organs to neon-green brains – are
relatively easy to propagate in captivity. Hobbyists can simply cut off a
fragment of a friend's specimen, glue it to a rock and watch it grow. But many
are broken off reefs and sold by stores. Tropical fish are more difficult to
propagate. Despite major advances in the captive breeding of clownfish – the
most popular aquarium fish – many fish larvae will not survive in captivity.
Only about 2 percent of fish sold in pet stores are bred in captivity, according
to the Hawaii-based Marine Aquarium Council. The council has created a
certification program for nondestructive fish collectors, middlemen and
retailers, but the effort is in its infancy. The group approves of collecting
live fish, as long as it is done humanely drugs and does not exhaust the local
population of a species. "The reality is this trade will be based on
wild-caught fish for a long time to come. The need is to fix it," said Paul
Holthus, the council's executive director. Some ardent reef watchers, such as
environmental law professor Howard Latin of Rutgers University in New Jersey,
believe the Marine Aquarium Council does not go far enough. "Like
narcotics, it's never going to be solved by imposing measures in poor
countries," Latin said. "The problem has to be solved by eliminating
the demand or tolerance in larger countries, and the United States is by far the
largest importer of aquarium fish."
Aquarium Trade practices
To Whom It May Concern:
<Hello Glen>
I have been looking around your site and have found some very interesting
information regarding the aquarium trade. I have found some great information
about the set-up of retail outlets but none on collecting methods, handling,
storage and export procedures etc..
<We have a few general pieces posted on techniques. Take a read starting
here: http://www.wetwebmedia.com/marcoll.htm
and look over the linked articles, FAQs (in blue, above) there>
I am in PNG and am about to begin collecting and trading marine aquaria and am
looking to gain as much information as possible. I’ve emailed various people
seeking information including the MAC ( who have been of no help) and still have
not found much information.
<There are a couple of very dated, though useful printed works that detail
S.O.Practices... but am very strong on suggesting you travel about, observe
others in the trade for input here>
I am totally committed to sustainable practices and want to find out as much
information as possible about practical implementations.
Any information you can help me with would be greatly appreciated.
Thank-you Glen Butler
<Will you build a holding facility there? Who is it you intend to ship to and
through? Perhaps others in the trade can assist you as well. Am cc'ing Chris
Buerner of Quality Marine here for his help as well. Bob Fenner>
Denver visit, cyanide use
Bob,
I was at your talk yesterday at Marine Showcase in Colorado and wanted to thank
you for coming out, it was great and good job.
I wanted to ask you if you saw any improvements in the current situation with
Cyanide or do you see it as something that is going to continue to hurt the
trade and ultimately put a stop to it.
<Much to say here... have thought, now for decades that such a
self-defeating, destructive practice would be self-limiting... I do see the
countries in Asia finally putting a stop to poison fish-collecting practices...
much the same as folks in southern Africa nations are curtailing poaching in
park/reserves... by extreme force. Who knows when such drastic means will take
place, or how quickly/thoroughly they will abate such activity. Don't similarly
know the damning effects of the various powers that be will have on the
restriction of the trade... The hobby is such a minor influence, I don't think
it bears notice compared with other more significant sources of mortality,
issues>
Also, since you said you are out of the industry, what are you doing now?? Just
curious.
<Oh, tax returns indicate I am a "content provider"... as far as
involvement in our interest I write, sell pix, consult, give talks...>
Have a great week and thanks again.
John McCoy
<Thank you for writing, your kind words, and probing questions. Bob
Fenner>
Tank Raised Or Wild Caught? 3/17/03
Hi,<Hey there! Phil here!>
You might think this is a weird questions but anyhow it must not be the first
time. I was wondering if a wild caught fish could be less happy or more prone to
disease than a tank born and raised fish.< See here for more info...
www.wetwebmedia.com/FWSubWebIndex/aquaculture. tm &
www.wetwebmedia.com/marcoll.htm >
Thanks<Hope this helps! Phil>
Gulf Angels
Bob:
<Howdy, morning>
I wanted to get your thoughts on this with regards to practicality,
methodology and even ethical considerations:
I reside in Pensacola, FL. Near the beach, and some of my SCUBA diving
buddies have become interested in my tank. During one of their visits
and
upon seeing my Rock Beauty proclaimed, "Hey, we have to shove those th9ings
away from us there's so many of them down there where we dive!" To
which I
replied, "Well that's about $100 worth of fish right there." Well
of course
what ensued was brainstorming as to how they could collect a few specimens
and sell them locally. They also have seen Lionfish near Tampa Bay
supposedly. Anyway, it would seem a simple thing to do to collect one
or
two at a time and sell them for a decent price (setting up a dedicated
quarantine tank for this of course - not putting them in mine) thoughts?
<Well, a few things... the Rock Beauty doesn't sell as well as other Angels
found there. Please see: http://www.wetwebmedia.com/marine/fishes/angels/bestmarangs.htm
as it doesn't fare as well in captivity... and the "diver pay" for
this species is only about ten dollars... and you'll need a place to
"hold" them (individually) for a while. Please see here re capture techniques:
http://www.wetwebmedia.com/collmarsdvg.htm
and the linked files (in blue, above) re barrier and hand-net collection. You
will likely need these tools... and licensing from the State. Bob Fenner>
Re: Gulf Angels
Bob:
"Licensing"? Aye, there's the rub.
<Agreed>
Well I guess a visit to the fisheries
commission is in order then. By the way - further investigations have
found
the Queen Angels are also really common here. I wasn't aware there
were
guidelines for "diver's pay" my friends would get the for free and
just
expect some of the profits.
|