New Issue Of AHABS Now Available, Focusing On Raising Invertbrate Larvae.

Ron Shimek · 10-15-2006, 06:23 PM

Hi Folks,

Shameless Plug - But it is a good product...

Aquarium Husbandry Articles By Subscription Is Now Available.
See here for details.
Issue 2
Main Article:
How To Get There From Here; Some Techniques For The Rearing Of Larval Invertebrates, 27 pp.

Secondary Articles:
The Animal as a Life Cycle – A Very Brief Introduction To Invertebrate Larvae As Illustrated With The Trochophore. 12 pp.
Reef Tank Plankton - A Partial Success For A Necessary Component. 9 pp.

If you have any questions contact me.

BrianPlankis · 10-15-2006, 06:38 PM

Purchased! Send it, send it!

Let me know if it didn't give you my email address.

Now I need to read some literature before I get your article, otherwise I know the literature won't get read

Brian

Ron Shimek · 10-16-2006, 05:50 AM

Hi Brian,

You should have it by now.

I hope you find it useful, I tried to put in a lot of information that is "understood" by invertebrate embryologists and larval biologist, but which never quite seems to surface in general articles.

CELACANTHr · 10-16-2006, 07:56 AM

Spectacular! I had a question about the article that some other people may have had also, so should I ask it here, or somewhere else?

Ron Shimek · 10-16-2006, 08:04 AM

Might as well ask it here.

CELACANTHr · 10-16-2006, 08:40 AM

Ok, why do you keep the brood stock seperated?

Ron Shimek · 10-16-2006, 09:16 AM

One separates the brood stock to prevent accidental spawnings. If you have been working for, say, a year to get the animals to spawn, it can ruin your whole month if they go accidentally whilst you are out shopping, walking the child, at the day job, etc. Also, if these are broadcast spawners, there are simply too many sperm produced in most spawnings that are confined in tanks. The old adage that only one sperm can enter an egg is false, and if the sperm concentration is too high, more than one sperm can enter an egg. This is a condition known as polyspermy, and it results in a dead embryo.

Bottom line is that you need the control that brood stock separation gives you.

CELACANTHr · 10-16-2006, 09:49 AM

ahhh! Thanks!

Ron Shimek · 10-16-2006, 10:05 AM

Hi,

The whole thing about breeding and raising these animals is about control. One accidental spawning in one's tank doesn't make one a breeder, it simply means the animals spawned for whatever reason. If you are proceding a logical and planned manner, you may work a year or more before seeing any results, and spawning should occur at a more-or-less predetermined time, so you don't want to lose control at what could be your "moment of glory."

For example, I am starting a project to spawn Fungia. I don't expect to see results for maybe 18 months or more. But, when I do expect the animals to spawn, I don't want it go prematurely because of having one animal trigger another when I am not present to do what I need to do to keep the embryos alive.

BrianPlankis · 11-06-2006, 10:10 AM

Hey guys,

I just want to recommend to everyone that you at least try one issue of Ron's AHABS, they are well written and have several of Ron's dry wit comments throughout. I am still reading the rearing of larval invertebrates one and there are many excellent tips! An excellent value for the price.

For anyone that is going to be interested in doing any of the breeding challenges in 2007, this should be required reading.

Brian