Re: Feeding studies on Aplysia in Malaysia

July 20, 2007
From: Corvin Eidens

Concerning message #20078:

Some of the small ones are now almost 10 cm. We feed them with currently with Gracilaria. Do you know anyone who knows about Aplysia in Malaysia?

I found an egg mass two days ago and the Aplysia are mating a lot! Do they die after laying eggs? Can I raise them? I think it will be hard because of the planktonic larvae and the flow through system! And I need micro algae for feeding to them.
I tried to get in contact with Prof. Klussmann.Kolb from Germany. She wrote that nice article  Phylogeny of the Aplysiidae (Gastropoda, Opisthobranchia) with new aspects of the evolution of seahares and hopefully she can may help me.

Here are some more pics!

Best wishes,
Corvin

corvin@eidens.de

Eidens, C., 2007 (Jul 20) Re: Feeding studies on Aplysia in Malaysia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20249

Dear Corvin,
The upper photo is clearly of Aplysia dactylomela. If it is a photo of one of the juveniles you sent photos of before, it is a nice demonstration of growth in the species. Aplysia dactylomela has a thicker more leathery skin than many other species, including A. oculifera, which was the reason I was not 100% sure they were all A. oculifera in your earlier message. What I am not sure about now is the bottom photo - is it a photo from before of one of the juvenile A. dactylomela or another species?

So you definitely have A. oculifera and A. dactylomela. Hopefully they are not interbreeding or my reputation will be destroyed! It's possible they will breed for weeks or even months, but eventually, probably within a year, they will die.  I am sorry I can't suggest an expert on tropical species of Aplysia for you. I am sure Annette Klussmann-Kolb will help you if she can but I am not sure if her expertise extends to keeping generations alive in aquaria. All I know is that A. dactylomela seems to prefer partcular red algae [see message #9154]

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Jul 20). Comment on Re: Feeding studies on Aplysia in Malaysia by Corvin Eidens. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20249

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Aplysia dactylomela

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