Re: Advice of keeping Elysia in captivity

September 17, 2001
From: Kathe R. Jensen

Note added 30 May 2006: This may also refer to Elysia clarki, a new species which was previously considered a colour form of E. crispata

Dear Kathleen and Bill,
When I was working in Florida in Kerry Clark's lab. many years ago, we regularly kept what was then Tridachia crispata in our aquaria. They were regular 10 gallon sub-gravel filtered and aerated aquaria with a number of green algae, usually a couple of species of Caulerpa, but sometimes others as well. Illumination was from "Gro-lux"-lights. The animals were collected in the Florida Keys. I think the major problem is that they produce toxic chemicals in the mucus (which is continually secreted from the body surface), so you cannot keep too many adult specimens in the same tank. Juveniles look like typical Elysia [see Jeff Zimmerman's photos] and feed on Caulerpa verticillata. So if you can get one or two specimens which will produce eggs, and you can also supply some Caulerpa verticillata (or possibly other Caulerpa with very thin filaments), you should be able to maintain your own supply. They have lecithotrophic development, meaning that the veligers do not swim very much, and they do not need to feed before settling.

Good luck with your project - and please keep us informed about your results.

Greetings,
Kathe

jensen@ait.ac.th

Jensen, K.R., 2001 (Sep 17) Re: Advice of keeping Elysia in captivity. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/5275

Thanks Kathe,
Bill Rudman.

Rudman, W.B., 2001 (Sep 17). Comment on Re: Advice of keeping Elysia in captivity by Kathe R. Jensen. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/5275

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