Re: Elysia feeding

February 27, 2004
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 Skip & Bill,
I was very excited to read Skip's message. [#12310]:
When I worked in Florida we raised E. crispata on Caulerpa verticillata, which also has very fine filaments. That was the only alga they would eat (I cannot remember if we tried Bryopsis - we never had a lot of it, and when we did, we usually also had a sacoglossan that needed it). We did not see the adults feed, but we detected growth on several algae - but I would have to find my old notebooks to see which algae we actually tried. I think Halimeda spp. were included.

Maybe this is the right place to mention that as far as I know, Derbesia and Bryopsis are very closely related, but in Bryopsis the macrothallus is the gametophyte and in Derbesia the macrothallus is the sporophyte.

It would be interesting to see whether the diet of the juveniles influences the diet of the adults, i.e. if juveniles are fed only Bryopsis, will they be more diet specific as adults than if they have been feeding on different things as juveniles.

I look forwards to seeing the publications.
Cheers,
Kathe

krjensen@zmuc.ku.dk

Jensen, K.R., 2004 (Feb 27) Re: Elysia feeding. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/12319

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