Aplysia dactylomela from Croatia

August 28, 2006
From: Tom Turk

Dear Bill,

Here is a photo of Aplysia dactylomela taken on a day dive on the rocky bottom covered with algae at the depth of approx 10 m. Location island Susac, Croatia, Adriatic sea. It is interesting that the specimen was found crawling over the Caulerpa racemosa also a lessepsian species in Mediterranean. Is it possible that the slug actually feed on Caulerpa?

Locality: Island Sušac, Adriatic sea, 10-12 m, Croatia, Adriatic, July, 2006, rocky gottom covered with algae. Length: 5, 8 and 20 cm. Photographer: Borut Furlan.

Best regards,
Tom Turk

tom.turk@bf.uni-lj.si

Turk, T., 2006 (Aug 28) Aplysia dactylomela from Croatia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17598

Dear Tom,
As I have mentioned in earlier messages I am not sure whether A. dactylomela is a lessepsian species or a late arrival from the Atlantic. Considering it has been known from the Canary Islands for many years, an Atlantic origin would seems as likely as an Indian Ocean origin.

Concerning feeding on Caulerpa. I don't know of any records of any species of Aplysia feeding on Caulerpa and considering the vast beds of various Caulerpa species which occur in various parts of the world, I would have thought someone would have noticed, especially when some Caulerpa have become pests.
Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Aug 28). Comment on Aplysia dactylomela from Croatia by Tom Turk. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17598

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Aplysia dactylomela

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