Food of Dutch Geitodoris planata

August 30, 2001
From: Peter H. van Bragt

Hello Bill
Yesterday I received the final determination of the sponge on which our local Geitodoris planata feeds. Rob van Soest confirmed that it is Mycale micracanthoxea Buizer & Van Soest, 1977.

As I mentioned before almost all G. planata are found between 2 and 12 meters. This is in line with the local distribution of this sponge which was until now not found below 10 m. in the Dutch coastal waters. However last week I found one specimen at 15 m. and another one at almost 21 m. depth. Both were also feeding on a similar sponge; pale yellow, very thin encrusting on oysters. I assume this is also the same Mycale. With this observation the presence of this nudibranchs helps us also with extending our knowledge on the distribution of a sponge in the Netherlands.

With best regards and dutch greetings
Peter

vanbragt.phjm@hsbrabant.nl

van Bragt, P.H., 2001 (Aug 30) Food of Dutch Geitodoris planata. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/5170

Thanks Peter,
Bill Rudman

Factsheet

Geitodoris planata

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