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Title: Parental diets determine the embryonic fatty acid profile of the tropical nudibranch Aeolidiella stephanieae: the effect of eating bleached anemones
Author: Leal, Miguel Costa
Nunes, Cristóvão
Alexandre, Daniel
da Silva, Teresa Lopes
Reis, Alberto
Dinis, Maria Teresa
Calado, Ricardo
Keywords: Fatty acid profile 
Breeding pair 
Bleaching event 
Total darkness 
Cnidarian host 
Issue Date: 2012
Publisher: Springer
Abstract: Aeolidiella stephanieae is a stenophagous tropical nudibranch that feeds exclusively on glass anemones of the genus Aiptasia. These sea anemones usually harbour endosymbiotic photosynthetic dinoflagellates that contribute to the nutrition of their host by providing photosynthetates, such as fatty acids (FA). The present work determined the effect of parental diets on the FA profile of A. stephanieae embryos by feeding breeding pairs of this nudibranch with either symbiotic or aposymbiotic A. pallida. Contrasting FA profiles, namely in the levels of palmitic acid (16:0) and docosahexaenoic acid (DHA, 22:6n-3), were recorded for both parental diets and egg masses produced by nudibranchs eating either symbiotic or aposymbiotic A. pallida. Noteworthy effects of parental dietary FAs on egg masses were also observed, particularly for DHA, which is mainly synthetized by the endosymbionts of A. pallida. Additionally, the present study also highlights how bleaching events may promote cascading effects on the nutrition of marine species with a stenophagous diet, such as A. stephanieae.
Peer review: yes
DOI: 10.1007/s00227-012-1962-1
ISSN: 0025-3162
Appears in Collections:CESAM - Artigos
DBio - Artigos

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