The sesterterpene variabilin as a fish-predation deterrent in the western Atlantic sponge Ircinia strobilina

The furanosesterterpene variabilin was identified in an unpalatable crude extract and proved to be a feeding deterrent when offered at 0.23% of artificial diet dry weight to reef fishes in field assays. The icthyodeterrent property of variabilin was expressed when food pellets for the palatability a...

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Bibliographic Details
Published in:Journal of chemical ecology 1999-10, Vol.25 (10), p.2247-2254
Main Authors: DE A. EPIFANIO, R, GABRIEL, R, MARTINS, D. L, MURICY, G
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Animals
Autoecology
Biological and medical sciences
Coral reefs
Fish
Fundamental and applied biological sciences. Psychology
furanosesterterpene
Heat treatment
Ircinia strobilina
Marine
Pisces
Porifera
Predation
Protozoa. Invertebrata
variabilin
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Summary:The furanosesterterpene variabilin was identified in an unpalatable crude extract and proved to be a feeding deterrent when offered at 0.23% of artificial diet dry weight to reef fishes in field assays. The icthyodeterrent property of variabilin was expressed when food pellets for the palatability assays were made with calcium alginate, but not carrageenan. Variabilin probably failed to show deterrent activity in the carageenan matrix because of decomposition during the necessary heat treatment.[PUBLICATION ABSTRACT]
ISSN:0098-0331
1573-1561
DOI:10.1023/A:1020865606047