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Visual predation by a marine cyclopoid copepod, Corycaeus anglicus

Published online by Cambridge University Press:  11 May 2009

M. Gophen  and
R.P. Harris
M. Gophen
Affiliation:
Kinneret Limnological Laboratory, P.O. Box 345, Tiberias, Israel
R.P. Harris
Affiliation:
The Laboratory, Marine Biological Association, Citadel Hill, Plymouth
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Extract

In an experimental study the cyclopoid copepod Corycaeus anglicus Lubbock was found to ingest Artemia nauplii at much higher rates (up to 15 times) in the light than in the dark. Maximal ingestion rates observed in the light represent daily rations of 70% and 66% of the body carbon for males and females respectively. From experimental observations together with studies of the ultrastructure of the photoreceptors it is suggested that Corycaeus can locate prey visually. This is in contrast to the majority of other copepods which use chemoreceptors and mechanoreceptors.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 61 , Issue 2 , May 1981 , pp. 391 - 399
Copyright
Copyright © Marine Biological Association of the United Kingdom 1981

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