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Variation in search and predatory attack strategies of shark mackerel Grammatorcynus bicarinatus

Published online by Cambridge University Press:  25 June 2008

Peter J. Auster*
Affiliation:
National Undersea Research Center and Department of Marine Sciences, University of Connecticut at Avery Point, Groton, CT 06340, USA
*
Correspondence should be addressed to: Peter J. Auster National Undersea Research Center and Department of Marine SciencesUniversity of Connecticut at Avery PointGroton, CT 06340, USA email: [email protected]

Abstract

I observed shark mackerel demonstrating multiple search and attack strategies. Strategies were categorized as three distinct types: (1) a linear search by single or groups of fish along reef features; (2) ambush from a stationary position on the seafloor; and (3) ambush from resting schools of co-occurring predators. Together these strategies were consistent with both information-sharing and producer–scrounger models of group foraging and indicate significant flexibility in individual fish foraging behaviour based on proximate conditions.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 2008

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