Visibility as a factor in the copepod-planktivorous fish relationship

J. Rudi Strickler; Ava J. Udvadia; John Marino; Nick Radabaugh; Josh Ziarek; Ai Nihongi

doi:10.3989/scimar.2005.69s1111

Visibility as a factor in the copepod-planktivorous fish relationship

Authors

J. Rudi Strickler WATER Institute, University of Wisconsin
Ava J. Udvadia WATER Institute, University of Wisconsin
John Marino Department of Zoology, University of Wisconsin
Nick Radabaugh Department of Wildlife and Fisheries Sciences, South Dakota State University
Josh Ziarek WATER Institute, University of Wisconsin
Ai Nihongi WATER Institute, University of Wisconsin

DOI:

https://doi.org/10.3989/scimar.2005.69s1111

Keywords:

visibility, planktivorous fish, zooplankton, calanoid copepods, Daphnia, predator-prey relationship, temporal pattern recognition, random flow

Abstract

The question we treat in this contribution is whether or not planktivorous fish can use the motion pattern of planktonic copepods to distinguish these animals from other suspended particles in the water. A targeted overview of the predator-prey relationship is followed by a first report of experiments performed in our laboratory where fish selected between two virtual targets on a TV screen, each target showing a different swimming pattern. The results suggest that fish can perceive temporal visual patterns and select their preferred target after two to ten seconds observing the two moving targets. Implications of these preliminary results are discussed and hypotheses for further research formulated.

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Published

2005-06-30

How to Cite

Rudi Strickler J, Udvadia AJ, Marino J, Radabaugh N, Ziarek J, Nihongi A. Visibility as a factor in the copepod-planktivorous fish relationship. Sci. mar. [Internet]. 2005Jun.30 [cited 2025May1];69(S1):111-24. Available from: https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/298

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Issue

Vol. 69 No. S1 (2005)

Section

Articles

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