A new technique for testing the eliciting effects of fish color patterns |
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Authors: | Donald R. Townsend Joseph A. McKenzie |
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Affiliation: | 1. Department of Biology, University of New Brunswick, E3B 5A3, Fredericton, New Brunswick, Canada
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Abstract: | This new technique provides an alternative to the use of stimulus fish with paint applied to their body surfaces or fish dummies for testing the eliciting effects of different color patterns. The stimulus fish are fitted with thin plastic suits, with the pattern to be tested painted on each suit. Small numbers of stimulus fish are required. They adjust readily to the suit and rarely show agitated movements during testing. Suited-up stimulus fish may better simulate the appearance of free-living conspecifics than dummy fish that show no breathing activity or unassisted swimming movements. At the same time, suited-up fish provide some variation in stimulus characteristics particularly relative to swimming movement. |
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