Light intensity, prey detection and foraging mechanisms of age 0 year yellow perch

The ability of age‐0 year yellow perch Perca flavescans to detect prey using visual and mechano‐sensory input was examined during laboratory feeding trials at varying light intensities. Perch were highly effective predators and captured Daphnia pulicaria with 94% overall foraging success at light le...

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Bibliographic Details
Published in:Journal of fish biology 2004-07, Vol.65 (1), p.195-205
Main Authors: Richmond, H. E., Hrabik, T. R., Mensinger, A. F.
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Biological and medical sciences
Daphnia pulicaria
foraging models
Fundamental and applied biological sciences. Psychology
lateral line
Perca flavescens
predator-prey
reactive distance
Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
vision
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Summary:The ability of age‐0 year yellow perch Perca flavescans to detect prey using visual and mechano‐sensory input was examined during laboratory feeding trials at varying light intensities. Perch were highly effective predators and captured Daphnia pulicaria with 94% overall foraging success at light levels ranging from 0 to 3400 lx. Maximum average reaction distances (5·0 ± 0·8 cm, mean ± s.e.) occurred in front of the fish at 3000 lx and significantly decreased as light intensities fell to
ISSN:0022-1112
1095-8649
DOI:10.1111/j.0022-1112.2004.00444.x