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Foraging success of juvenile pike Esox lucius depends on visual conditions and prey pigmentation

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Author

Summary, in English

Young-of-the-year pike Esox lucius foraging on copepods experienced different foraging success depending on prey pigmentation in water visually degraded by brown colouration or algae. Both attack rate and prey consumption rate were higher for E. lucius foraging on transparent prey in brown water, whereas the opposite was true in algal turbid water. Pigments in copepod prey may have a cryptic function in brown water instead of a photo-protective function even if prey-size selectivity was stronger than selection based on pigmentation in juvenile E. lucius. (C) 2011 The Authors Journal of Fish Biology (C) 2011 The Fisheries Society of the British Isles

Publishing year

2011

Language

English

Pages

290-297

Publication/Series

Journal of Fish Biology

Volume

79

Issue

1

Document type

Journal article

Publisher

Wiley-Blackwell

Topic

  • Ecology

Keywords

  • background contrast
  • cryptic pigmentation
  • turbidity
  • vision
  • water
  • colour

Status

Published

Research group

  • Aquatic Ecology

ISBN/ISSN/Other

  • ISSN: 0022-1112