Visibility conditions and diel period affect small-scale spatio-temporal behaviour of pike Esox lucius in the absence of prey and conspecifics |
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Authors: | Nilsson P A Baktoft H Boel M Meier K Jacobsen L Rokkjaer E M Clausen T Skov C |
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Institution: | National Institute of Aquatic Resources (DTU‐Aqua), Technical University of Denmark, Vejls?vej 39, DK‐8600 Silkeborg, Denmark |
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Abstract: | Pike Esox lucius in the absence of prey and conspecifics were shown to have the highest habitat-change activity during dusk and to decrease preference for complex habitats in turbid water. As the behaviours indicate routine responses in the absence of behavioural interactions, E. lucius spatio-temporal distributions should be directly affected and thereby more easily assessed and avoided by prey, with potential consequences for encounter rates. |
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Keywords: | activity habitat choice piscivore predator turbidity |
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