The effect of light intensity on the drift of young-of-the-year cyprinid fishes

Density, but not body size, of drifting young-of-the-year cyprinid fishes was negatively correlated with light intensity. As an ability to resist the water current develops gradually with size, the results support the view that drift in cyprinid fishes is a behavioural decision, triggered by light l...

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Bibliographic Details
Published in:Journal of fish biology 2002-10, Vol.61 (4), p.1063-1066
Main Authors: REICHARD, M, JURAJDA, P, ONDRACKOVA, M
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Animal and plant ecology
Animal, plant and microbial ecology
Animals
Biological and medical sciences
Cyprinidae
Demecology
Freshwater
Fundamental and applied biological sciences. Psychology
Vertebrata
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Summary:Density, but not body size, of drifting young-of-the-year cyprinid fishes was negatively correlated with light intensity. As an ability to resist the water current develops gradually with size, the results support the view that drift in cyprinid fishes is a behavioural decision, triggered by light level, rather than passive displacement of visually disoriented fishes. Copyright 2002 The Fisheries Society of the British Isles. Published by Elsevier Science Ltd. All rights reserved.
ISSN:0022-1112
1095-8649
DOI:10.1006/jfbi.2002.2116