Premium
The effect of light intensity on the drift of young‐of‐the‐year cyprinid fishes
Author(s) -
Reichard M.,
Jurajda P.,
Ondračková M.
Publication year - 2002
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.2002.tb01866.x
Subject(s) - biology , light intensity , intensity (physics) , displacement (psychology) , zoology , ecology , fishery , optics , physics , psychology , psychotherapist
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.