The effect of raising conditions on behavior of juvenile roach <Emphasis Type="Italic">Rutilus rutilus</Emphasis> (L.) (Cyprinidae) |
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Authors: | E S Smirnova |
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Institution: | (1) A.N. Severtsov Institute of Ecology & Evolution, Russian Academy of Sciences, Leninskii prospect 33, Moscow, 119071, Russia |
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Abstract: | The behavior of juvenile 4.5-month-old roach Rutilus rutilus (L.) raised (starting on the 12th day after hatching) at different levels of habitat informational diversity (feeding with
live and immobilized zooplankton and benthos, the presence of a predator, and a constant water flow in the nursery aquarium)
was studied. The fish’s exploratory behavior and locomotor activity were tested in a circular chamber; swimming activity was
tested in a hydrodynamic conduit. It was experimentally shown that juvenile roach raised in the presence of a predator differed
significantly (p < 0.05) in regards to behavioral characteristics from the fries raised in a water current and in conditions of a high level
of environmental deprivation. |
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Keywords: | |
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