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The results of hydroacoustic observations on roach in Lake Glubokoe in winter |
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| Authors: | D. S. Pavlov A. G. Gusar A. I. Pyanov A. N. Gorin |
| Affiliation: | (1) A. N. Severtsov Institute of Evolutionary Morphology and Ecology of Animals, USSR Academy of Sciences, Leninski Prospect 33, 117071 Moscow, USSR |
| Abstract: | This paper describes under-ice observations on the diurnal dynamics of the distribution and behaviour of roach in Lake Glubokoe in March, 1983, and in March, 1984. It presents data on the reactions of fish to external stimuli. Some factors influencing the distribution of fish in the winter period are discussed. |
| Keywords: | hydroacoustic instruments hydroacoustic observations distribution of roach pelagic zone shoals accumulations defensive reaction swimming activity Lake Glubokoe |
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