Behaviour and distribution of warm-requiring species juvenile fish in thermogradient conditions in summer and winter seasons of year

In summer and winter seasons of a year the value of final preferred temperature in the juvenile carp, silver crucian, bream and Amur sleeper were defined. The most thermophilic species - carp, silver crucian and Amur sleeper - in both seasons firmly selected the same level of final preferred temperature. On the contrary, it was revealed that bream fingerlings in different seasons of year prefer two vastly differing levels of temperature.