STRUCTURE OF THE SPAWNING FLOCK AND GROWTH RATES OF THE AZOV SEA ROACH ( <i>RUTILUS RUTILUS HECKELI</i> NORDMANN, 1840) IN THE EASTERN PART OF THE TAGANROG BAY
Some biological features of the Azov Sea roach in modern conditions are studied. The sex structure of spawning population during feeding and formation of feeding aggregations is analyzed. Age parameters, length dimensions and weight are statistically estimated, the main features of the processes of growth are described. Quantitative assessment of growth parameters is given, and Bertalanffy growth equation indexes are calculated. It is revealed, that the adaptation response on the high mortality rate of the Azov Sea roach population leads to generation of the fast growing and early maturing form with the shorter life cycle. The results of the analysis make it possible to draw a conclusion about adaptation efficiency during transformation of biological indicators of fish in terms of anthropogenic press, especially fishing.