Histological picture of new formations at fries of fishes of the Middle and Upper Volga

For period 1996-2009 at fries of fishes of the Middle and Upper Volga discovered great number of different types of morphological anomalies. A large stake among them is made by such violations as saturated a pigment new formations near eyeballs, unsaturated a pigment tumours in area of eyes and on trunk. Rarer there are saturated pigment tumours of covers of body and into myofibres. In this research a dynamics over of met of similar violations is brought at fries of carp fishes, and also a histological picture and original illustrations of these anomalies is first described.