shell length

REGULARITIES OF THE RATIO OF THE SHELL LENGTH TO THE INDIVIDUAL WEIGHT OF MOLLUSKS FROM THE DREISSENA GENUS (DREISSENIDAE, BIVALVIA) IN THE VOLGOGRAD RESERVOIR

A regression analysis of the size and weight structure of the dreissenidae (D. bugensis and D. polymorpha) from the Volgograd reservoir was carried out. The power-dependence parameters in the resulting equation are different for the two mollusk species studied (W = 0.036L3.33 for D. bugensis and W = 0.064L3.32 for D. polymorpha). The established regression relationship between the individual body weight (W) and the mollusk’s shell length (L) has a high correlation degree: R2 = 0.96 for p = 0.01.