Regularities of the Shell Length to the Individual Weight Ratio in Mollusks of the Genus Dreissena (Dreissenidae, Bivalvia) in Volgograd Reservoir


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Regression analysis of the size and weight structure of dreissenids (D. bugensis and D. polymorpha) from the Volgograd Reservoir has been carried out. The power-dependence parameters in the resulting equation are different for the two studied mollusk species (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 shell length of the mollusk (L) has a high degree of correlation R2 = 0.96 at a significance level of p = 0.01. The results can be used for reconstructing the individual weight of mollusks from the shell length during trophological studies in Lower Volga reservoirs.

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E. Filinova

Berg State Research Institute of Lake and River Fisheries, Saratov Branch

编辑信件的主要联系方式.
Email: e.filinowa@yandex.ru
俄罗斯联邦, Saratov, 410002

V. Kolozin

Berg State Research Institute of Lake and River Fisheries, Saratov Branch

Email: e.filinowa@yandex.ru
俄罗斯联邦, Saratov, 410002

Yu. Malinina

Berg State Research Institute of Lake and River Fisheries, Saratov Branch

Email: e.filinowa@yandex.ru
俄罗斯联邦, Saratov, 410002

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