The First Record of Dreissena polymorpha (Pallas, 1771) and Unio pictorum (Linnaeus, 1758) in Demirköprü Dam Lake and Evaluation of Some Biometric Parameters

Abstract

Some biometric characteristics of Dreissena polymorpha (Pallas, 1771) and Unio pictorum (Linnaeus, 1758) were studied in Demirköprü Dam Lake, Manisa province. Measurements of individuals collected in the study area were performed using calipers and precision balances, and weight (g), length (mm), width (mm), height (mm) data were obtained. It was determined for D. polymorpha and U. pictorum species as for shell length 30.48±5.40 and 61.02±7.78 for shell length, 14.48±2.33 ve 32.01±4.48 mm for shell width, 14.72±3.02 ve 17.87±3.43 mm for shell height, and 5.19±0.94 ve 23.08±2.90 g g for weight. According to principal components analysis, there was a strong relationship between shell height, shell width, shell length, and weight for both species. It was shown that 97.913% and 94.379% of the total variance was explained by the two components for U. pictorum and D. polymorpha. D. polymorpha and U. pictorum species has been reported for the first time from the region with this study.

Keywords

• biometric. demirköprü dam lake
• dreissena polymorpha
• unio pictorum