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- MakaleYalnız künye2025Scopus SJRQ3New Record of Two Dreissenid Species (Dreissena polymorpha gallandi and Dreissena caputlacus) in Kelkit Basin (NE Anatolia): Evaluation of Morphological Divergence Based on Altitude Using Statistical Tools
Kocabaş, Mehmet; Bozali, Nuri; Kocabaş, Filiz Kutluyer; Kara, Cemil; Gürlek, Mustafa Emre
Abstract: Non-indigenous species in an ecosystem increase the potential of novel ecological relationships and can dramatically affect community composition and ecosystem roles. This study examined the spatial distribution of Dreissena caputlacus and Dreissena polymorpha gallandi within the Kelkit Basin located in Northeastern Anatolia. A total of 75 sampling locations representing various habitats were surveyed in the Kelkit Basin. The presence of D. p. gallandi and D. caputlacus was identified for the first time in the basin. The effects of altitude on the population structure, geographic distribution, and shell traits of D. p. gallandi and D. caputlacus were also assessed in a range of ecosystems. The highest shell length (SL) for D. caputlacus was recorded at 566 m altitude with values of 25.58 ± 5.80 mm while the highest SL value for D. p. gallandi was 24.15 ± 5.13 mm at 610 m altitude. Principal Component Analysis (PCA) revealed a strong association among shell length (SL), shell height (SH), shell width (SW), and weight (W). In conclusion, the diverse altitudinal distribution of samples strengthened the evidence that shell features differ with changes in altitude.
- MakaleAçık Erişim2025First Record of Dreissena caputlacus (Schütt, 1993) and Dreissena polymorpha gallandi (Locard, 1893) in Çamlıgöze Dam Lake (Sivas, Türkiye) and Evaluation of Some Biometric Parameters; [Çamlıgöze Baraj Gölü'nde (Sivas, Türkiye) Dreissena caputlacus (Schütt, 1993) ve Dreissena polymorpha gallandi (Locard, 1893)'nin İlk Kaydı ve Bazı Biyometrik Parametrelerin Değerlendirilmesi]
Kara, Cemil; Kutluyer Kocabaş, Filiz; Kocabaş, Mehmet; Bozali, Nuri; Gürlek, Mustafa Emre
In this study, the presence and biometric characteristics of Dreissena caputlacus (Schütt, 1993) and Dreissena polymorpha gallandi (Locard, 1893) populations were determined in Çamlıgöze Dam Lake. Shell length (SL), shell height (SH), shell width (SW) data of individuals collected in the study area were used with a digital caliper; The weights of individuals (W) were determined using precision scales. The means of SL, SW, SH and W in D. caputlacus and D. polymorpha gallandi were determined as 22.66±4.33 and 30.03±3.17 mm, 15.88±4.16 and 14.54±1.46 mm; 13.37±2.85 and 14.51±1.41 mm; 94±1.12 and 3.29±0.95 g, respectively. According to principal component analysis, there was a strong relationship between SH, SW, SL and W for both species. For D. caputlacus and D. polymorpha gallandi, 82.283% and 94.502% of the total variance was explained by two principal components. D. caputlacus and D. polymorpha gallandi populations from Çamlıgöze Dam Lake were reported for the first time in this study.
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