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Determination of regional changes in morphological characteristics of perch (Perca fluviatilis) caught in different lakes of Türkiye
(University of Nis Faculty of Science and Mathematics, 2025) Atsatan, Kamil; Diler, Ibrahim
This study investigated the morphological traits, growth performance, and organosomatic parameters of perch (Perca fluviatilis) populations collected from twelve lakes and reservoirs in Türkiye. The morphometric measurements, growth indicators, and condition factors of the specimens were analysed in detail. The results revealed significant differences in morphometric and growth characteristics among populations. These variations are closely linked to environmental factors, including water temperature, habitat structure, food availability, and trophic interactions. Populations from Konya (Altınapa), Afyon (Şeyitler), and İzmir-Tahtalı exhibited superior growth performance and higher morphometric values, while individuals from Adana (Seyhan), Ankara (Çamlıdere), and Kırşehir (Hirfanlı) exhibited lower values. These results suggest that freshwater perch populations exhibit significant morphological and physiological plasticity in response to varying habitat conditions. These differences highlight the importance of considering regional environmental factors when developing stock management and conservation strategies for this species. © 2025 Atsatan and Diler.