Şen Özdemir, Nurgül; Aydın, Erdinç; Sokmen, Teoman Ozgur

Length-weight relationships (LWRs) and Fulton condition factor (CF) of 8 fish species belonging to different families (Bilicca bjoerkna, Scardinus erythrophthalmus and Carassius gibelio from Cyprinidae, Esox lucius from Esocidae, Silurus glanis from Siluridae, Perca fuliviatilis from Percidae, Abramis brama from Leuciscidae) obtained from commercial fishermen in Çaltıcak (Taşkısığı) Lake (Sakarya/Türkiye) were examined. LWRs and CF of the fish species were analyzed between March 2021 and March 2022. C. gibelio and E. lucius show positive allometric growth, B. bjoerkna,S. glanis and P. fuliviatilis and A. brama showed negative allometric growth, while S. erythrophthalmus and T. tinca show isometric growth. The lowest CF values of the fish species were also determined in S. glanis (0.62) and E. lucius (0.69). It is thought that the information obtained in the study about the LWRs and CF values of the fish species in Çaltıcak Lake will be beneficial for commercial fishing and fisheries management in the region.