LENGTH-GIRTH AND LENGTH-WEIGHT RELATIONSHIPS OF 13 FISH SPECIES FROM IZMIR BAY (TURKEY)

The current study established the relationships between total length and body girths (LGRs), and total weight (LWRs) for 13 marine fish species from Izmir Bay (Turkey). A total of 1282 specimens from 13 species belonging to six families were examined. The regression slope (b) of LGRs ranged from 0.200 to 0.737 in G(1) of Merluccius merluccius and Diplodus annularis, with the corresponding species-values for G(2) and G(3) being 0.244 to 0.834 and 0.237 to 0.917 respectively. Sparids generally presented the highest slopes between all the girths (G(I), G(2) and G(3)) and total length. Moreover, the regression slope (b) in the LWRs ranged from 2.80+ for Spicara maena (Linnaeus, 1758) to 3.33+ for Boops hoops (Linnaeus, 1758) and D. annularis.Ege UniversityEge University [10-SUF-017]This study was financed by the Research Fund of Ege University, Project No: 10-SUF-017, Ege University. We would like to express our thanks to the following for their great assistance during the catching and collecting processes: Tilki Yasar and Ganga Ibrahim, Recep Ozkan and Sebahattin Erbab from Semikler fishing port; Celal Giiven from Urla port; Bayram Ceylan, employed as a fisherman in Research and Application Center of Homa Lagoon of the Fisheries Faculty, Ege University; Erdal Kara, the head of the Maltepe, Tuzcullu, Suzbeyli Fisheries Cooperative and its associates; and Deve Unal, the head of the Guzelbahce Fisheries Cooperative and his wife Yurdanur Gorgon