Relationships between Otolith Dimensions and Total Length of Some Small-sized Fish Species from the Marmara Sea, Türkiye

Authors : Yusuf Şen, İsmail Burak Daban

Pages : 12-22

View : 64 | Download : 107

Publication Date : 2024-06-30

Article Type : Research Paper

Abstract :The small-sized adult and juvenile fish species have great ecological importance by means of the prey-predator relationship. Due to these species become prey of larger fish species, their otoliths are mostly seen in the stomach content of predators. The fish size-otolith size studies reveals robust data for estimating fish size from the otolith size. To contribute this aspect, the relationships between total length and otolith length (TL-OL), total length and otolith width (TL-OW), total length and otolith radius (TL-OR) of seven species (Liza sa-liens, Pomatoschistus marmoratus, Pomatoschistus bathi, Pomatoschistus minutus, Synapturichthys kleinii, Chelidonichthys lucerna and Symphodus roissali) were investigated. Species were obtained by beach-seine nets from 12 sampling stations in the shallow waters of the Marmara Sea. While calculating the relationships, linear regression analysis (y = bx + a) was used and the coefficient of determination (R2) was identified. The R2 values were usually seen as high in all equations. The highest values of R2 for TL-OL and TL-OW were obtained from P. minutus, while the highest values of TL-OR detected were for C. lucerna. The lowest values of R2 for TL-OW and TL-OR were obtained from P. marmoratus, while the lowest values of TL-OL were de-tected for P. bathi. This study revealed the first results for P. minutus, S. kleinii, S. roissali in the Turkiye Seas and for P. bathi in the worldwide by means of fish length – otolith size relationships.
Keywords : Iğrıp, Juvenil, Balık, Otolit boyutu, Sığ sular