Length-weight relationships of 28 fish species caught from demersal trawl survey in the Middle Black Sea, Turkey

Authors: MURAT DAĞTEKİN, YAŞAR GENÇ, NAZLI KASAPOĞLU, GÖKHAN ERİK, DEVRİM SELİM MISIR, SALİH İLHAN, MELTEM OK, CEMİL ALTUNTAŞ, UĞUR ÖZSANDIKÇI, FERHAT BÜYÜKDEVECİ, TUĞBA KAYA, AYŞE CEBECİ, ASİYE NUR SALTAN, ATİLA HAŞİMOĞLU, ŞİRİN FİRİDİN, MUHAMMED DOĞAN ÖZDEMİR

Abstract: This study provides updated the length-weight relationships and Fulton's condition factor of 28 fish species belonging to 23 families from the Black Sea. Samples were collected along the depths between 0-100 meters by demersal trawl surveys conducted seasonally from May 2017 to September 2019. A total of 83,885 specimens were collected. The length-weight relationships and Fulton's condition factor, minimum, maximum and mean lengths, total weights, descriptive statistics, and growth type were provided for all the species. The results indicate that LWR parameters of b varied from 2.2039 to 3.737 and Fulton's condition factor varied between 0.004 and 1.18. These findings could be useful for monitoring and management of sustainable fisheries and habitat health.

Keywords: Length-weight relationship, Black Sea, Turkey, bottom trawl survey

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