Length-Weight, Length-Length Relationships and Condition Factor of commercial grey mullet species from Köyceğiz Lagoon in Turkey

Abstract

The relationships between length weight, length length parameters and condition factor were given for 4 grey mullet species that caught in Köyceğiz Lagoon area between January 2017 and December 2017. Total length and weight were recorded and they ranged from 6.2-39.3 cm and 2.34-508.38 g for Liza aurata, 8.9-47.6 cm and 8.61-1006.5 g for Mugil cephalus, 5.0-37.7 cm and 1.62-478.90 g for Chelon labrosus and 3.8-35.2 cm and 0.52-462.88 g for Liza saliens. The length-weight relationships were determined for L. aurata, M. cephalus, C. labrosus and L. saliens as W=0.0087L2.96, W=0.0106L2.95, W=0.0073L3.065 andW=0.0067L3.045 respectively. All the fish species showed isometric growth (b=3). There were strong correlations between total length, fork length and standard length of 4 fish species (P<0.001). Also the condition factor values significantly (P<0.001) range between 0.56-1.30 for L. aurata, 0.66-1.22 for M. cephalus, 0.64-1.30 for C. labrosus, 0.57-1.06 for L. saliens.