Length-Weight Relationship of Two Creek Associated Mangrove Fishes, Gorai Creek, Mumbai, India

Abstract

The length-weight relationships were estimated for two creek associated mangrove fishes caught in Gorai creek, Mumbai, North-Western part of Maharashtra, India using dol nets. The dol net fishing took place from August, 2019 to July, 2020 in monthly intervals, using dol nets of equipped with mesh size of 280 mm at mouth part and 20 mm at cod end part of the dol net. The dol nets fabricated with nylon multifilament were operated from 6 to 25 m depth for 3–6 h each time deployed in 15 fishing trials. The total length and total weight of the combined sex group was recorded by using the logarithmic transformed data, linear regression analysis was performed to calculate a and b values for two fish species to establish length-weight relationships with respective coefficient of correlation and the 95% confidence intervals. A new maximum total length was recorded for two creek associated mangrove fishes, viz., Escualosa thoracata (10.1 cm) and Bregmaceros mcclellandi (10.5 cm).