Length and weight relationship of Etroplus suratensis (Bloch, 1790) in lower anicut, South India

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Author: 
Jenny, K. and Pragash Raj, R.
Subject Area: 
Life Sciences
Abstract: 

The present study aimed to analyze the length and weight relationship of Pearl spot Etroplus suratensis in Lower Anicut. The study area of Lower Anicut (110 15 N Latitude and 790 30' E Longitude) is one among the major fishing point in Cauvery river system in Tamil Nadu. The E.suratensis is one of the commercially important fish species of the family Cichlidae (Local name “Papai Meen”). A total of 120 specimens comprising of 60 males and 60 females were collected and analyzed during the period of November 2015 to October 2016. The fishes ranged in length from 84 mm to 212 mm of male and 82 mm to 196 mm of female, weight ranged from 15g to 260g of male, 18 g to 208 g for female. The results of length and weight relationship of 120 specimens of r2 value is 0.752 and 0.926 of male, 0.557 of females respectively. The r 2 values of male are higher than females and it shows allometric growth of both sexes. The slope value was compared here could be very useful for comparison with the freshwater species in other geographical locations.

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