Study of body length in relationship to other morphometric measurements in Cetenopharynoodon (Grass carp) ─ A deviation from cubes law

Abstract

Cetenopharynoodon (Grass carp) a cobitidae fish inhabits lentic and lotic waters. 21 specimens of Grass carp were collected from the ponds of Combtur, Tamil Naidu from March 2013 to June 2014 with the help from local fisherman. The specimens ranged from 19-37 gm in weight and 12.2 - 14.2 cm in total length. The results indicate that the fish population is on declining trend as is evident from the number of specimens caught with hard efforts and conservation of fish is thus need of hour. In the present study an attempt is made to study the length weight relationship and other morphometric measurements of the species. It is found that the fish does not obey cube law, and its growth does not follow an isometric pattern.