A Study on the Morphometric and Meristic  Characters of the Threadfin Bream (Nemipterus  Japonicus, Bloch 1791) off Chennai Coast

T. Edwin Prabakaran; R. Jeyasingh Thompson; V. Deepak Samuel

Volume : IV, Issue : I, January - 2014

A Study on the Morphometric and Meristic Characters of the Threadfin Bream (Nemipterus Japonicus, Bloch 1791) off Chennai Coast

T. Edwin Prabakaran, R. Jeyasingh Thompson, V. Deepak Samuel

Abstract :

Data on 16 Morphometric and Meristic Characters of 489 Nemipterus japonicus were analyzed. The relationship between their length and weight is expressed using the formula W = a.L^b. Observation on minute meristic characters such as Spine Count and Ray Count were obtained for each fish and the observed values were cross verified with details pertaining to fish biology from earlier work as a confirmatory test. It is observed that out of 16 variables the following ten variables namely Snout Length (SL), Pre Pelvic Distance (PPD), Width of Dorsal Fin (WDF), Head Length (HL), Body Depth (BD),Standard Length(STL), Fork Length (FL), Post Dorsal Length(PDL1), Total Length (L), Total Weight(W) had a higher degree of correlation with the total length of the fish in the present study.