Present Status of Morphometric Characteristics and their Correlations with a Fish, Channa punctatus from Arrah, Bihar, India

Abstract

The present study aims to measure the morphometric characteristics and their correlation of a fish, Channa punctatus (Bloch, 1793) from Arrah, Bihar, India. The collection of fish specimens took place from September 2022 to August 2023. Nineteen morphometric and nineteen relative metamorphic characters have been measured for each fish specimen. The descriptive statistical parameters and correlation coefficient were analysed with total length and other morphometric characters.  It was observed that the relationship between various morphometric characters and total length was linearly positive and significant (p 0.01). Significant differences (p 0.01) in the slopes of different regression lines for each morphometric measurement were also discovered. The negative allometric growth of these characters relative to total length is indicated by a slope value less than 3.0 with total length and other morphometric characters. Hence, there is a direct relationship between the total length of fish and all morphometric characters, which were found to be the best indicators of allometric pattern growth in fish. The study shows that fish growth is satisfactory and that the aquatic environment is favourable for fish