Journal of the Marine Biological Association of India

Length-weight relation of three  species of goatfish from the south-east
Arabian Sea

Volume 66 Issue 1

K. M. Vishnupriya, Rekha J. Nair and A. T. Sangeetha

10.6024/jmbai.2024.66.1.2448-17

Abstract

Length-weight relationship (LWR) of Upeneus guttatus (Day 1868),Upeneus sulphureus (Cuvier, 1829) and Parupeneus heptacanthus (Lacepède, 1802) was assessed from the Southwest coast of India for a study period November 2020 to August 2021. The total length of U. guttatus varied from 86 to 197 mm, and wet weight ranged from 5 to 78.5 g. Regression coefficient b for male, female, and pooled U. guttatus was found to be 3.100, 3.144, and 3.376 respectively and coefficient of determination (r 2 ) was estimated to be 0.954 (male); 0.967 (female); 0.953 (pooled). The b value of U. sulphureus was found to be 3.14 andr 2 = 0.943 (pooled) and the total length varied from 112-181mm; wet weight: 18.2 to 87.5g. The b value of P. heptacanthus was found to be 3.135 and r 2 = 0.976 (pooled) and body length varied from 133-227 mm; wet weight: 29 to 179 g. A positive allometric growth factor was observed for all species. Mathematical models such as length-weight relationships help describe the growth parameters of fish at various time intervals. This study throws light on the LWRs of three species of goatfish available in Indian waters.

Keywords

Length-weight relationship, Upeneus guttatus, Upeneus sulphureus, Parupeneus heptacanthus, positive allometric

 

 

 

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Date : 11-04-2024