Population Dynamics of Pampus Griseus (Cuvier & Valenciennes, 1833) in Mon Coastal Area

Year 2023, Volume: 5 Issue: 2, 258 - 263, 30.08.2023

Zarni Ko Ko

Abstract

The study on the population dynamics of Pampus griseus (P. griseus) was conducted from 2018 to 2023 in Mon coastal area. Specimens of P. griseus were collected with their lengths ranged from 8 to 36 cm and their weights ranged from 20 to 872.5 g. The population parameters such as asymptotic length L∞ and growth curvature parameter K were found to be 38.33 cm and 0.94 per year, and the length of the fish was attained at the end of 1 to 6 years. The mortality parameters obtained from the ELEFAN method; the total mortality coefficient (Z), the natural mortality coefficient (M) and the fishing mortality coefficient (F) were estimated to be 1.81 per year, 1.58 per year, and 0.23 per year. The natural mortality was higher than the fishing mortality during the present study. The value of exploitation value, E = 0.13 which pointed toward underfishing conditions (E < 0.50) for P. griseus in the present study.

Keywords

Growth rate, Mortality rates, Recruitment pattern, Pampus griseus, Mon coastal area

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