Population Dynamics of Coilia ramcarati from the Estuarine Set Bagnet Fishery of Bangladesh

Md. Sohel PARVEZ; Md. Rashed-Un NABI

Authors

Md. Sohel PARVEZ National Oceanographic Research Institute, Ramu, Cox’s Bazar
Md. Rashed-Un NABI Institute of Marine Sciences and Fisheries, University of Chittagong, Chittagong-4331

Keywords:

Asymptotic length, growth coefficient, Mortality, VPA, recruitment

Abstract

Population parameters of Coilia ramcarati were estimated from length-frequency data collected from Estuarine Set Bag Net (ESBN) Fishery of Chittagong and Cox’s Bazar region in Bangladesh from January to December, 2010. For the purpose of estimating the parameters FAO-ICLARM Stock Assessment Tool (FiSAT II) software was used. The asymptotic Length (L_¥) and growth constant (K) were estimated to be 22.58 cm for male, 19.43 cm for female and 0.49 y^-1 for male, 2.10 y^-1 for female, respectively. The male C. ramcarati found to attain larger body size compared to female. A slightly fluctuating positive trend was observed for mean weight. The value of exploitation rate depicts overfishing condition for this species in the ESBN fishery with high catching probability of the juveniles. The recruitment pattern of this species was found continuous throughout the year characterized by 2 peaks both for male and female.

doi:10.14456/WJST.2015.75

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Author Biography

Md. Rashed-Un NABI, Institute of Marine Sciences and Fisheries, University of Chittagong, Chittagong-4331

Professor, Institute of Marine Sciences and Fisheries
University of Chittagong
Bangladesh

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