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Title: Estimation of maximum sustainable yield of Scomberomorus species fish stocks in Pakistan using surplus production models
Authors: Baset, Abdul
Qun, Liu
Pavase, Tushar Ramesh
Hameed, Abdul
Niaz, Zeeshan
Keywords: Scomberomorus;Maximum sustainable yield (MSY);Catch and effort data analysis (CEDA);Pakistan
Issue Date: Nov-2017
Publisher: NISCAIR-CSIR, India
Abstract: Annual catch and effort data were analyzed to estimate the Maximum Sustainable Yield (MSY) of three commercial Seerfish, (Scomberomorus spp., Family: Scombridae), from Pakistani marine waters. The catch and effort data of 19-years (1991 – 2009) were analyzed by computer software package CEDA (Catch and Effort Data Analysis).  MSY was estimated using the initial proportion (IP) value of 0.8 because the starting catch was approximately 80% of the maximum catch.  Estimated MSY values with the Fox, Schaefer and Pella Tomlinson models under two error assumptions of normal and log-normal were 3 642t (R2 = 0.681) and 4 830t (R2 = 0.692),  and  4 223t(R2 =0.676) and 4 583t (R2 =0.682), respectively. Gamma error assumption showed minimization failures for all models. The estimated values of MSY from CEDA were about 3 600 - 4 800 t. In conclusion, the estimated MSY values were lower than the most recent catch revealing that the stocks are overfished.
Page(s): 2372-2378
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.46(11) [November 2017]

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