RT Journal
T1 ESTIMATION OF MAXIMUM SUSTAINABLE HARVEST LEVELS OF SEA CATFISHES IN SINDH, PAKISTAN
A1 M. Noman
A1 Y. T. Mu
A1 S. Abbas
A1 M. Mohsin
A1 A. Mehak
JF Journal of Animal and Plant Sciences
JO JAPS
SN 1018-7081
VO 28
IS 5
SP 1348
OP 1356
YR 2018
FD 2018/10/01
DO DOI NA
AB It is necessary to access fishery stock status before harvesting due to continued overexploitation of fishery resources. The aim of this study is to estimate maximum sustainable yield (MSY) of sea catfishes (Family: Ariidae) in Pakistani marine waters from Sindh coastline. Research method used is the statistical analysis of fishery output (FO) and fishery input (FI) data by using non-equilibrium surplus production models ( SPMs). In Catch and Effort Data Analysis (CEDA) software, three SPMs viz. Fox model (F-M) , Schaefer model (S-M) and Pella-Tomlinson model (PT-M) were used along with three error assumptions (EAs) viz. log ( L-EA) , log normal (LN-EA) and gamma (G-EA). Whereas, in A Stock Production Model Incorporating Covariates (ASPIC) computer package two SPMs viz. Fox (F-M) and Logistic (L-M) were employed for data analysis. For initial proportion ( IP) 0.9, CEDA software computed MSY in range 12,000  2 16,000 t ( metric ton) . F-M showed the highest goodness of fit (R = 0.928) value. For the same IP value, ASPIC computer 2 package estimated MSY in a range 14,000 20,000 t. Here, F-M again showed higher R (0.926), value. Estimated results suggest that, MSY range at Sindh coast is around 12,000 200,000 t. However, FO statistics indicate that this resource has consistently been overexploited. The conclusion of this study is that this fishery resource is overharvested and demand some concrete fishery management steps for its conservation in Pakistani marine waters. ( Schaefer, 1954; Pella and Tomlinson, 1969; Fox, 1970;
K1 Sea catfishes, MSY, CEDA, ASPIC, Sindh, Pakistan.
PB Pakistan Agricultural Scientists Forum
LK https://thejaps.org.pk/AbstractView.aspx?mid=2018-JAPS-514