<span style="font-size:15.0pt;line-height:115%;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman"; mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA" lang="EN-US">Maximum sustainable yield estimates of the Barramundi <i style="mso-bidi-font-style: normal"><span style="font-size:15.0pt;line-height:115%;font-family: "Times New Roman";mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: "Times New Roman";mso-ansi-language:EN-GB;mso-fareast-language:EN-US; mso-bidi-language:AR-SA" lang="EN-GB">Lates calcarifer </span></i><span style="font-size:15.0pt;line-height:115%;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman"; mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA" lang="EN-US">fishery from Northern Arabian Sea</span></span>

12-18<span style="font-size:9.0pt;line-height: 115%;font-family:" times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;mso-fareast-language:="" en-us;mso-bidi-language:ar-sa"="" lang="EN-US">Maximum Sustainable Yield (MSY) of Barramundi Lates calcarifer (Bloch, 1790) <span style="font-size:9.0pt;line-height:115%; font-family:" times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;mso-fareast-language:="" en-us;mso-bidi-language:ar-sa"="" lang="EN-US">fishery of Pakistan are estimated based on catch and effort data from 1995-2009. Two computer software packages CEDA (catch effort data analysis) and ASPIC (a surplus production model incorporating covariates) were applied. Three surplus production models of Fox, Schaefer and Pell-Tomlinson with three error assumptions of normal, log-normal and gamma were used by applying CEDA and two surplus production models of Fox and Schaefer were used by applying ASPIC computer software package. In CEDA initial proportion (IP) was used ranging from 0.1-09. The obtained MSY results using IP 0.8 (because the initial catch was roughly 80% of the maximum catch) in normal, log-normal and gamma error assumptions for Fox, Schaefer and Pella-Tomlinson models were about 107-117t (± 8.131-15.260) t and estimated R2 for three models with three error assumptions were about 0.61-0.67.The estimated MSY results of Fox and Schaefer models using ASPIC computer software package were 118t (±10.856)t and 109t (± 10.384)t<span style="font-size: 9.0pt;line-height:115%;font-family:" times="" new="" roman";mso-fareast-font-family:="" "times="" roman";mso-bidi-font-family:"times="" roman";mso-ansi-language:="" en-gb;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="" lang="EN-GB">  <span style="font-size: 9.0pt;line-height:115%;font-family:" times="" new="" roman";mso-fareast-font-family:="" "times="" roman";mso-bidi-font-family:"times="" roman";mso-ansi-language:="" en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="" lang="EN-US">and estimated R2 for Fox and Schaefer models were 0.803 and 0.794 respectively. The estimated values of MSY are smaller than the recent catch which indicates that the fishery of L. calcarifer in Northern Arabian Sea is over-exploited.</span

Maximum sustainable yield estimates of barramundi <i>Lates calcarifer</i> fishery from Pakistani waters

825-832Maximum Sustainable Yield (MSY) of Barramundi Lates calcarifer (Bloch, 1790) fishery of Pakistan are estimated based on catch and effort data from 1995-2009. Two computer software packages CEDA (catch effort data analysis) and ASPIC (a surplus production model incorporating covariates) were applied. In CEDA initial proportion (IP) was used ranging from 0.1-09. The obtained MSY results using IP 0.8 (because the initial catch was roughly 80% of the maximum catch) in normal, log-normal and gamma error assumptions for Fox, Schaefer and Pella-Tomlinson models were about 107t-117t and estimated R2 for three models with three error assumptions were about 0.61-0.67. Estimated MSY results of Fox and Schaefer models using ASPIC computer software package were 118t and 109t and estimated R2 for Fox and Schaefer models were 0.803 and 0.794 respectively. Estimated values of MSY are smaller than the recent catch which indicates that the fishery of L. calcarifer in Pakistani waters is over-exploited

Applications of CEDA (catch effort data analysis) computer software in estimation of Maximum Sustainable Yieldof the Black Pomfret <i>Parastromateus niger</i>Fishery from Pakistani Waters

576-581The surplus production models of Fox, Schaefer and Pell-Tomlinson with three error assumptions of normal, log-normal and gamma were used to analyze the catch and effort data of Black PomfretParastromateus niger fishery from Pakistani waters using the computer software package CEDA (catch effort data analysis).When using initial proportion of 0.4 (because the initial catch was roughly 40% of the maximum catch) the estimated maximum sustainable yield (MSY) were about 2000-2300t, the coefficient determinationR2 were about 0.20-0.31. Gamma error assumption often showed minimization failure. The estimated MSY from CEDA is smaller than most recent catch of the fishery which indicates that the fishery of P.niger in Pakistani waters may not be in a sustainable condition