Stock appraisal for Atlantic tripletail(Lobotes surinamensis;Bloch,1790)in the Bay of Bengal,Bangladesh  

作　　者：Suman BARUA Qun LIU Ahmed Fazley RABBY MdAbdullah AL-MAMUN Xu CHEN Rokeya SULTANA Aidah BALOCH 

机构地区：[1]College of Fisheries,Ocean University of China,Qingdao 266003,China [2]Department of Fisheries,Ministry of Fisheries and Livestock,Dhaka 1215,Bangladesh [3]Bangladesh Fisheries Research Institute,Cox’s Bazar 4700,Bangladesh [4]Directorate of Secondary and Higher Education,Ministry of Education,Dhaka 1000,Bangladesh [5]Gwadar Development Authority,Gwadar 91200,Pakistan

出　　处：《Journal of Oceanology and Limnology》2024年第5期1683-1694,共12页海洋湖沼学报（英文）

基　　金：Supported by the special research fund of Ocean University of China(No.201562030)。

摘　　要：The Atlantic tripletail(Lobotes surinamensis)is a high revenue-generating fish species predominantly caught by mechanized artisanal fishers community and the most available member of its family in Bangladesh.This is a ground work of fish stock assessment study in the Bay of Bengal region to explore the life history parameters and associated biomass of this species,using three length-based approaches of TropFishR,the length-based Bayesian biomass estimation(LBB),and Froese’s length based indicators(LBIs).An almost homogenous body growth pattern(b=3.07;R^(2)=0.98)was observed in the length-weight relationship of tripletail.The life history parameters for tripletail,as determined by the von Bertalanffy Growth Function(VBGF)model,were L_(∞)=113.36 cm and k=0.51/a.The length converted catch curve(LCCC)yielded an estimation of the total mortality(Z=1.77/a),with the natural mortality estimated at(M=0.53/a)and the fishing mortality estimated at(F=1.24/a).But,the ratio of mortality(F/M=0.15)by LBB captured the non-fully exploited status of biomass(B/B_(MSY)=2.1).LBI analysis indicated that the tripletail fishery’s spawning stock biomass is greater than the target and limit reference points,indicating a healthy state of biomass.

关 键 词：Bay of Bengal Lobotes surinamensis TropFishR length based indicator(LBI) length-based Bayesian biomass estimation(LBB) BANGLADESH 

分 类 号：S932.4[农业科学—渔业资源]