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A preliminary snapshot of the trophic model and ecosystem attributes of Kaptai reservoir ecosystem, Bangladesh

Journal of Oceanology and Limnology 2021年第1期39卷 223-241页

作者： Mst Halima KHATUN partho protim barman YI Jundong Saymuna Tarin LUPA Md Mahiuddin ZAHANGIR Qun LIU College of Fisheries Ocean University of ChinaQingdao 266003China Department of Fisheries Management Bangladesh Agricultural UniversityMymensingh 2202Bangladesh Department of Fish Biology and Biotechnology Chattogram Veterinary and Animal Sciences UniversityChattogram-4225Bangladesh

A mass-balanced Ecopath model presents a quantitative description of the trophic structure,fl ow of energy and trophic interaction among ecological groups of an *** Ecopath with Ecosim(EwE)modeling program(Version 6.5)was used to develop a preliminary trophic model for a tropical freshwater *** total fi sh biomass was 6.245 t/km 2 and the highest trophic level of the reservoir was 3.362(for snakehead).The ecosystem is phytoplankton based because primary producers originated 68%and detritus originated 32%of the total fl ow from lower trophic *** gross effi ciency of the fi shery was 0.004,suggesting the ineffi ciency of the *** positive eff ect of phytoplankton and detritus on most of the other groups were evident from mixed trophic analysis while moderately higher ecotrophic effi ciency(EE)of phytoplankton shows the ecosystem’s potential bottom-up *** competition for the same resources among diff erent groups was also *** ratio of primary production/respiration(1.969)suggests that the ecosystem is at the developing stage and utmost contemplation should be given to concerned human *** low value of relative ascendancy(30.13)and overhead(69.87)reveals the stability of the ecosystem and some degrees of *** also predicts the presence of signifi cant strength in reserve of the system to withstand or overcome any ***,ecologically sustainable resource management plans should be implemented to ensure the sustainability of this reservoir resources.

关键词： Ecopath Kaptai reservoir trophic interaction transfer effi ciency energy flow

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Assessing recent gradual upsurge of marine captured Hilsa stock(Tenualosa ilisha)in Bangladesh

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Aquaculture and Fisheries 2019年第4期4卷 156-165页

作者： Ehsanul Karim Qun Liu Ming Sun partho protim barman Shanur Jahedul Hasan M.Enamul Hoq College of Fisheries Ocean University of ChinaQingdao 266003China Bangladesh Fisheries Research Institute(BFRI) Mymensingh 2201Bangladesh

The anadromous Hilsa shad(Tenualosa ilisha)fishery is the prime single species fishery of Bangladesh that driven by open access system which was selected for this *** purpose of this study was to assess the MSY(Maximum Sustainable Yield)in order to review the effectivity of the ongoing management policy of this *** this reason,time series maritime or downstream catch-effort data of the Bay of Bengal were assembled from the Department of Fisheries,***,CPUE and other population parameters were estimated through Surplus Production Models(SPMs)using computer software packages of CEDA,ASPIC and *** biological reference points of MSY from the best fitted CEDA package was 282,100 t(R^(2)=0.822)for the normal assumptions of the Schaefer and Pella-Tomlinson *** values from the ASPIC packages(324,100 t and 263,500 t;for Fox and Schaefer model)and Schaefer model from TropFishR(345,486t)were larger than the catch in 2017(278,948 t).The values of F ratio(F/FMSY)for all SPMs were found less than 1 and B ratio(B/BMSY)were greater than 1 that clearly indicate the gradual upsurge of the Hilsa *** on the above findings of BRPs,it also proves the effectivity of the current“Hilsa fishery management action plan”by the authorities.

关键词： Tenualosa ilisha SPM(surplus production model) CEDA(catch and effort data analysis) ASPIC(A surplus production model incorporate covariates) TropFishR

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Fisheries resources of Bangladesh:Present status and future direction

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Aquaculture and Fisheries 2017年第4期2卷 145-156页

作者： Md.Mostafa Shamsuzzaman Mohammad Mahmudul Islam Nusrat Jahan Tania Md.Abdullah Al-Mamun partho protim barman Xiangmin Xu Environmental&Resources Protection Law Ocean University of ChinaQingdao 266100China Department of Coastal and Marine Fisheries Sylhet Agricultural UniversitySylhet 3100Bangladesh Department of Fisheries Marine Fisheries OfficeChittagong 4100Bangladesh

Bangladesh is considered one of the most suitable regions for fisheries in the world,with the world's largest flooded wetland and the third largest aquatic biodiversity in Asia after China and *** paper reviews the performance of fisheries in Bangladesh using data collected from the Bangladesh Department of Fisheries,and related un-published grey *** findings within describe recent growth within Bangladeshi inland fisheries,primarily in the inland aquaculture sector(2014e2015).This increase in the aquaculture production has been made possible with the implementation of scientific and technological *** 2000 and 2016,aquaculture production increased from 712,640 and 2,060,408 metric t,a much larger quantity than wild capture production(1.023 million t)in *** has also been a recent increase in the value of fishery exports,with more than US$34.08 billion in 2010 rising to more than US$46.60 billion in ***,fisheries production is well below production targets despite the large gains seen in the aquaculture sector.

关键词： Inland fishery Aquaculture Coastal and marine Export and import Regulations Bangladesh

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