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Hilsa Investigations in Bangladesh - BOBP/REP/36









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    Book (stand-alone)
    The Coastal Set Bagnet Fishery of Bangladesh - Fishing Trials and Investigations - BOBP/REP/34 1986
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    This paper reports on the conduct and findings of fishing experiments during six seasons (1980-86) to improve the economics of set bagnets (behundi jal) in Bangladesh. The main purposes were to reduce the costs by using cheaper materials and to increase productivity by employing nets of larger size and new designs. The set bagnet is a traditional fishing gear widely used in the coastal area of Bangladesh. It is the second most important fishing gear after gillnets. In order to better estim ate its importance, BOBP also conducted a pilot survey, the outcome of which has been published in a separate paper (BOBP/WP/34). The work was carried out in cooperation with the Marine Fisheries Department (MFD), Chittagong. The principal national officer engaged in the work was Mr. M.A. Sabur, Fisheries Inspector, who participated on a full-time basis in the trials during the last four years. The initial experiments (1980-81) were conducted in cooperation with the Kalidaha Fishing Pr oject of CARITAS, a social service agency of Juldia near Chittagong, and with private fishermen at Dubla Char off the Sunderbans. From the 1981/82 season the trials were concentrated in Sonadia Island, just north of Cox’s Bazaar. They were conducted in cooperation with private fishermen. Overall planning and supervision of the work was provided by BOBP’s Fishing Technologist, Mr. G. Pajot, during 1980-82 and 1984-86 and by Mr. T. Gestsson, consultant, during 1982-84 The author participate d part-time in the 1983/84 and 1984/85 trials as BOBP Associate Expert in Fishing Technology and in the 1985/86 trials as full-time consultant. Dr. B.T. Antony Raja, Fishery Biologist and BOBP consultant, assisted in interpreting data collected during the last season (1985/86) and in preparing this report.
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    Project
    Studies of Interactive Marine Fisheries of Bangladesh-BOBP/WP/89 1993
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    Concerned about the effects of the estuarine set bagnet fishery on the shrimp and finfish resources and also on other marine fisheries dependent on the same resources, the Bangladesh Department of Fisheries, with the assistance of the Bay of Bengal Programme (BOBP), conducted a two-year (1989-91) biosocioeconomic assessment of the estuarine set bagnet fishery. In ordcr to make the assessments needed for management purposes, it was necessary to gather information on other interactive fisheries: t he marine set bagnet, trammelnet, bottom longline and shrimp trawl fisheries. The only major marine fishery not included was the Hilsa fishery, which does not interact with the estuarine set bagnet fishery. This report contains the information (catch rate, seasonality, catch, effort, biological parameters and cost and earnings) gathered in the estuarine set bagnet and other interactive fisheries, but the socioeconomic information and biosocioeconomic assessment results are published separate ly as BOBP/WP/90 and BOBP/REP/62. The authors of the seven parts of this paper were all members of the Management and Development Project, Department of Fisheries, Chittagong, Bangladesh, and were assisted by BOBP’s Senior Fishery Biologist, Dr K Sivasubramaniam. The investigations were done under BOBP’s “Small-scale Fisherfolk Communities” project funded by DANIDA and SIDA and the reporting under “Bioeconomics of Smallscale Fisheries” funded by UNDP.
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    Project
    A Review Of The Biology And Fisheries Of Hilsa Ilisha In The Upper Bay Of Bengal - BOBP/WP/37 1985
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    This paper describes the Hilsa shad fishery in the upper Bay of Bengal (Orissa and West Bengal in India; Bangladesh and Burma). It reviews current knowledge on the biology and fishery of Hilsa ilisha, sets out the findings of field observations in these areas, and makes recommendations on future work needed to understand better the nature of the stocks exploited in India and Bangladesh. The study on which this paper is based was initiated in September 1983 and continued in intermittent spells till March 1984. The paper and the study are activities of the project “Marine Fishery Resources Management in the Bay of Bengal”: RAS/81/051, which is funded by the UNDP (United Nations Development Programme), and executed by the FAO (Food and Agriculture Organization of the United Nations) under its Bay of Bengal Programme (BOBP). The project has a duration of four years; it commenced in January 1983. Its immediate objective is to improve the practice of fishery resources assessment amo ng participating countries and to stimulate and assist in joint assessment and management activities between countries sharing fish stocks.

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