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Fishery statistical system in Sri Lanka

Year of publication 1976

Pages 19

Author Banerji, S.K.

Publisher FAO ;

Product type Document

Edition 1

Synopsis (short abstract) The report contains an evaluation of the working of the statistical system currently in use in Sri Lanka for the estimation of marine fish landings. The evaluation covers both technical aspects of the sample survey design as well as its working in the field. On recommends a single uniform design along with method of estimation for all sectors of marine fisheries. On field operations the report suggests that fully trained full-time field staff exclusively for the purpose of statistics collection with adequate supervision is highly preferable for successful operation of any survey system. The report also provides an interim scheme for the estimation of inland fish production.

Language English

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    This publication includes forty papers and two abstracts of papers presented at the Second FAO Expert Consultation on Pacific Tuna Fisheries held in Shimizu, Japan, from 23 to 31 January 1995. The topics of the papers include: · reviews of tuna fisheries interactions and their research including methods for their study, · new methods for studying tuna fisheries interactions and examination of their applicability, · case studies on tuna fisheries interactions, · analyses of tuna fisheri es involved in interactions and their management, and · an overview of FAO’s project that co-organized and co-sponsored the Consultation. A supplement of an indexed bibliography of papers on tuna and billfish tagging, which was printed separately, is also included. The objectives of the Consultation were to: · review and integrate the outcome of the studies on tuna fisheries interactions, · summarize the extent of tuna fisheries interactions and unresolved research problems, and · fo rmulate guidelines for research on tuna fisheries interactions. The understanding of tuna fisheries interactions was enhanced significantly by recent studies. However, the Consultation noted that the number of quantified interactions is still small due primarily to difficulties associated with evaluating such interactions. The papers providing supporting information for the conclusions of the Consultation are presented in this publication. Interactions were found to vary in significance depend ing on the biological characteristics of the species involved, the sizes of fish caught, the local and stock-wide rates of exploitation, and the distance among fisheries. In many of the studies presented, the inadequacy of fisheries data was stressed. In addition, the lack of understanding of movements of the fish being studied was noted in several papers. General qualitative guidelines presented in several discussion papers stressed that specifically-designed studies be undertaken to adequately quantify interactions. Well-designed tagging experiments were thought to provide the most reliable information about interactions. Guidelines for the collection of data, biological and ecosystem research, modelling, and alternative methodologies for studying tuna fisheries interactions are also included.
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    Pelagic Fishery Investigations on the Southwest Coast - phase 2, India. Distribution and abundance of marine fish resources off the Southwest Coast of India (Results of acoustic surveys, 1976-78)
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    This is one of a series of reports prepared during the course of the FAO/UNDP project identified on the title page. The conclusions and recommendations given in the report are those considered appropriate at the time of its preparation. They may be modified in the light of further knowledge gained at subsequent stages of the project.
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    The Ministry of Agriculture and Fisheries of the Government of the United Arab Emirates is deeply involved with the development of marine fisheries in the country and to develop a statistical system which will produce appropriate statistics to measure the growth of development taking place. The types of statistics necessary for such purpose are enumerated by considering each of the three phases of the fishing industry which are: catching fish; processing, curing and preservation; marketing and d istribution. Appropriate methods for collecting data for the estimation of these statistics are also discussed. The requirements of minimum staff are also indicated.
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