Catch and Effort Data
MetadataShow full item record
The objectives of studies on fish population are as follows; firstly, to make a diagnosis of the past and present situation of a stock and give an adequate foundation for optimum yield; secondly, to make a good estimate of the future situation of a sock, and thirdly, to enhance the productivity of a stock if possible. In order to diagnose the present situation of a stock, information on fluctuations in productivity of fisheries is of vital importance. Such information can be obtained from the fisheries statistics data which are mainly compiled by the Statistics Section of the Department of Fisheries of a country. These data consist of two main components, i.e., catch and effort data on populations of commercially important fishes. These data also provide some indications on the mechanism of stock fluctuations. The present textbook has been prepared to give the SEAFDEC trainees a basic knowledge of fish population and show a brief guideline on haw to evaluted "the current situation of fisheries" and how to treat catch and effort data. It is vased on revisions and summaries of several working papers presented by the author at technical workshops and seminars held at SEAFDEC, Bangkok, in 1979-81. Most of the references cited in this book are from Japanese technical papers mainly related to selected pelagic fish species around Japanese coastal waters.
Hayase, S. (1982). Catch and Effort Data. Training Department, Southeast Asian Fisheries Development Center.
Showing items related by title, author, creator and subject.
“Strategies for Trawl Fisheries Bycatch Management” GCP/RAS/269/GFF REBYC-II CTI INDONESIA Technical Meeting on Data Collection & Evaluation of Fishing Effort for Fisheries Management (Based on the Guidelines developed for Total Allowable Effort Calculation) Denpasar, Bali 27 – 30 September 2016 SEAFDEC, GEF, FAO,DGCF (SEAFDEC, 2016-09-20)The Project – Strategies for trawl fisheries bycatch management (REBYC-II CTI; GCP/RAS/269/GFF) – is contributing to the more sustainable use of fisheries resources and healthier marine ecosystems in the Coral Triangle and ...
Guideline For Fishing Effort Management (Total Allowable Effort) In Trawl Fishery Management In Aru and Arafura Sea Umi Muawanah, PhD. (SEAFDEC, 2016)Trawl fishery in Indonesia is considered to have negative impact on the fisheries resources and it is also considered to be destructive to the marine ecosystems and impact negatively on the biodiversity, threatening ...
Report on Baseline Survey on Fishing Effort and Landing in the Southwestern Gulf of Thailand Unknown author (Southeast Asian Fisheries Development Center, 2016-09)A baseline survey on fishing efforts and landing in the Southwestern Gulf of Thailand is an activity under the title of “Strengthening Malaysian and Thai Partnership in support of Joint Fisheries Planning and Management ...