បង្ហាញកំណត់ត្រាសាមញ្ញសម្រាប់ធាតុ

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dc.contributor.authorBarut, Noel C.
dc.date.accessioned2019-01-14T09:31:51Z
dc.date.available2019-01-14T09:31:51Z
dc.date.issued2000
dc.identifier.citationBarut, N. C. (2000). Catch of experimental longline, purse seine and handline in the South China Sea, Area III: Western Philippines. In Proceedings of the Third Technical Seminar on Marine Fishery Resources Survey in the South China Sea, Area III: Western Philippines, 13-15 July 1999 (pp. 65-75). Bangkok, Thailand: Secretariat, Southeast Asian Fisheries Development Center.en
dc.identifier.isbn9747604655
dc.identifier.urihttp://hdl.handle.net/20.500.12066/4345
dc.description.abstractThis paper presents the tuna longline fishing operation conducted in western Philippine waters as well as the port sampling conducted in Zambales. The longline fishing operation was not successful in catching tuna but caught the deep swimming species such as sharks, lancet fish and opah. The undefined and shallow thermocline might have contributed to the unsuccessful fishing operations. Another reason might be the spatial distribution of tunas brought about by the El Ni–o event, which causes the spreading of the warm water mass from the western Pacific Ocean to the eastern Pacific Ocean allowing the yellowfin tunas to have a wider space to move. Yellowfin tuna stock in the western Philippine waters belongs to the juvenile and subadult population while the skipjack tunas belong to the adult population as most of the catch observed during port sampling were mature. The juvenile and sub-adult stages of yellowfin tunas were not the proper size for the longline fishery, which may explain in part why no tuna was caught during the research cruise. These sizes are available principally to the purse seine fishery as observed in the port sampling survey.en
dc.language.isoenen
dc.publisherSecretariat, Southeast Asian Fisheries Development Centeren
dc.subjectSouth China Seaen
dc.subjectPhilippinesen
dc.subjectThunnus albacares
dc.subjectEuthynnus pelamis
dc.titleCatch of experimental longline, purse seine and handline in the South China Sea, Area III: Western Philippinesen
dc.typeConference paperen
dc.citation.spage65
dc.citation.epage75
dc.subject.asfahandliningen
dc.subject.asfapurse seiningen
dc.subject.asfacatch compositionen
dc.subject.asfafishery surveysen
dc.subject.asfaexperimental fishingen
dc.subject.asfalongliningen
dc.subject.asfatuna fisheriesen
dc.citation.conferenceTitleProceedings of the Third Technical Seminar on Marine Fishery Resources Survey in the South China Sea, Area III: Western Philippines, 13-15 July 1999en


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