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dc.contributor.authorTheparoonrat, Yuttana
dc.contributor.authorSeakow, Suvimon
dc.contributor.authorSeurungreong, Siriporn
dc.date.accessioned2018-12-06T07:54:42Z
dc.date.available2018-12-06T07:54:42Z
dc.date.issued1999
dc.identifier.citationTheparoonrat, Y., Seakow, S., & Seurungreong, S. (1999). Biomass estimation by hydro-acoustic methods in the Gulf of Thailand and Peninsular Malaysia. In Proceedings of the First Technical Seminar on Marine Fishery Resources Survey in the South China Sea, Area I: Gulf of Thailand and Peninsular Malaysia, 24-26 November 1997, Bangkok, Thailand (pp. 347-366). Samutprakan, Thailand: Training Department, Southeast Asian Fisheries Development Center.en
dc.identifier.urihttp://hdl.handle.net/20.500.12067/794
dc.description.abstractThe abundance of fisheries resources and their structure in the Gulf of Thailand and East coast of Peninsular Malaysia were investigated during the SEAFDEC Collaborative Research Survey. Hydro-acoustic surveying using a scientific echo sounder model FQ-70 was conducted to estimate the fish abundance and biomass. Two survey cruises were carried out by M.V.SEAFDEC during the pre and post-northeast monsoon seasons. The scientific echo-sounder was equipped with an echointegrator and two quasi-ideal beam transducers with operating frequencies of 50 and 200 kHz. The volume back scattering strength (SV) of the fish schools were collected from the layer of water at a depth from 10 m to the bottom along the track of survey cruise. The estimated biomass measured by high frequency shows clearly that a high concentration is observed at the upper and middle part of the Gulf of Thailand and the boarder area between Thailand and Malaysia waters during the pre-northeast monsoon season. Whereas, high biomass concentration shows only in the middle part of the Gulf of Thailand during the post-northeast monsoon season.en
dc.language.isoenen
dc.publisherTraining Department, Southeast Asian Fisheries Development Centeren
dc.subjectSouth China Seaen
dc.subjectGulf of Thailanden
dc.subjectMalaysiaen
dc.titleBiomass estimation by hydro-acoustic methods in the Gulf of Thailand and Peninsular Malaysiaen
dc.typeConference paperen
dc.citation.spage347
dc.citation.epage366
dc.subject.asfaMarine fisheriesen
dc.subject.asfaFishery surveysen
dc.subject.asfaStock assessmenten
dc.subject.asfaEcho surveysen
dc.subject.asfaBiomassen
dc.subject.asfaMonsoonsen
dc.citation.conferenceTitleProceedings of the First Technical Seminar on Marine Fishery Resources Survey in the South China Sea, Area I: Gulf of Thailand and Peninsular Malaysia, 24-26 November 1997, Bangkok, Thailanden


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