Hydroacoustic survey of spatio-temporal distribution of demersal fish aggregations near the west coast of Jeju Island, Korea SCOPUS KCI

DC Field Value Language
dc.contributor.author Kang, D. -
dc.contributor.author Im, Y. -
dc.contributor.author Lee, C. -
dc.contributor.author Yoo, J. -
dc.contributor.author Myoung, J.-G. -
dc.date.accessioned 2020-04-20T11:25:21Z -
dc.date.available 2020-04-20T11:25:21Z -
dc.date.created 2020-01-28 -
dc.date.issued 2008 -
dc.identifier.issn 1598-141X -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/4585 -
dc.description.abstract This study aims at assessment of spatio-temporal distribution of demersal fish aggregations near the west coast of Jeju Island using hydroacoustic survey. A 200 kHz split beam transducer attached to a small towed body was used for all acoustic investigations. The received acoustic data were in situ acoustic target strength (TS, dB) for all pings and nautical area scattering coefficient (NASC, m2/mile2) for 0.1 mile along 12 acoustic transects. Demersal fish aggregations are distributed around the coastal slope having 20 to 30 m depth throughout all seasons. The concentration is higher during the summer season. With regard spatial distribution, higher demersal fish aggregations have been detected near the West coast of Shinehang and especially near Chagwi-do. Pelagic fish aggregations were higher to the south of Chagwi-do during the spring season. Additionally, standing stock of demersal fish aggregations from the NASC data, TS function, and length-weight function of dominant species was estimated as follows: 3.2 ton (CF 21.8%) in December 2006, 17.9 ton (CV21.6%) in April 2007, 30.8 ton (CV 17.8%) in June 2007, and 22.5 ton (CV24.2%) in October 2007. The application of hydroacoustic methods offers a new approach to understanding spatio-temporal structure and estimate the biomass of demersal fish aggregations in the coastal area. And the results can be made up limitations of qualitative analysis through net and diving for fisheries resources survey in coastal area. -
dc.description.uri 3 -
dc.language Korean -
dc.publisher Korea Ocean Research and Development Institute -
dc.subject acoustic data -
dc.subject acoustic survey -
dc.subject demersal fish -
dc.subject qualitative analysis -
dc.subject scattering -
dc.subject spatial distribution -
dc.subject temporal distribution -
dc.subject transducer -
dc.subject Asia -
dc.subject Cheju [Cheju (PRV/ISL)] -
dc.subject Cheju [South Korea] -
dc.subject Eurasia -
dc.subject Far East -
dc.subject Korea -
dc.subject South Korea -
dc.title Hydroacoustic survey of spatio-temporal distribution of demersal fish aggregations near the west coast of Jeju Island, Korea -
dc.type Article -
dc.citation.endPage 191 -
dc.citation.startPage 181 -
dc.citation.title Ocean and Polar Research -
dc.citation.volume 30 -
dc.citation.number 2 -
dc.contributor.alternativeName 강돈혁 -
dc.contributor.alternativeName 이창원 -
dc.contributor.alternativeName 명정구 -
dc.identifier.bibliographicCitation Ocean and Polar Research, v.30, no.2, pp.181 - 191 -
dc.identifier.doi 10.4217/OPR.2008.30.2.181 -
dc.identifier.scopusid 2-s2.0-47949100151 -
dc.type.docType Article -
dc.identifier.kciid ART001260637 -
dc.description.journalClass 3 -
dc.subject.keywordPlus acoustic data -
dc.subject.keywordPlus acoustic survey -
dc.subject.keywordPlus demersal fish -
dc.subject.keywordPlus qualitative analysis -
dc.subject.keywordPlus scattering -
dc.subject.keywordPlus spatial distribution -
dc.subject.keywordPlus temporal distribution -
dc.subject.keywordPlus transducer -
dc.subject.keywordPlus Asia -
dc.subject.keywordPlus Cheju [Cheju (PRV/ISL)] -
dc.subject.keywordPlus Cheju [South Korea] -
dc.subject.keywordPlus Eurasia -
dc.subject.keywordPlus Far East -
dc.subject.keywordPlus Korea -
dc.subject.keywordPlus South Korea -
dc.subject.keywordAuthor Coastal region -
dc.subject.keywordAuthor Demersal fish aggregations -
dc.subject.keywordAuthor Hydroacoustic survey -
dc.subject.keywordAuthor Spatio-temporal distribution -
dc.subject.keywordAuthor West coast of Jeju -
dc.description.journalRegisteredClass scopus -
dc.description.journalRegisteredClass kci -
Appears in Collections:
Marine Resources Research Division > Marine Bio-Resources Research Unit > 1. Journal Articles
Marine Domain Management Research Division > Marine Security and Safety Research Center > 1. Journal Articles
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