Ex situ target-strength measurements of Japanese anchovy (Engraulis japonicus) in the coastal Northwest Pacific SCIE SCOPUS

DC Field Value Language
dc.contributor.author Kang, Donhyug -
dc.contributor.author Cho, Sungho -
dc.contributor.author Lee, Changwon -
dc.contributor.author Myoung, Jung-Goo -
dc.contributor.author Na, Jungyul -
dc.date.accessioned 2020-04-20T09:40:28Z -
dc.date.available 2020-04-20T09:40:28Z -
dc.date.created 2020-01-28 -
dc.date.issued 2009-07 -
dc.identifier.issn 1054-3139 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/4278 -
dc.description.abstract The Japanese anchovy (Engraulis japonicus) is an important species in regard to the fisheries and ecology of the coastal Northwest Pacific. Measurements of ex situ target strength (TS; dB re 1 m(2)) were made on live anchovy using 38, 120, and 200 kHz split-beam echosounders. The fish were tethered using small hooks attached to their mouths. During the acoustic measurements, an underwater video camera was used to continuously monitor fish behaviour and tilt-angle (theta). Data for 35 individual anchovy ranging from immature to adult sizes (total lengths L(T) = 4.8-12.2 cm) were analysed. Least-squares regression fits of TS vs. log(L(T)) were: TS(38 kHz) = 20 log(L(T)) - 65.8 (r(2) = 0.82), TS(120 kHz) = 20 log(L(T)) - 68.4 (r(2) = 0.84), and TS(200 kHz) = 20 log(L(T)) - 69.1 (r(2) = 0.71). The LT vs. wet weight (W; g) relationship for these fish was W = 0.0036 L(T)(3.204). The mean theta for anchovy swimming freely in a large seawater tank was 9.1 degrees (s.d. = 13.1 degrees). These ex situ measurements of TS, L(T), W, and theta can be applied to improve acoustic estimates of Japanese anchovy biomass. -
dc.description.uri 1 -
dc.language English -
dc.publisher OXFORD UNIV PRESS -
dc.subject IN-SITU -
dc.subject SOUND-SCATTERING -
dc.subject ACOUSTIC MODELS -
dc.subject FISH -
dc.title Ex situ target-strength measurements of Japanese anchovy (Engraulis japonicus) in the coastal Northwest Pacific -
dc.type Article -
dc.citation.endPage 1224 -
dc.citation.startPage 1219 -
dc.citation.title ICES JOURNAL OF MARINE SCIENCE -
dc.citation.volume 66 -
dc.citation.number 6 -
dc.contributor.alternativeName 강돈혁 -
dc.contributor.alternativeName 명정구 -
dc.identifier.bibliographicCitation ICES JOURNAL OF MARINE SCIENCE, v.66, no.6, pp.1219 - 1224 -
dc.identifier.doi 10.1093/icesjms/fsp042 -
dc.identifier.scopusid 2-s2.0-84861600269 -
dc.identifier.wosid 000267221600036 -
dc.type.docType Article; Proceedings Paper -
dc.description.journalClass 1 -
dc.subject.keywordPlus IN-SITU -
dc.subject.keywordPlus SOUND-SCATTERING -
dc.subject.keywordPlus ACOUSTIC MODELS -
dc.subject.keywordPlus FISH -
dc.subject.keywordAuthor acoustic target strength -
dc.subject.keywordAuthor ex situ measurement -
dc.subject.keywordAuthor Japanese anchovy -
dc.subject.keywordAuthor tilt-angle -
dc.relation.journalWebOfScienceCategory Fisheries -
dc.relation.journalWebOfScienceCategory Marine & Freshwater Biology -
dc.relation.journalWebOfScienceCategory Oceanography -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Fisheries -
dc.relation.journalResearchArea Marine & Freshwater Biology -
dc.relation.journalResearchArea Oceanography -
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