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