Importance of the bottom cold-water mass as an over-summering refuge for Euphausia pacifica in the Yellow Sea

DC Field Value Language
dc.contributor.author 주세종 -
dc.contributor.author 고아라 -
dc.contributor.author 이형빈 -
dc.contributor.author 강돈혁 -
dc.date.accessioned 2020-07-16T12:31:46Z -
dc.date.available 2020-07-16T12:31:46Z -
dc.date.created 2020-02-11 -
dc.date.issued 2012-06-04 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/27685 -
dc.description.abstract The bottom cold water mass (YSBCM: ≤ 10°C) is persistently observed in the deep central region of Yellow Sea during the summer when the surface temperature goes up to > 25°C. It may provide over-summering refuge for cold water organisms (such as Calanus sinicus, Euphausia pacifica) to maintain their populations in the Yellow Sea. In order to prove this, we investigated the behavioural (i.e., diel vertical migration - DVM) and physiological shifts (i.e., diet, energy) of Euphausia pacifica between spring (prior to the YSBCM formation) and summer (well developed YSBCM). E pacifica is one of subarctic krill species (their high temperature tolerance = 15°C) and a major food source for fish. In spring, active DVM of E. pacifica was observed throughout the entire water column. However, in the summer, this was limited to the YSBCM, thus enabling them to avoid the high temperature water mass.The results of dietary lipid biomarker and gut content analysis suggest that their diet changed significantly from a dominance of large-sized and chained diatoms in spring to small-sized particles in summer. Therefore, we confirmed that E. pacifica effectively utilize the YSBCM as over-summering refuge through their behavioural adaptation (depth of DVM, diet shift, etc.) without any metabolic changes (diapause, lowering metabolism, etc.). -
dc.description.uri 1 -
dc.language English -
dc.publisher Korea -
dc.relation.isPartOf Korea-China Society of Oceanography Joint Symposium -
dc.title Importance of the bottom cold-water mass as an over-summering refuge for Euphausia pacifica in the Yellow Sea -
dc.type Conference -
dc.citation.conferencePlace KO -
dc.citation.endPage 28 -
dc.citation.startPage 28 -
dc.citation.title Korea-China Society of Oceanography Joint Symposium -
dc.contributor.alternativeName 주세종 -
dc.contributor.alternativeName 고아라 -
dc.contributor.alternativeName 이형빈 -
dc.contributor.alternativeName 강돈혁 -
dc.identifier.bibliographicCitation Korea-China Society of Oceanography Joint Symposium, pp.28 -
dc.description.journalClass 1 -
Appears in Collections:
Marine Resources Research Division > Global Ocean Research Center > 2. Conference Papers
Marine Resources Research Division > Deep-sea Mineral Resources Research Center > 2. Conference Papers
Marine Domain Management Research Division > Marine Security and Safety Research Center > 2. Conference Papers
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