Population development strategy of two dinoflagellates Cochlodinium polykrikoides and Alexandrium affine during the summer in the coastal environments of the southern sea of Korea

DC Field Value Language
dc.contributor.author 임영균 -
dc.contributor.author 김진호 -
dc.contributor.author 이민지 -
dc.contributor.author 백승호 -
dc.date.accessioned 2020-07-15T09:32:45Z -
dc.date.available 2020-07-15T09:32:45Z -
dc.date.created 2020-02-11 -
dc.date.issued 2019-04-25 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/22754 -
dc.description.abstract Harmful algal blooms (HABs) of the dinoflagellates Cochlodinium and Alexandrium are known to have serious negative impacts on marine ecosystems and the aquaculture industry. We investigated the appearance and succession patterns of both HAB species in coastal environments of southern Korea and performed a bioassay using C. polykrikoides and A. affine cultures to evaluate their competitive relationship. From June to August in 2017, the surface water temperature increased from17.4°C to 26.8°C, the salinity decreased from 34.15 to 30.8, and strong stratification developed. The nutrient concentrations maintained low level in the surface layer and high in the bottom layers. First, C. polykrikoides dominated in July however, abundance of A. affine reached bloom levels in whole study areas in August. The growth experiments were carried out on each species at six water temperature (15, 20, 22.5, 25, 27.5 and 30°C) and six salinity (20, 24, 26, 28, 30 and 32) conditions. In growth experiments, both species did not grow well at 15°C, and the growth rate also increased with water temperature, showing the maximum growth rate at 25°C (C. polykrikoides: 0.31 d-1, A. affine: 0.43 d-1). However, C. polykrikoides did not grow at low salinity of 20 at 25°C and 27.5°C, and A. affine did not show any difference in growth rate by salinity (p < 0.001). At 30°C, cultured C. polykrikoides cells died within 2 days, while A. affine -
dc.description.uri 1 -
dc.language English -
dc.publisher 환경생물학회 -
dc.relation.isPartOf Harmful Oraganisms 2019 -
dc.title Population development strategy of two dinoflagellates Cochlodinium polykrikoides and Alexandrium affine during the summer in the coastal environments of the southern sea of Korea -
dc.type Conference -
dc.citation.conferencePlace KO -
dc.citation.endPage 43 -
dc.citation.startPage 43 -
dc.citation.title Harmful Oraganisms 2019 -
dc.contributor.alternativeName 임영균 -
dc.contributor.alternativeName 이민지 -
dc.contributor.alternativeName 백승호 -
dc.identifier.bibliographicCitation Harmful Oraganisms 2019, pp.43 -
dc.description.journalClass 1 -
Appears in Collections:
South Sea Research Institute > Risk Assessment Research Center > 2. Conference Papers
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