환경생물 (Korean Journal of Environmental Biology)

  • 제35권4호
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  • Pages.631-639
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  • 2017
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  • 1226-9999(pISSN)
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  • 2287-7851(eISSN)
한국환경생물학회 (Korean Society of Environmental Biology)
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광양만 동물플랑크톤 군집 동태에 영향을 미치는 환경요인

Environmental Factors Affecting Zooplankton Community in Gwangyang Bay

  • 이은혜 (전남대학교 해양기술학부) ;
  • 서민호 (바다생태연구소) ;
  • 윤양호 (전남대학교 해양기술학부) ;
  • 최상덕 (전남대학교 해양기술학부) ;
  • 서호영 (전남대학교 해양기술학부)
  • Lee, Eun Hye (Division of Marine Technology, Chonnam National University) ;
  • Seo, Min Ho (Marine Ecology Research Center) ;
  • Yoon, Yang-Ho (Division of Marine Technology, Chonnam National University) ;
  • Choi, Sang-Duk (Division of Marine Technology, Chonnam National University) ;
  • Soh, Ho Young (Division of Marine Technology, Chonnam National University)
  • 투고 : 2017.10.31
  • 심사 : 2017.12.11
  • 발행 : 2017.12.31
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초록

광양만에서 출현하는 동물플랑크톤에 영향을 미치는 환경요인 (수온, 염분, 엽록소-${\alpha}$ 농도, Noctiluca scintillans 밀도, 규조류 밀도, 와편모조류 밀도)을 이해하기 위해 2015년 11월부터 2016년 5월까지 11개 정점에서 계절조사를 실시하였다. 조사기간 동안 출현한 동물플랑크톤 출현 개체수는 평균 $544{\sim}19,753indiv.\;m^{-3}$였다. 계절별 출현 개체수는 여름에 최대 $40,000indiv.\;m^{-3}$였으며, 가을에 최소 $412indiv.\;m^{-3}$였다. Noctiluca scintillans를 제외한 35개 분류군이 출현하였고, 우점한 동물플랑크톤은 Paracalanus parvus s. l., Corycaeus spp., Oithona spp., Acartia omorii, Acartia ohtsukai, Centropages abdominalis, Unidentified harpacticoids였다. 중복분석(RDA) 결과 광양만의 동물플랑크톤 군집은 봄-가을, 여름, 겨울 그룹으로 나타났다. 여름에 출현한 동물플랑크톤은 수온과 먹이요인에 의해 영향을 받는 반면 겨울에 출현한 동물플랑크톤은 염분과 N. scintillans 밀도에 의해 좌우되었다. 광양만의 동물플랑크톤 군집은 수온, 염분, N. scintillans 밀도, 규조류 밀도에 영향을 받는 것으로 나타났다.

The relationship between the environmental factors (water temperature, salinity, chlorophyll-a concentration, Noctiluca scintillans density, Diatoms and Dinoflagellates densities) and the zooplankton community was investigated. Zooplankton were seasonally collected at 11 stations of Gwangyang Bay from November 2015 to July 2016. A mean abundance ranged from 544 to $19,753indiv.\;m^{-3}$. The maximum abundance was observed to be $40,000indiv.\;m^{-3}$ in July and the minimum occurred in November with $412indiv.\;m^{-3}$. The zooplankton consisted of 35 taxa, which is dominated by Paracalanus parvus s. l., Corycaeus spp., Oithona spp., Acartia omorii, A. ohtsukai, Centropages abdominalis, unidentified harpacticoids. The result of the Redundancy Analysis (RDA) conducted between the zooplankton and the environmental factors showed that the spring-autumn, summer and winter are separated. The summer was closely related to temperature and diatom density, while the winter was linked to salinity and N. scintillans density (p<0.05).

키워드

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