Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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Variation in Copepod Abundance Due to Tidal Current Near Sonanjido (Is.) in the Yellow Sea

황해 소난지도 인근해역에서 조류(潮流)에 따른 요각류 개체수의 변화

  • 김웅서 (한국해양연구원 해양자원연구본부) ;
  • 장민철 (한국해양연구원 장목분원)
  • Published : 2001.06.01
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Abstract

Although tidal current affects the distribution of zooplankton significantly, its impacts were usually ignored when the studios on the zooplankton abundance were conducted even in the Yellow Sea where tidal current was very strong. Furthermore, information on the tidal impacts was very limited in the Yellow Sea. In this study, the tidal current effects on the abundances of copepod genera Acartia, Calanopia, Calanus, Centropages, Corycaeus, Labidocera, Paracalanus, Tortanus in a fixed sampling station near the Sonanjido (Island) were studied. The abundance of copepods collected by the same sampling method nab highest when the tidal current was fastest at 2 or 3 hours after the high or low tide.

조류는 동물플랑크톤 분포에 다양한 영향을 미치고 있으나 황해처럼 조류가 빠른 곳에서 동물플랑크톤 분포를 조사하는 경우에도 조류의 영향을 무시하고 하는 경우가 많았다. 뿐만 아니라 황해에서 조류의 영향에 따른 동물플랑크톤의 개체수 변화 자료는 많지 않다. 본 연구에서는 강한 조류의 영향을 받는 소난지도 인근해역에서 시간에 따라 동물플랑크톤 가운데 우점하는 Acartia, Calanopia, Calanus, Centropages, Corycaeus, Labidocera, paracalanus, Tortanus 속에 속하는 요각류의 개체수가 어떻게 변하는지를 조사하였다. 조석 변화에 따른 조류의 유속은 요각류 개체수의 최대 3.5배 차이를 유발하였으며, 대체로 유속이 가장 빠른 저조나 고조 2-3시간 후 채집된 요각류의 개체수가 증가하는 양상을 보였다

Keywords

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