생태와환경 (Korean Journal of Ecology and Environment)

한국수생태학회 (The Korean Society of Limnology)
권호 표지

북한 신포지구의 기수호 I. 동물플랑크톤

Brackish Lakes in Shinpo District, North Korea. I. Zooplankton

  • Kang, Yeon-Shik (Environmental Research Group, Korea Electric Power Research Institute) ;
  • Kim, Say-Wa (Division of Environmental Biology, Yong-In University)
  • 발행 : 2003.06.30
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초록

북한 신포지구에 위치하는 3개 호수는(호만포호, 현금호, 대인호)동물플랑크톤 출현 결과와 염분도로 (현금호는 2002년 5월과 10월에 2.8ppt와 0.8ppt, 대인호는 1.5ppt와 0.5ppt) 보아 기수호임이 밝혀졌다. 3개 호수에서 출현한 34종류의 동물플랑크톤 중 요각류와 윤충류가 각각 15종과 7종 동정되었으며 34종류 중 담수종은 24종, 기수종과 해산종은 각각 6종과 4종이었다. 기수성 요각류인 Pseudodiaptomus와 Sinocalanus tenellus는 3개 호수에 모두 분포하고 있었으며 3개 호수 모두에서 기수종과 해산종의 출현양이 동물플랑크톤 출현양의 90%이상을 차지하고 있었다. 5월에 현금호에서 S. tenellus가 입방미터당 59,000개체로 대량 출현하여 이때 기수종과 해산종의 출현양은 전체 동물플랑크톤 출현양의 99%를 넘었다. 연구 지역의 기수호를 보호하기 위한 기초자료를 제공하기 위해서는 장기 조사가 필요한 것으로 나타났다.

Three lakes (lake Homanpo, Hyunkum and Daein) were revealed to be brackish by the results of zooplankton fauna and salinities (2.8 ppt and 0.8 at lake Hyunkum in May and October 2002, and 1.5 and 0.5 at the Daein) in Shinpo district, North Korea. Among 34 taxa of zooplankton occurred, copepods and rotifers showed the prosperity in species number with 15 species and 7 species, respectively. Twenty four taxa of freshwater animals, six brackish ones and four marine ones were found, Brackish copepods, Pseudodiaptomus inopinus and Sinocalanus tenellus, were found in all lakes. More than 90% of zooplankton abundances consisted of brackish and marine species in three lakes. The outburst of S. tenellus was observed (59,000 indiv./$m^3$) at lake Hyunkum in May, when the proportion of brackish and marine zooplankton exceeded 99% of total zooplankton abundance. Long-term monitoring appears to be needed to provide basic data to protect brackish lakes in the study area.

키워드

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