Korean Journal of Ecology and Environment (생태와환경)

The Korean Society of Limnology (한국수생태학회)
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Study on Response-Species of Zooplankton to the Seasonal Changes of Precipitation and Temperature

계절적인 강우와 기온의 변화에 따른 동물플랑크톤의 반응 종에 관한 연구

  • 송영희 (한양대학교 자연과학대학 생명과학과) ;
  • 이원철 (한양대학교 자연과학대학 생명과학과) ;
  • 곽인실 (한양대학교 자연과학대학 생명과학과)
  • Published : 2003.03.31
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Abstract

Response-species of zooplankton on precipitation and temperature were investigat-ed in the tributaries of Han River from May to November, 2002. Total 42 species(Rotifer twenty three species, Cladocera ten species, Copepoda eight species and Protozoa one species) were collected in the target location. The highest abundance and the number of species were observed in May. Due to the summer precipitation the abundance of Rotifer and Cladocera were largely decreased in August. Dominant species of Rotifer appeared Brachionus urceolaris, Euclanis dilatata, Lecane Inua, Brachionus quadridentatus and Brachionus calyciflorus in May, Monostyla bulla and Conochilus unicornis in August and Brachionus quadridentatus, Euclanis dilatata and Lecane Iuna in November. Also, the dominant species of Cladocera were Moina weismanni, Simocephalus vetulus, Scapholebris aucrgnafa, Chydorus sphaericus in May, Chydorus sphaericus, Scapholebris mucronata in August, Chydorus sphaericus and Alona rectangular in November. Nearest neighbour clustering was implemented for classification of zooplankton abundance indifferent month of survey locations. The patterning of May and November appeared similar but August was different.

2002년 5월부터 11월까지 한강지류를 대상으로 강우와 기온에 따라 반응하는 분류군과 종을 조사하였다. 윤충류 (Rotifer) 23종, 지각류 (Cladocera) 10종, 요각류(Copepoda) 8종 그리고 원생동물(Protozoa) 1종으로 총42종이 조사되었다. 조사기간 중 5월이 가장 높은 풍부도와 다양한 종이 출현하였다. 조사지에 따라 차이는 있으나 여름 강우로 지각류와 윤충류의 풍부도가 크게 감소하였다. 가장 높은 풍부도를 보였던 윤충류의 5월 우점종은 Brachionus urceolaris, Euclanis dilatata, Lecane luna, Brachionus quadridentatus, Brachionus calyciflorus였다. 8월에는 Monostyla bulla, Conochilus unicornis가 11월에는 Brachionus quadridentatus, Euclanis dilatata, Lecane luna가 다수 출현하였다. 지각류는 5월에 Moina weismanni, Simocephalus vetulus, Scapholebris mucronata, Chydorus sphaericus가 8월에는 소수의 Chydorus sphaericus, Scapholebris mucronata가 11월에는 Chydorus sphaericus, Alona rectangula가 우점을 이루었다. 클러스트링 (nearest neighbour clustering)을 통해 5월과 11월의 조사지에 따른 유형은 유사하였으나 8월은 다른 양상을 보였다.

Keywords

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