The structure of the plankton community and the cyanobacterial bloom during the rainy season in mesoeutrophic lake (Lake Juam), Korea

  • Kim, Baik-Ho (Department of Life Science, Hanyang University) ;
  • Hwang, Su-Ok (Paldang Dam Office, Korean Water Resources and Corporation)
  • Published : 2004.06.01

Abstract

강우가 집중하고 남조류가 대발생하던 시기의 중영양호소인 주암호에서 박테리아, 식물플랑크톤, ANF, HNF, 섬모충플랑크톤, 동물플랑크톤과 환경요인들의 변화에 대해 조사하였다. 조사기간동안 우점종은 Cyclotella meneghinana, Aulacoseira granulata, Cryptomonas tetrapyrenoidsa로서 총현존량의 67% 이상을 차지하였다. 조사기간동안 남조류 대발생의 구성원은 현존량 및 종조성에서 크게 변화 하였다. 여름철 강우에 의한 엽록소 a, 수질 (COD, TP)의 변동이 심하였으며, 특히 C. tetrapyrenoidsa는 HNF, nauplii, rotifer, 섬모충의 변동에 매우 밀접한 관계를 보였다. 포식자인 rotifer는 박테리아, 피코플랑크톤이나 ANF같은 소형플랑크톤의 변동과 높은 관계를 보였다.

Keywords

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