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자료유형
학술저널
저자정보
저널정보
한국환경생물학회 환경생물 환경생물 제31권 제1호
발행연도
2013.1
수록면
37 - 44 (8page)

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초록· 키워드

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This study was to investigate water quality and biotic community characteristics in Juam Lake. In water quality, water temperatures was 3.8~21.2􀆆C, 6.7~8.6 in pH, 64~76 μs cm-1 in Conductivity, 5.3~13.2 mg L-1 in DO, 2.5~3.3 mg L-1 in COD, 1.0~5.1 mg L-1 in SS, 0.622~0.841mg L-1 in T-N, 0.007~0.019 mg L-1 in T-P and 2.8~8.8 mg m-3 in Chl-a. Revised Carlson’s Index (TSIm) assessment using total phosphorus (TP) and chlorophyll-a domonstrated that the trophic states of Juam Lake were rated as mesotrophic. A total of 53 species of phytoplankton were identified. They were 28 Bacillariophyceae, 13 Chlorophyceae, 3 Cyanophyceae, and 9 Other algal taxa. The standing crops of phytoplankton was ranged from 113 cells mL-1 to 2,909 cells mL-1. A total of 16 species of zooplankton were identified (10 rotifers, 4 cladocerans and 2 copepods). Total zooplankton abundance was 309 ind. L-1 to 435 ind. L-1. The collected benthic macroinvertebrates from the surveyed sites in Juam Lake were 1,038 individuals, 33 species, 21 families and 12 orders. A dominant species was Uracanthella rufa and a subdominant species was Ecdyonurus kibunensis. Hydrophytes recorded from Juam Lake were identified 9 taxa. Emerged plants, floating plants among the hydrophytes was classified 8, 1 taxa, respectively. Ecosystem disturbance wildplant by Environment Ministry found were Paspalum distichum var. distichum and Ambrosia artemisiaefolia. A total of 30 species (6 families) were collected fishs from Juam Lake. There were 10 Korean endemic species (33.3% of collected species number) and 3 exotic species (10.0%).

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