합천 못재늪의 식물성 플랑크톤군집
Fhytoplankton community of Mo미 ae-neup at Hapchùn gun, Korea
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Abstract
The community of phytoplankton, dominant species and environmental factor were investigated in Motjae-neup from January to September, 1996. A total 45 taxa were identified during the investigation period and composed of 5 classes, 8 orders, 13 families, 24 genera, 37 species, 6 varieties, 2 formation. The most important group was Chlorophyceae with 19(42.2%) taxa, followed by the Bacillariophyceae with 13(28.9%) taxa, Euglenophyceae with 7056%) taxa, Cyanophyceae with 5(11.1%) taxa and Dinophyceae with 1(2.2%) taxon. Frustulia rhomboides, Eunotia lunaris, and Stauroneis anceps were important dominant species at Motjae~neup. The common species of all season are Microsystis aeruginosa, Melosira vanans, Frustulia rhomboides, Pinnularia braunii var amphicephala, Stauroneis anceps. Ranges of the environmental factors were measured temperature, 31~381; water temperature, 3.31~26.51; pH, 5.7~6.38 BOD, 4.3~19.6; chlorophyll a, 6.9 ~25.9; SS ， 26~52; COD, 24~46; total-N, 0.9538~2.3036; total-P, 0.1057~0.1909 ; electron conductivity, 25.5~109.