함안천 취수보 상․하류의 생태 환경 평가

A survey on the ecological environment of upstream and downstream of weirs in the Ham-an river was carried out from June to October, 2006. The flow rates and water qualities of the upstream and downstream of the weir with fish-way were similar for the first and second survey, except a small increase in the flow rate of the upstream in the first survey. The surveys showed a total flora of 29 families, 61 genera, 14 variants, 67 species, and 81 subspecies. The flora of the weir with fish-way appeared to have 26 families, 55 genera, 11 variants, 59 species, while that of the weir without fish-way to have 14 families, 30 genera, 10 variants, 27 species, and 38 subspecies. The fish fauna of the upstream of weir with fish-way appeared to have 3 families, 8 species, 184 individuals, while that of the downstream of weir to have 5 families, 14 species, 664 individuals. The fish fauna of the upstream of weir without fish-way appeared to have 3 families, 9 species, 107 individuals, while that of the downstream of weir to have 9 families, 19 species, 520 individuals. The survey disclosed a total benthos of 3 phyla, 4 classes, 9 orders, 25 families, 44 species, 633 individuals.