성주산 일대의 저서성 대형무척추동물상

Benthic macroinvertebrate fauna was investigated at Mt. Seongju, Boryeong, Chungcheongnam-do, Korea from August to September, 2013. 7 sites which are located around Mt. Seongju were selected for quantitative (Surber net: 30×30 cm, mesh size: 1 mm) and qualitative (hand net) sampling of benthic macroinvertebrates. Including quantitative and qualitative sampling, a total of 73 species, 38 families, 14 orders, 6 classes and 4 phyla occurred. Insecta included 66 species composed of 19 species in Ephemeroptera, 2 species in Odonata, 7 species in Plecoptera, 4 species in Coleoptera, 14 species in Diptera, and 18 species in Trichoptera. Non-insect macroinvertebrate included 7 species composed of 1 species in Platyhelminthes, 2 species in Mollusca, 2 species in Annelida, and 2 species in Crustacea. The dominant species and the subdominant species based on individual abundance were Baetis fuscatus and Gammarus sp. with 16.6% and 13.3% of dominance respectively. Dominance indices, diversity indices, richness indices and evenness indices of the benthic macroinvertebrates community showed the range of 0.27∼ 0.83, 1.60∼4.06, 3.13∼5.13 and 0.36∼0.84 respectively.