Benthic Macroinvertebrates Fauna of Mt. Chilbo

Benthic macroinvertebrates fauna was investigated at the Mt. Chilbo, Gyeonggi-do, Korea, from June to October, 2019. 4 sites located around the Mt. Chilbo were selected for quantitative (surber net: 30×30cm, mesh size: 1mm) of benthic macroinvertebrates. Including qualitative sampling, total 39 species, 31 families, 12 orders, 6 classes in 4 phyla occurred. Insecta was composed of 6 species in Ephemeroptera, 4 species in Odonata, 1 species in Hemiptera, 2 species in Coleoptera, 9 species in Diptera and 5 species in Trichoptera. Non-insecta was 12 species composed of 1 species in Platyhelminthes, 4 species in Mollusca and 2 species in Annelida 5 species in Crustacea. The dominant species and the subdominant species based on individual abundance were Chironomidae sp. and Physa acuta with 20.4% and 18.7% of dominance respectively. McNaughton’s dominanace indices, Shannon-Weaver’s diversity indices, Margalef’s spesies richness indices and Pileou’s evenness indices, Kong