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보문 오십천의 (五十川) 수서곤충군집에 (水棲昆蟲群集) 관한 연구
정동수,김동상,윤일병,변종욱 ( Dong Soo Jung,Dong Sang Kim,Il Byong Yoon,Jong Uk Byun ) 한국하천호수학회 1983 생태와 환경 Vol.16 No.1·2
The present study has been made on the aquatic insect community in the Osib River during the period from May 9 to July 11 in 1982. The results are as followss; 1. The aquatic insects in the Osib River are composed of total 85 species, 55 genera, 29 families in 9 orders. 2. The numbers of species according to order are listed in order of abundance as follows: Ephemeroptera: 34 species, 15 genera in 8 families Trichoptera: 18 species, 14 genera in 7 families Diptera: 18 species, 12 genera in 4 families Coleoptera: 5 species, 4 genera in 3 families Plecoptera: 5 species, 5 genera in 2 families Hemiptera: 2 species, 2 genera in 2 families Odonata: 1 species, 1 genus in 1 family Megaloptera: 1 species, 1 genus in 1 family Lepidoptera: 1 species, 1 genus in 1 family 3. The percentages of individual numbers/m² according to order in the Osib River are as follows: Ephemeroptera 48.1% Trichoptera 37.5% Diptera 13.2% Others 1.2% 4. The dominant species differ with stations in the upper stream, but those in the main stream are Stenopsyche marmorata. 5. The species diversity indices of each station range from 0.32 to 3.80. Those of station 4 are lowest. 6. Cheonduri(St.4) is much polluted station due to the waste water and the coal dust from coal mines and the drainage from Dogye Eup, So that the aquatic insects collected at that station are only 4 species of Diptera and the species diversity indices are very low.
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