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한국산 (韓國産) 수서곤충의 (水棲昆蟲) 환경오염물질에 대한 내성 (耐性) 및 감수성 연구
나철호,최충길,백순기 ( Chul Ho Ra,Chug Gil Choi,Soon Ki Paik ) 한국하천호수학회 1986 생태와 환경 Vol.19 No.1·2
The aquatic insects of mayflies (Ephemeroptera) and stoneflies (Plecoptera) which inhabited in Yo^˘ngsan and Tamjin rivers were identified, and sensitivity, tolerance range, and pollution tolerance index associated with identified each species on the environmental pollutants were investigated. Also in order to use as indicator organisms, nine species were selected and the optimal BOD_5 value and relative frequency of occurance were computed and examined. Thirty species of mayflies and twentytwo species of stoneflies were identified. Potamanthus sp. NB and Ecdyonurus yoshidae tolerated in low pH level of 5. 5. E. yoshidae, Ephemerella rufa and Cloeon dipterum tolerated in waters with high nutrient concentration. P, sp. NB, E. rufa and C. dipterum also tolerated in organically polluted and low dissolved oxygen concentration waters. Tolerant species to high water temperature of above 30℃ was E. rufa and stoneflies, Alloperla granulata and Phasaganophora capitata occured at low water temperature in 5℃ to 15℃ limitted. Tolerant species to the turbidity of above 20 NTU were Baetis sp. KA and Tadamus sp. The pollution tolerance indices of mayflies and stoneflies were range from 0.5 to 5 and 0 to 2, respectively. P. sp. NB and E. rufa showed the highest optimal BOD_5 value of 10.5㎎/ℓ, at that concentration, their relative frequencies of occurance were 29.6% and 57.2%, respectively. Three species of stoneflies were range from 1.4 to 1.5 ㎎/ℓ and 40.1 to 46.5%.
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