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- 저자 : 최충길 ( In Sun Wui (검색결과 3 건)
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탐진강수계의 (耽津江水系) 수서곤충군집에 (水棲昆蟲群集) 대한 조사연구
위인선,나철호,최충길,백순기 ( In Sun Wui,Chul Ho Ra,Chung Gil Choi,Soon Ki Baik ) 한국하천호수학회 1983 생태와 환경 Vol.16 No.1·2
This study has been carried out to survey the community structure of aquatic insects in the Tamjin River from October, 1981 to August, 1982. Quantitatively collected materials are classified and dominance indices, diversity indices, similarity indices, according to each sites and seasons are mathematic analyzed and to determine the water quality by diversity indices. The results are as follows: 1. The aquatic insect fauna of the Tamjin River is composed of total 93 species, 54 genera, 30 families in 7 orders. 2. Common speices from all the site are 12 species and native species from each site are 24 species. 3. Composition of aquatic insect fauna according to insect order is as follows: Ephemeroptera 44 species, 16 genera in 9 families. Coleoptera 13 species, 10 genera in 6 families. Trichoptera 13 species, 8 genera in 5 families. Plecoptera 9 species, 9 genera in 4 families. Odonata 4 species, 4 genera in 1 families. Megaloptera 3 species, 2 genera in 1 families. 4. Component ratio of the number of individuals according to the insect orders is as follows: Ephemeroptera 68.0% Trichoptera 10.8% Diptera 8.9% Coleoptera 7.4% Plecoptera 4.4% Odonata 0. 6% 5. Epeorus curvatulus is a dominant species in the Tamjin River and Choroterpes trifurcata, Hydropsyche ulmeri, Potamantus sp. nb., Mateopsepheuus japouicus, and Ecdyouurus yoshidae are to make up the greatest population. Dominant indices of this River are 0.269 to 0.584. 6. Diversity indices represent 3.114 in the Tamjin River. 7. Similarity is very high at mid stream, and shows more high similarity between mid stream and lower stream than upper stream. 8. The biological estimation of upper stream of the Tamjin River`s water quality based on diversity indices is oligosaprobic zone and lowor stream belongs to β-mesosaprobic zone.
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영산강상류의 (榮山江上流) 수생곤충 (水生昆蟲) 현존량 (現存量)
위인선,나철호,최충길 ( In Sun Wui,Chul Ho Ra,Chung Gil Choi ) 한국하천호수학회 1974 생태와 환경 Vol.7 No.3·4
1. The present work is to make a standing crops of aquatic insects in the main stream of the Yeong-san River including its upper streams; the Go-su, the Hwang-yong, the Ji-suk and the Gwang-ju. Investigations were carriedout four times; October 26, ` 72 ; May 26-27, ` 73 and June 2, ` 73. 2. Seven separate station were selected, and collected two fold in each station. 3. 6 Orders and 42 Species wereidentified: Ephemeroptera: 26 spp., Odonata: 1 spp., Plecoptera: 3 spp., Trichoptera: 6 spp., Coleoptera: 3 spp. and Diptera: 3 spp. 4. The Standing crops of aquatic insects of the Yeong-san River were shown in Table 2. The results were as follows; 1) The individual numbers were ranged from 22 to 408. 2) Total weight was ranged from 41.6mg to 6,021.4mg. 5. Mataeopsephenus japonicus and Hydropsyche sp. KA were dominant species in all the stations. 6. Of all standing crops in 7 stations, Coleoptera. has the greatest value.
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최충길,황영진,위인선 한국물환경학회 1992 한국물환경학회지 Vol.8 No.3
Acute toxicities of five heavy metal ions on fertilzed eggs of killifish(Oryzias latipes) were measured in terms of median lethal concentration(LC50) and toxicity curve. The LC50 of 24, 48 and 96 hours were 24.00, 19,80 and 19.80 ㎎/ℓ for nickel; 8.30, 6.30 and 4.5㎎/ℓ mercury ; 6.75, 4.20 and 3.50 ㎎/ℓ for cadmium ; 0.68, 0.56 and 0.56 ㎎/ℓ for zinc ; 0.067, 0.065 and 0.065㎎/ℓ for copper respectively. The toxicity curves derived by polotting LC 50 values against the period of exposure, and the results indicate that effect of copper was most toxic followed by zinc, cadmium and mercury, and the effect of nickel was the least.
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