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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.
조류생산잠재력조사 방법개발에 의한 육수환경의 부영양화 방지대책에 관한 연구(I) -순수분리종의 형태 및 증식특성-
위인선,나철호,이종빈,주현수 한국환경보건학회 1997 한국환경보건학회지 Vol.23 No.1
The isolation, morphological study and growth characteristics of the algae were investigated from Lake Chuam. The isolated algae were applied the Agal Growth Potential test. The method of isolation and purification of the algae were used to Agar plating(AP), nutrient enrichment(NE), dilution(DI) and micro capillary technique(MC). Total isolated algae were 21 species. They were composed of Cyanophyceae, Dinophyceae, Bacillariophyceae, Euglenophyceae and Chlorophyceae. The numbers of algal strain by isolation technique were highest in dilution(21 species), and those of the rests were showed in order of NE > MC > AP. The sizes of isolated Selenastrum and Scenedesmus were $1.8\pm 1.4 \mu m$, $3.3\pm 0.9 \mu m$ in diameter and $6.4\pm 2.3 \mu m$, $13.6\pm 1.9 \mu m$ in length respectively. The morphology of isolated algae and NIES-collection strain was very similar each other, but the size was smaller isolated algae than that of NIES-collection. The optimum culture condition of isolated Selenastrum and Scenedesmus was about 30$\circ$C(25$\circ$C-35$\circ$C) in temperature and the maximum growth was appeared between 7,000 lux and 8,000 lux in the light intensity. The comparison of $\mu$(specific growth rate) on the concentration of nutrients such as nitrate and phosphate, isolated Selenastrum was appeared maximum it at 1.0 mg $NO_3-N/l$ but NIES-collection strain was showed 95% of maximum it at same nitrate concentration. Maximum g of isolated algae and NIES-collection strain in Scenedesmus onto nitrate concentration were very similar with the result of selenastrum. The specific growth rates of isolated algae and NIES-collection strain on the gradient concentration of phosphate were showed 0.72/day and 0.70/day at 0.02 mg $PO_4-P/l$ in Selenastrum but those of Scenedesmus were appeared 0.61/day and 0.57/day at same concentration $PO_4-P$.