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광양천의(光陽川) 수서곤충에 (水棲昆蟲) 대한 생태학적 연구
나철호,조영관 ( Chul Ho Ra,Young Gwan Cho ) 한국하천호수학회 1986 생태와 환경 Vol.19 No.1·2
This ecological studies carried out to survey the insect fauna, community structure, standing crop and environmental factors of the aquiatic insects in the Kwang`yang stream, from January to September, 1985. The aquiatic insect fauna in the Kwang`yang stream is composed of total 154 species, 78 genera, 41 families, 10 orders. The indigenous species in the Kwang`yang stream are Isotomutus schaefferi, Archisotoma sp., Dipteromimus tipulifomis, Strophopteryx faciata, Arctopsyche maculata, A. sp. A, A. sp. B, A. sp. D, Luciola cruciata, Culiodes sp. KA. The percentage of standing crop according to the insect orders are as follows; Ephemeroptera 39.9%, Odonata 2.9%, Plecoptera 8.7%, Megaloptera 12.2%, Trichoptera 28.5%, Coleoptera 2.0%, Diptera 5.5%, Others 0. 3%. In the monthly variation of standing crop, the highest on February (62.8g) and the lowest on August (4.6g). Seasonal variation of standing crop is showed high in winter and spring (24.8∼62.8g), but low in summer and autumn (4.6∼16.1g). According to the surveyed sites, standing crop showed to tendency high at upper (27. 8∼64. lg) and low at lower stream (2.3∼5. 2g), respectively. Epeorus latifolium was a dominant species in the surveyed area. Dominance indices of the upper stream showed low value of 0. 244∼0. 319 and that of the lower stream showed high value of 0.459∼0.839. Species diversity indices represented 4.160 in the Kwang`yang stream, among them, 2. 925∼4. 120 at upper stream, 2. 695∼3.123 at mid stream and 1.023∼1.703 at lower stream. By similarity value, the Kwang`yang stream is divided the three distinctive regions, upper, mid and lower stream, respectively.
보성강 (寶城江) 및 이사천 (伊沙川) 수계의 (水系) 수서곤충 (水棲昆蟲) 군집에 (群集) 관한 연구
나철호,백순기,조영관,황수옥 ( Chul Ho Ra,Soon Ki Baik,Young Gwan Cho,Su Ok Hwang ) 한국하천호수학회 1989 생태와 환경 Vol.22 No.2
The aquatic insect fauna and their community structure in the Poso^˘ ng River System and Isa stream in Chonnam, Korea was studied from August 1987 to April 1988. The total number of taxa was 99 species, 54 genera, 22 families in 8 orders in the Poso^˘ ong River System and 62 species, 39 genera, 21 families in 8 orders in the Isa stream. The major groups were Ephemeroptera and Trichoptera in two catchment. The fauna was dominated numerically by Ephemeroptera (47%) in the Posoo^˘ ng River System and by Trichoptera (61%) in the Isa stream. Ephemeroptera, Trichoptera and Diptera were relatively more abundent during the spring season. Mostly Dominant species belonged to Ephemeroptera and Trichoptera in the Posoo^˘ ng River System and in the Isa stream was Hydropsyche orientalis. Dominant indices ranged from 0.19 to 0.95 in the surveyed stream. Species diversity indices showed 1.97-3.45 in studied stream.
무등산 (無等山) 주료 계곡에 서식하는 수서곤충 (水棲昆蟲) 군집에 (群集) 계절 변화에 관한 연구
나철호,백순기,조영관 ( Chul Ho Ra,Soon Ki Baik,Young Gwan Cho ) 한국하천호수학회 1991 생태와 환경 Vol.24 No.1
The total taxa of aquatic insects in main valley of Mt. Mudu^˘ ng were 75 Species, 51 Genera, 28 Families in 7 Orders. Among them, Ephemeroptera containing 23 species (31%), Plecoptera 20 species and Trichoptera 20 species were major groups. Especially, 10 species of Haptageniidae and 11 species of Rhyacophilidae were occurred. And also, in most cases their habitat was stream of mountain valley. In proportion of individuals at these three valleys, Ephemeroptera was the highest (30%), Plecoptera and Trichoptera were over 20% respectively. The seasonal number of collected species was similar, that is, 41 species occurred in Autumn, 46 species in Winter, 51 species in Spring and 45 species in Summer. Mostly dominant species were belonged to Ephemeroptera and Plecoptera. Above all, Epeorus curvatulus and Oyamia coreana were dominant species. And dominant indices ranged from 0.23 to 0.75. Species diversity indices showed 2.07∼4.29.
나철호,위인선,이종빈,조영관,김종선 ( Chul Ho Ra,In Sun Wui,Jong Bin Lee,Young Gwan Cho,Joung Sun Kim ) 한국하천호수학회 1992 생태와 환경 Vol.25 No.2
This study was examined to clarify on food habits and relationships about 4 species of superfamily Sublipalpia in Plecoptera (Insecta). Oyamia coreana fed mainly on young nymphs of Chironomidae and Heptageniidae and feeding amount of each foregut was 3∼7 individuals of Chironomidae. Paragnetina flavotincta fed on 1∼2 individuals of Heptageniidae, 1∼3 of Baetidae and 6∼9 of Chironomidae. Kiotina decorata fed on 2∼3 individuals of Heptageniidae. Megarcy ochracea fed on Chironomidae and Heptageniidae and feeding amount of each foregut was about 20 individuals of Chironomidae. Actively feeding season of these species is spring, where as, inactive in fall. Food selection except Kiotina decorata which had preference for Heptageniidae (electivity, +0.6) had for Chironomidae (+0.4∼0.8), but all of them avoided plant materials and aquatic insects of which head capsule width was over 2.0 mm.
지리산 (智異山) 뱀사골 강도래목 유충의 계절 및 고도에 따른 분포
나철호,조영관,김종선 ( Chul Ho Ra,Young Gwan Cho,Jong Sun Kim ) 한국하천호수학회 1991 생태와 환경 Vol.24 No.2
The seasonal and altitudinal distribution of the Plecoptera nymphs in Paemsagol valley were studied from October 1986 to August 1987. Total number of species identified was 19 species representing 17 genera in 9 families. The seasonal variation was showed 12 species on spring and winter, 10 species on autumn and 5 species on summer, respectively. Scopura laminata occurred in over the elevation of 700 m. Taenionema KUb and T. KUc are only occurred in the elevation of 1,000 m. According to the increasing altitude, the number of individuals of Taenionema KUa, Yoraperla KUa and Megarcys ochracea were increased, but Oyamia coreana and Pteronarcys saccharina were decreased. Predominantly occurring species in the number of individuals were Yoraperla KUa, Taenionema KUa, Sweltsa nikkoensis, and in biomass were Paragnetina flavotincta, Kamimuria KUa, Megarcys ochracea and Paragnetina flavotincta.
동복천수계에 서식하는 수서곤충의 (水棲昆蟲) 군집에 (群集) 관한 연구
조영관,백순기,김종선,나철호 ( Young Gwan Cho,Soon Ki Baik,Jong Sun Kim,Chul Ho Ra ) 한국하천호수학회 1993 생태와 환경 Vol.26 No.4
The total taxi of aquatic insects in the Tongbok stream were 78 species, 54 genera, 29 families in 8 orders. Among them, major groups were mayflies(24 species) and caddiesflies(17 species). The seasonal species number of collected specimen were similar, that is, they occurred 44 species in winter, 45 species in spring and summer respectively, and 39 species in autumn. In proportion of individuals at this surveyed stream, caddisflies were the highest(42%) and mayflies were 30%. Mostly dominant species were belonged to caddisflies and mayflies. Above all, Hydropsyche KUb and serratella rufa were dominant species. Dominant indices ranged from 0.25∼0.88. Species diversity indices showed 1.14∼4.29.
황용강수계에서의 (黃龍江水系) 저서동물의 (底棲動物) 계절적 분포와 생물학적 수질평가에 관한 연구
조영관,배석진,백순기,나철호 ( Young Gwan Cho,Seok Jin Bae,Soon Ki Baik,Chul Ho Ra ) 한국하천호수학회 1996 생태와 환경 Vol.29 No.3
The benthic macroinvertebrates in the Hwangryong river occurred 51 species, 42 genera, 26 families, 10 orders, 5 classes in 3 phyla. Among them, aquatic insects containing 44 species were the major group comparing 84.6% of the whole. In particular, a great many Ephemeroptera containing 17 species occurred and Megaloptera were found only in 2 species. Also, there were 4 species of Trichoptera. The comparison of species at each site revealed the largest number of 29 species at site 2 and 3 respectivly, and the smallest was 18 species at site 1. The seasonal number of collected species were similar, as followers; 30 species occurred in winter, 25 species in spring, 28 species in summer, and 22 species in autumn. On comparing individual numbers in this survey, Ephemeroptera were the highest (50%) and Trichoptera were 37%. The most dominant species belonged to Trichoptera and Ephemeroptera. Above all, Uracanthella rufa and Cheumatopsyche brevilineata were dominant. Dominant indices ranged from 0.46 to 0.94. Species diversity indices ranged from 1.04 to 3.00. According to the saprobic system based on the species diversity indices of benthic macroinvertebrates, water quality was β-mesosaprobic in each site. The biological water quality as biotic indices was evaluated from α- to β-mesosaprobic, the pollution indices evaluated β-mesosaprobics, the simple water quality evaluation revealed secondary water quality criteria and the GPI evaluated ranged from oligosaprobics to β-mesosaprobics. The biological water quality evaluation by these indices proved similar to the results of chemical analysis.
저서동물을 (底棲動物) 이용한 증암천 (甑岩川) 상류 하천의 생물학적 수질평가
조영관,박병훈,백순기,김종선,나철호 ( Young Gwan Cho,Byoung Hoon Park,Soon Ki Baik,Jong Sun Kim,Chul Ho Ra ) 한국하천호수학회 1996 생태와 환경 Vol.29 No.3
The taxa of benthic macroinvertebrates in the upper region of the Cheungam stream was composed of 76 species, 61 genus, 41 families, 13 orders, 4 classes in 3 phyla. Among them, aquatic inserts containing 71 species (93%) were the major group. According to order, Ephemeroptera containing 26 species was abundant, and Trichoptera containing 19 species, Plecoptera 13 species an? Diptera 11 species were the major taxa. The seasonal species number of collected specimens was most numerous in spring (57 species) and similar in other seasons (41∼44 species). On the one-to-one propotion, Ephemeroptera were the highest (52%), and Trichoptera was 19%, Diptera 16%, Plecoptera 9%. DOminant Species were Epeorus, Cincticostella castanea, Serratella rufa and Hydropsyche belonging to Ephemeroptera and Trichoptera. Dominant indices ranged from 0.34∼1.00. Species diversity indices showed 0.00∼3.82. According to saprobic system based on the species diversity indices, water quality was evaluated to be oligosaprobic and β-mesosaprobics. The biological water quality as in biotic and pollution indices was evaluated oligosaprobic in site 1, 2 and 6 and β-mesosaprobics in site 3, 4 and 5.