• Title/Summary/Keyword: 주남저수지

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Terrestrial Insect Fauna of the Junam Wetlands Area in Korea (우리나라 주남습지 지역의 육상 곤충상)

  • Ahn, Soo-Jeong;Park, Chung-Gyoo
    • Korean journal of applied entomology
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    • v.51 no.2
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    • pp.111-129
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    • 2012
  • Terrestrial insect fauna was surveyed in the Junam wetland area, which consists of the Junam, Dongpan, and Sannam wetlands, by visual counting and pictures. A sweep net collection was conducted from May to October 2010. A neighburing artificial lotus wetland was also surveyed for comparison. A total of 5,730 insects were surveyed, representing 268 species in 85 families and 12 orders. Sixty-three species of coleopterans were surveyed, followed by 60 species of Lepidoptera, and 37 species of Hemiptera. Coleopteran individuals were 25.9% of the total insect numbers surveyed, comprising most abundant group. This was followed by Odonata, Lepidoptera, and Orthoptera at 22.3%, 15.4%, and 12.7%, respectively. In total, 197 species were surveyed in the Dongpan wetland, 175 in the Junam wetland, and 154 species in the Sannam wetlands. However, only 86 species were surveyed in the artificial lotus wetland. Galerucella nipponensis in Coleoptera, Crocothemis servilia mariannae in Odonata, and Polygonia c-aureum in Lepidoptera were the most abundant in all four wetlands. Community analyses showed that the dominance index was highest in the artificial lotus wetland at 0.25 and lowest in Junam wetland at 0.08. Diversity indices were relatively high in all wetlands at 4.48, 4.44, 4.28, and 3.87 in Junam, Dongpan, Sannam, and the artificial lotus wetland, respectively. The insect fauna similarity index was highest in the Junam and Dongpan wetlands at 0.96. The lotus wetland showed the lowest similarity of the three wetlands with values of 0.45-0.53.

Comparative Analysis of Endophytic Fungi Isolated from Dominant Hydrophytes in Junam and Dongpan Wetland (주남저수지와 동판저수지의 수생식물에서 분리된 내생균류의 비교 분석)

  • You, Young-Hyun;Park, Jong Myong;Han, Kyung-Sook;Park, Jong-Han;Kim, Jong-Guk
    • The Korean Journal of Mycology
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    • v.43 no.2
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    • pp.92-98
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    • 2015
  • Hydrocharis dubia Backer and Salvinia natans All. were sampled from the Junam and Dongpan reservoirs, representative freshwater wetlands of Korea. A total of 19 endophytic fungal strains were isolated from hydrophytes native to the Junam wetlands and 5 strains were isolated from the Dongpan wetlands. Depending on phylogenetic analysis based on internal transcribed spacer (ITS) region, strains from Junam belonged to 11 genera and from Dongpan belonged to 5 genera. Fusarium, Phoma and Talaromyces were commonly distributed genera from two wetlands. The fungal diversity index showed clear differences between each wetlands or each host hydrophyte. Above all, the highest diversity value was observed from Salvinia natans All., which have been reported as promising biological resources as eutrophication controller in environmental ecology.

Considerations for ecotourism planning of Junam reservoir (주남저수지의 생태관광에 대한 고찰)

  • Yoon, Sung-Yoon;Jung, In-Chul
    • Journal of Wetlands Research
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    • v.2 no.1
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    • pp.41-47
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    • 2000
  • 창원시 주남저수지 일대는 세계적인 철새도래지로 주목받고 있으나, 철새로 인한 경제적 피해로 지역민과 환경보전론자 간의 갈등이 심화되고 있다. 따라서 지역민의 이익을 보호하면서도 환경을 보전할 수 있는 대안이 필요하게 되었다. 지역민의 여론을 조사한 결과 지역민들은 철새 피해를 인정하면서도, 철새를 보호해야 한다고 생각하고 있었으며, 환경을 보전하는 관광 개발의 필요성을 제기하였다. 이러한 주민 의견을 반영하여 본 연구에서는 이 지역의 생태관광개발 정책을 수립하였다.

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Relationship between the Behavior Pattern of Wintering Cygnus and Distribution of Nelumbo nucifera (연꽃(Nelumbo nucifera) 확산과 고니류(Cygnus) 월동의 관계 연구)

  • Hong, Suk-Hwan;An, Mi-Yeon
    • Korean Journal of Environment and Ecology
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    • v.30 no.5
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    • pp.848-856
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    • 2016
  • The purpose of this study is to determine the impact on settlement pattern of wintering swans by distribution of rapidly spreading lotus in Junam reservoir. When we investigated the relationship between the spreading lotus and population variation of the wintering swans in all around Nakdong-river estuary, the spreading lotus did not affect the number of swans in Junam reservoir. The occupation ratio of lotus distribution continuously increased from 13.2%(2013) to 19.0%(2014). Before we begin with the investigation, we compared two particular groups: inside of lotus community and far (>100 m) water area from the border of lotus community. At the first survey(2013.12.17), we observed 3.1 times more swan population in the inside, comparing with far water area. The third(2014.01.29.) and fourth(2014.12.03) inquiries also showed respectively 5.5 and 7.5 times higher swan population in the inside and near water area. The second observation was conducted during visitors were increased so these phenomenon was not observed. This result might be explained as the similar environmental condition of habitate for swan and lotus such as less than 1 m water depth. However, we considered that lotus and swan were not relation of conflict due to increasing both lotus community and swan population at the same time. According to the observation that inhabitation density of wintering swans is significantly high in near lotus communities area, at least spread of lotus did not negatively affect the wintering swans.

Principle of Conservation and Counterplan in Junam Reservoir (주남저수지의 보전원칙 및 대책)

  • Yoon, Sung-Yoon
    • Journal of Wetlands Research
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    • v.1 no.1
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    • pp.45-50
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    • 1999
  • Junam reservoir is 1,800,000 pyung of marsh waters. Various migration birds choose to spend their winters at Junam because of its mild climate. Since many rare bird species coexist around this reservoir, which is increased in concern. At the side of residents of Junam reservoir, development opinion is park, This area must be sustainable development so that original function of reservoir may maintain The development direction hope that Junam reservoir's residents increase of the life style and of the income.

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Infection status with trematode metacercariae in the fresh-water fish from Chunamchosuchi (pond), Uichang-gun, Kyongsangnam-do, Korea (경남 의창군 주남저수지산 담수어의 흡충류 피낭유충 감염상)

  • 손운목;최연순
    • Parasites, Hosts and Diseases
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    • v.35 no.3
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    • pp.165-170
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    • 1997
  • The present study was performed to analyze the infection status of trematode metacercariae in fishes caught from Chunamchosuchi (pond) located in Uichang-gun. Kyongsangnam-do. A total of 130 freshwater fish of 5 species was collected by a fish net and fish traps from November, 1995 to May, 1996. They were examined under a stereomicroscope after artificial digestion with pepsin-HCI solution. A total of 8 species or metacercaria, i. e. Clonorchis sinensis, Echinochnsnw japonicas, Cvathocotwle orientalis, Diplostomun sp.. Metorchis orientalis. Holostephcnw nipponicw, Exorchis oviformis and unidentified echinostome, was detected from them. The metacercariae of C. sinenesis were found in 8/20 (40.0%) Accnthorhodeus Qsmwsi, 20/20 (100%) Cutter breuiccudc, 31/45 (68.9) Cultriculus eigenmanni and 21/25 (84.0%) Pseunorasborc pronga, and the average number of metacercariae detected in each fish species were 1.9, 31.7. I5.3, and 73.0. From the above results, it was confirmed that fresh-water fishes from Chunamchosuchi (pond) were highly infected with metacercariae of avian trematode, i.e. C. orientolis, H. nipponicus. M. oui,entnlis, E. jcponicw and Diplostonum sp., and 4 species of fish. P. parvc, C. breuiccudn, C. eigenmnnni and A. asmussi, were infected with metacaecariae of C. sinensis.

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