Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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Regional and Temporal Characteristics of Aquatic Organism Communities in Rice Paddy Fields, using Submerged Funnel Trap

수중트랩으로 채집된 논 수서생물 군집의 지역 및 시기별 특성

  • 윤성수 (농촌진흥청 국립농업과학원 기후변화생태과) ;
  • 김명현 (농촌진흥청 국립농업과학원 기후변화생태과) ;
  • 어진우 (농촌진흥청 국립농업과학원 기후변화생태과) ;
  • 권순익 (농촌진흥청 국립농업과학원 기후변화생태과) ;
  • 남형규 (농촌진흥청 국립농업과학원 기후변화생태과) ;
  • 송영주 (농촌진흥청 국립농업과학원 기후변화생태과)
  • Received : 2018.03.02
  • Accepted : 2018.04.02
  • Published : 2018.06.30
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Abstract

Extensive monitoring of aquatic organisms in rice paddy fields has been difficult due to laborious sampling methods such as quadrat sampling using a hand net. This study aimed to analyze temporal and regional community compositions of aquatic organisms collected with a less time-consuming sampling method. This method involved using submerged funnel traps in rice paddy fields. Submerged funnel traps were useful for capturing taxa containing species that are indicative of environmental changes and highly mobile species that feed on waterbirds. Fifteen taxa including Ampullariidae, Cobitidae, Chironomidae, Hydrophilidae and Dytiscidae determined the community compositions. Among the major taxa, only Chironomidae resistant to environmental disturbances represented temporal variations of aquatic organism communities in rice paddy fields. Ampullariidae, Dytiscidae, and Hydrophilidae, which are prone to be affected by anthropogenic activities, differed among regions.

기존에 주로 논 수서생물의 채집을 위해 사용된 방형구법과 뜰채법은 높은 노동력을 요구했기 때문에 광범위한 지역을 대상으로 한 모니터링이 어려웠다. 이 연구는 논 수서생물을 보다 신속하게 채집할 수 있는 수중트랩을 사용하여 지역 및 시기별 논 수서생물의 군집 조성을 확인하였다. 수중트랩은 논을 대표하는 수서생물 중 환경 변화를 지표하거나 수조류의 먹이가 되는 이동성이 높은 종이 포함된 분류군을 채집하는 데 유용했다. 사과우렁이과 (Ampullariidae), 미꾸라지과 (Cobitidae), 물벌레과 (Corixidae), 물방개과 (Dytiscidae), 물땡땡이과 (Hydrophilidae), 물달팽이과 (Lymnaeidae) 등 15개 분류군은 논 수서생물 군집 조성을 결정했다. 주요 분류군 중 환경 교란에 강한 깔다구과 만이 논 수서생물 군집의 시기 변화를 대표했다. 인위적인 영향에 민감한 사과우렁이과, 물땡땡이과 그리고 물방개과는 지역별로 분포가 상이했다.

Keywords

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