Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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Fish fauna and characteristics of Misgurnus anguillicaudatus and Aphyocypris chinensis populations in environmentally friendly and conventional paddy fields

관행 논과 친환경 논의 어류상 및 미꾸리와 왜몰개 개체군 특성

  • Jeong Hwan Bang (Climate Change Assessment Division, National Institute of Agricultural Sciences) ;
  • Min-Kyeong Kim (Climate Change Assessment Division, National Institute of Agricultural Sciences) ;
  • Soon-Kun Choi (Climate Change Assessment Division, National Institute of Agricultural Sciences) ;
  • Jinu Eo (Climate Change Assessment Division, National Institute of Agricultural Sciences) ;
  • So-Jin Yeob (Climate Change Assessment Division, National Institute of Agricultural Sciences) ;
  • Myung-Hyun Kim (Planning & Coordination Division, National Institute of Agricultural Sciences)
  • 방정환 (국립농업과학원 기후변화평가과) ;
  • 김민경 (국립농업과학원 기후변화평가과) ;
  • 최순군 (국립농업과학원 기후변화평가과) ;
  • 어진우 (국립농업과학원 기후변화평가과) ;
  • 엽소진 (국립농업과학원 기후변화평가과) ;
  • 김명현 (국립농업과학원 기획조정과)
  • Received : 2022.02.21
  • Accepted : 2022.04.27
  • Published : 2022.06.30
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Abstract

Paddy fields are important habitats for maintaining the biodiversity of agricultural ecosystems. Recently, as the need for safe food and biodiversity conservation has increased, the rice cultivation methods have undergone changes. This study was conducted to investigate the fish fauna in Environmentally Friendly Paddy fields (EFP) and Conventional Paddy fields (CP), and compare the characteristics of Misgurnus anguillicaudatus and Aphyocypris chinensis populations in EFP and CP. A total of 2,703 fish were collected and classified into six families and 13 species. Our results showed that there was a difference in the proportion of fish populations in the two paddy fields, and the number of individuals in EFP was higher than in CP. The weight values of M. anguillicaudatus were higher in EFP than in CP, and the total length, body length, and weight values of A. chinensis were higher in EFP than in CP. Conditional factor(K) values also showed similar trends in EFP and CP. Our results indicate that the farming practices in paddy fields have a significant effect on the characteristics of M. anguillicaudatus and A. chinensis populations, and the results of this study can be used as basic data for securing biodiversity in future agricultural ecosystems.

논은 농업생태계의 생물다양성을 유지시켜주는 중요한 서식지이다. 최근 안전한 먹거리와 생물다양성 보전을 위한 필요성이 증가하여 벼 재배 방식이 변화하고 있다. 본 연구는 관행농업지역 논과 친환경농업지역 논을 대상으로 어류상을 조사하고 영농 방법에 따른 미꾸리와 왜몰개 개체군의 특성을 파악하였다. 어류상 조사 결과, 총 6과 13종, 2,703 개체가 출현하였고, 관행 논과 친환경 논 모두에서 미꾸리와 왜몰개의 높은 개체수 비율을 보였다. 영농 방법에 따른 개체군 특성 조사 결과, 어류의 개체수 비율의 차이를 보였고, 개체 크기별 빈도 분포에서 친환경 논의 개체수가 관행 논보다 높게 나타났다. 미꾸리 개체군의 전장, 체장, 체중을 비교한 결과, 두 지역 간에는 체중에서 유의한 차이가 나타났고, 왜몰개의 경우, 관행 논보다 친환경 논 개체군의 전장, 체장, 체중 값이 높게 나타났다. 전장-체중의 상관관계에서 회귀계수 b 값은 왜몰개보다 미꾸리가 높게 나타났고, 비만도 지수(K)를 분석한 결과, 미꾸리와 왜몰개 모두 관행 논의 K 값보다 친환경 논의 K 값이 높게 나타났다. 따라서 영농 방법에 따라 논에 서식하는 미꾸리와 왜몰개 개체군 특성에 상당한 영향을 주는 것으로 보이며, 본 연구 결과는 향후 농업생태계에서 생물다양성 확보를 위한 기초자료로 활용될 수 있다.

Keywords

Acknowledgement

본 연구는 농촌진흥청 고유연구개발사업(과제번호: PJ01674001)의 지원에 의해 이루어진 것임.

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