Korean Journal of Ecology and Environment (생태와환경)

The Korean Society of Limnology (한국수생태학회)
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Using Text-mining Method to Identify Research Trends of Freshwater Exotic Species in Korea

텍스트마이닝 (text-mining) 기법을 이용한 국내 담수외래종 연구동향 파악

  • Do, Yuno (Department of Biological Sciences, Pusan National University) ;
  • Ko, Eui-Jeong (Department of Biological Sciences, Pusan National University) ;
  • Kim, Young-Min (Department of Biological Sciences, Pusan National University) ;
  • Kim, Hyo-Gyeom (Department of Biological Sciences, Pusan National University) ;
  • Joo, Gea-Jae (Department of Biological Sciences, Pusan National University) ;
  • Kim, Ji Yoon (Department of Biological Sciences, Pusan National University) ;
  • Kim, Hyun-Woo (Department of Environmental Education, Sunchon National University)
  • 도윤호 (부산대학교 자연과학대학 생명과학과) ;
  • 고의정 (부산대학교 자연과학대학 생명과학과) ;
  • 김영민 (부산대학교 자연과학대학 생명과학과) ;
  • 김효겸 (부산대학교 자연과학대학 생명과학과) ;
  • 주기재 (부산대학교 자연과학대학 생명과학과) ;
  • 김지윤 (부산대학교 자연과학대학 생명과학과) ;
  • 김현우 (순천대학교 사범대학 환경교육과)
  • Received : 2015.05.29
  • Accepted : 2015.09.17
  • Published : 2015.09.30
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Abstract

We identified research trends for freshwater exotic species in South Korea using text mining methods in conjunction with bibliometric analysis. We searched scientific and common names of freshwater exotic species as searching keywords including 1 mammal species, 3 amphibian-reptile species, 11 fish species, 2 aquatic plant species. A total of 245 articles including research articles and abstracts of conference proceedings published by 56 academic societies and institutes were collected from scientific article databases. The search keywords used were the common names for the exotic species. The $20^{th}$ century (1900's) saw the number of articles increase; however, during the early $21^{st}$ century (2000's) the number of published articles decreased slowly. The number of articles focusing on physiological and embryological research was significantly greater than taxonomic and ecological studies. Rainbow trout and Nile tilapia were the main research topic, specifically physiological and embryological research associated with the aquaculture of these species. Ecological studies were only conducted on the distribution and effect of large-mouth bass and nutria. The ecological risk associated with freshwater exotic species has been expressed yet the scientific information might be insufficient to remove doubt about ecological issues as expressed by interested by individuals and policy makers due to bias in research topics with respect to freshwater exotic species. The research topics of freshwater exotic species would have to diversify to effectively manage freshwater exotic species.

본 연구는 국내 담수외래종의 연구동향을 파악하기 위해서 비정형 데이터로부터 키워드 간의 연계성을 파악하는 데 적합한 텍스트마이닝 (text-mining)기법을 이용하였다. 환경부가 지정한 담수외래종 17종 (포유류 1종, 양서 파충류 3종, 어류 11종, 식물 2종)의 학명과 국명 또한 일반 검색어로 이용하여 56개의 국내 학회 및 기관에서 발행된 총 245편 논문을 개체군 수준에서 분석하였다. 담수외래종에 대한 연구는 90년대에 증가하여 2000년대 이후 감소하는 양상을 보였으며 외래종의 생리 및 발생에 대한 연구가 분류, 생태에 대한 연구보다 유의하게 많았다. 특히, 무지개 송어 (44%/전체 논문편수), 나일틸라피아 (19%), 이스라엘 잉어 (8%), 은연어 (4%)와 같이 수산자원으로 이용하기 위해 도입된 종들에 대한 연구가 많았다. 하지만 담수외래종의 생태적 특성과 분포, 행동에 대한 연구는 뉴트리아와 큰입우럭, 황소개구리로 제한되어 있고 연구 수 역시 생리 및 발생 관련 연구에 비해 적었다. 지금까지 담수외래종들의 위해성과 문제점은 계속 제기되고 있지만, 분석 결과 연구 주제가 편향되어있어 그들의 생태적인 문제를 해결하기에는 정보가 부족한 것으로 보인다. 담수외래종의 효과적인 관리를 위해서는 그들에 대한 다각적인 접근과 폭넓은 연구주제의 설정이 필요하다.

Keywords

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