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생태계교란 생물 미국가재(Procambarus clarkii)의 국내 서식과 분포 연구

Distribution of Invasive Alien Species Red Swamp Crawfish (Procambarus clarkii) in Korea

  • 투고 : 2020.11.25
  • 심사 : 2020.12.07
  • 발행 : 2020.12.31

초록

미국가재는 멕시코 북동부 및 미국 중남부가 원산지로, 전 세계에 유입되어 서식처 파괴와 토착종과의 경쟁 등 많은 문제를 야기하고 있다. 본 조사에서 영산강 6개 지점, 만경강 5개 지점, 섬진강 2개 지점 금강 1개 지점에서 확인되었으며, 주요 수계에서 정착 서식하는 것으로 나타났다. 완주군 서봉리와 함평군 모산리는 20개체 이상이 확인되어 비교적 큰 개체군을 형성하고 있을 것으로 추정된다. 높은 이동성과 환경적응력으로 보아 확인된 지점에서 타수계로의 유입 가능성이 매우 높을 것으로 생각되며, 이에 지속적인 확산 현황 파악과 생태계 피해 예방을 위한 지속적 제거 노력이 필요하다.

The red swamp crawfish (Procambarus clarkii) is native to northeastern Mexico and south-central United States. But the species has been introduced to other parts of the world, and cause ecological problems including habitat destruction and competition with indigenous species. In this study, we identified the distribution of P. clarkii in the freshwater system in Korea. P. clarkii were collected in the field sampling and it is assumed that they have settled in major domestic water systems of Korea including six points in the Yeongsangang River, five points in the Mangyeonggang River, two points in the Seomjingang River, and one point in the Geumgang River. In particular, more than 20 individuals were found in Seobongri, Wanjugun and Mosanri, Hampyeonggun, which are believed to form a relatively large population. Considering high mobility and environmental adaptability of the species, the possibility of their dispersal to other water systems is very high. Therefore, continuous monitoring and assessment of their distribution and potential spread are required and effective management to remove them policy is needed to prevent damage in the Korean ecosystem.

키워드

과제정보

본연구는 국립생태원 외래생물연구팀의 연구사업에 의해 수행되었으며, 특히 생태계교란생물모니터링(NIE-법정연구-2020-09)의 사업 지원에 의해 수행되었습니다.

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