Korean Journal of Ecology and Environment (생태와환경)

The Korean Society of Limnology (한국수생태학회)
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A Study on the Import Status of Pet Freshwater Crayfish and Potential Invasive Alien Species Crayfish in Korea

국내 담수산 애완가재 수입현황 및 잠재적 침입외래종 가재에 관한 연구

  • Youngjun Park (Invasive Alien Species Team, National Institute of Ecology) ;
  • Yonglak Jeon (National Ecosystem Survey Team, National Institute of Ecology)
  • Received : 2023.08.28
  • Accepted : 2023.09.24
  • Published : 2023.09.30
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Abstract

The aquarium pet trade is a source of potentially invasive crayfish species, which can be subsequently intentionally or unintentionally introduced into new environments. There were 34 species of freshwater crayfish imported into Korea for ornamental purposes. Starting with 1 species in 2008, it shows a trend of continuous increase every year with the maximum of 25 species in 2020. The number of freshwater crayfish imported into Korea for ornamental purposes was 1,172,159, with an annual average of 78,144 being imported. The population also recorded a record high in 2017 with a 38% increase in population imports compared to the previous year. Among the 34 pet crayfish imported into Korea, four species classified as high-risk and managed in the US and Europe were American crayfish (Procambarus clarkii), Cherax quadricarinatus, Cherax cainii, and Cherax destructor. In addition to American crayfish (P. clarkii), 3 types of high-risk invasive crayfish are designated as legally managed species by conducting an ecological risk assessment, raising awareness among importers, retailers and consumers through awareness-raising education on freshwater crayfish, and measures for route management such as species identification and improvement of labeling methods are needed.

Keywords

Acknowledgement

본 연구는 국립생태원의 외래생물 전국서식실태조사 (NIE-법정연구-2023-12) 및 미국가재 생태계위해성 조사 및 관리방안 마련(NIE-수탁연구-2023-95)의 사업 지원에 의해 수행되었습니다.

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