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.

서 론
재료 및 방 법
결 과
    1. 민물가재 국내 수입현황
    2. 수입종
    3. 고위험군
고 찰

• 박영준(국립생태원 외래생물팀) | Youngjun Park (Invasive Alien Species Team, National Institute of Ecology, Seocheon 33657, Republic of Korea) Corresponding author
• 전용락(국립생태원 자연환경조사팀) | Yonglak Jeon (National Ecosystem Survey Team, National Institute of Ecology, Seocheon 33657, Republic of Korea)