This study analyzed the community structure of benthic macroinvertebrates in both the natural habitat and artificial habitat of Sohan Stream, the only known habitat of Prasiola japonica in Korea, and investigated their relationship with the changes of P. japonica. During the survey period, Sohan Stream exhibited an average flow velocity of 1.34 m s-1, a slightly alkaline water quality with a pH of 8.00, and a substrate dominated by cobble, providing a suitable environment for the growth of P. japonica. A total of 29 species were identified in the natural habitat, and 31 species were observed in the artificial habitat, with Ephemeroptera and Trichoptera as the dominant taxa in both habitats. Notably, as the habitat area of P. japonica decreased, the abundance of Ephemeroptera also declined, whereas the abundance of Trichoptera showed an opposite trend by increasing. This suggests that Trichoptera larvae may have a competitive advantage over P. japonica for space, potentially impacting the growth of P. japonica. The findings provide important ecological baseline data for the conservation of natural habitats and the development of strategies for the artificial propagation of P. japonica.

Abstract
서 론
재료 및 방 법
    1. 조사지점 및 시기
    2. 서식 환경 및 생물상 조사
    3. 군집 및 섭식기능군 분석
결과 및 고 찰
    1. 민물김 서식지의 환경 특성
    2. 저서성 대형무척추동물 군집 및 섭식기능군 분석
    3. 민물김과 저서성 대형무척추동물의 상호작용
결 론
적 요
REFERENCES

• 김수진((주)케이에코) | Su Jin Kim (K-ECO Inc., Chuncheon 24215, Republic of Korea)
• 신우진((주)케이에코) | Woo Jin Shin (K-ECO Inc., Chuncheon 24215, Republic of Korea)
• 송행섭((주)케이에코) | Haeng Seop Song (K-ECO Inc., Chuncheon 24215, Republic of Korea)
• 변진수((주)케이에코) | Jin Su Byun (K-ECO Inc., Chuncheon 24215, Republic of Korea)
• 박정호((주)케이에코) | Jung Ho Park (K-ECO Inc., Chuncheon 24215, Republic of Korea) Corresponding author
• 김동삼(민물김연구센터) | Dong Sam Kim (Samcheok Prasiola Japonica Research Center, Samcheok 25932, Republic of Korea)