한국산 민무늬둑중개 Cottus pollux (Pisces: Cottidae)의 분포 현황 (Current Distribution of Cottus pollux (Pisces: Cottidae) in Korea)

서지정보

· 발행기관 : 한국수생태학회
· 수록지 정보 : 생태와 환경 / 57권 / 2호 / 92 ~ 101페이지
· 저자명 : 윤봉한, 김용휘, 이호성, 서은선, 이수형, 방인철

초록

Current  distribution  of  Korean  Cottus pollux  was  investigated  by  conducting  field  surveys  and environmental DNA analysis in September to November 2022 and March to May 2023. As a result of the field survey,  the  presence  of  C. pollux  was  confirmed  in  the  uppermost  stream  of  Hyeongsangang  River,  as  well  as in  Deokdongcheon,  Jeolgolcheon,  and  Hoamcheon  Streams.  The  main  habitat  of  C. pollux  was  the  riffle  area in  the  upper  reaches  of  streams  with  clean  water  and  boulder-cobble  bottoms. As  a  result  of  environmental DNA  analysis,  the  samples  determined  to  be  positive  included  all  streams  in  which  the  presence  of  C. pollux was  confirmed  in  the  field  survey.  In  addition,  Namcheon  and  Singwangcheon  Streams  were  determined  to be  positive,  indicating  potential  as  its  habitats.  Since  C. pollux  has  a  narrow  distribution  area  and  a  small population  size,  continuous  monitoring  and  conservation  measures  are  required  to  immediately  respond  to damage  caused  by  typhoons  and  river  works,  which  are  the  main  causes  of  habitat  disturbance,  in  order  to maintain a stable population.

영어초록

Current  distribution  of  Korean  Cottus pollux  was  investigated  by  conducting  field  surveys  and environmental DNA analysis in September to November 2022 and March to May 2023. As a result of the field survey,  the  presence  of  C. pollux  was  confirmed  in  the  uppermost  stream  of  Hyeongsangang  River,  as  well  as in  Deokdongcheon,  Jeolgolcheon,  and  Hoamcheon  Streams.  The  main  habitat  of  C. pollux  was  the  riffle  area in  the  upper  reaches  of  streams  with  clean  water  and  boulder-cobble  bottoms. As  a  result  of  environmental DNA  analysis,  the  samples  determined  to  be  positive  included  all  streams  in  which  the  presence  of  C. pollux was  confirmed  in  the  field  survey.  In  addition,  Namcheon  and  Singwangcheon  Streams  were  determined  to be  positive,  indicating  potential  as  its  habitats.  Since  C. pollux  has  a  narrow  distribution  area  and  a  small population  size,  continuous  monitoring  and  conservation  measures  are  required  to  immediately  respond  to damage  caused  by  typhoons  and  river  works,  which  are  the  main  causes  of  habitat  disturbance,  in  order  to maintain a stable population.

참고자료

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