Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Community Analysis and Pathogen Monitoring in Wild Cyprinid Fish and Crustaceans in the Geum River Estuary

금강 하구 자연수계 생물체의 군집 분석 및 질병 원인체 검사

  • Kim, So Yeon (Department of Aquatic Life Medical Sciences, Sunmoon University) ;
  • Hur, Jun Wook (Bio-Monitoring Center) ;
  • Cha, Seung Joo (Southeast Sea Fisheries Research Institute) ;
  • Park, Myoung Ae (Aquatic Disease Control Division, National Institute of Fisheries Sciences) ;
  • Choi, Hye-Sung (Aquaculture Industry Division, South Sea Fisheries Research Institute) ;
  • Kwon, Joon Yeong (Department of Aquatic Life Medical Sciences, Sunmoon University) ;
  • Kwon, Se Ryun (Department of Aquatic Life Medical Sciences, Sunmoon University)
  • 김소연 (선문대학교 수산생명의학과) ;
  • 허준욱 (생물모니터링센터) ;
  • 차승주 (국립수산과학원 남동해수산연구소) ;
  • 박명애 (국립수산과학원 수산방역과) ;
  • 최혜승 (국립수산과학원 남해수산연구소) ;
  • 권준영 (선문대학교 수산생명의학과) ;
  • 권세련 (선문대학교 수산생명의학과)
  • Received : 2018.01.12
  • Accepted : 2018.05.15
  • Published : 2018.06.30
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Abstract

Freshwater farms are primarily located adjacent to rivers and lakes, facilitating the introduction and spread of pathogens into natural systems. Therefore, it is necessary to continuously monitor natural aquatic organisms, the breeding environment, and infection rates by pathogenic organisms. Fish and crustaceans were sampled 4 times in the Geum River estuary in 2016. The samples were analyzed for the presence of pathogens for reportable communicable diseases, including KHVD (koi herpesvirus disease), SVC (spring viraemia of carp), EUS (epizootic ulcerative syndrome) and WSD (white spot disease); parasite abundance was also examined. The dominant fish species were deep body bitterling Acanthorhodes macropterus (21.4%), followed by skygager Erythroculter erythropterus (12.7%). For crustaceans, Palaemon paucidens and Chinese mitten crab Eriocheir sinensis were dominant. Sixty fish and 36 crustacean species were examined for reportable communicable diseases. When using a specific primer set for each disease, PCR analysis did not detect any reportable communicable diseases in the samples. Some instances of Dactylogyrus, copepods, nematodes and metacercaria were detected. However, the PCR results indicated that the metacercaria were not Clonorchis sinensis.

Keywords

References

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