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제주도 연안 해역의 오염지표세균의 분포

Distribution of Indicator Bacteria in Seawater off the Coast of Jeju Island

  • 노형진 (부경대학교 수산생명의학과) ;
  • 임윤진 (부경대학교 수산생명의학과) ;
  • 김아란 (부경대학교 수산생명의학과) ;
  • 김남은 (부경대학교 수산생명의학과) ;
  • 김영재 ((주)한국수산방역기술) ;
  • 박노백 (국립수산과학원 양식관리과) ;
  • 황지연 (국립수산과학원 방역과) ;
  • 권문경 (국립수산과학원 방역과) ;
  • 김도형 (부경대학교 수산생명의학과)
  • Roh, Heyong Jin (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Lim, Yun-Jin (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Kim, Ahran (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Kim, Nam Eun (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Kim, Youngjae (Korea Aquatic Biosecurity Technology (KABT)) ;
  • Park, Noh Back (Aquaulture Management Division, National Institute of Fisheries Science) ;
  • Hwang, Jee-Youn (Aquatic Life Disease Control Division, National Institute of Fisheries Science) ;
  • Kwon, Mun-Gyeong (Aquatic Life Disease Control Division, National Institute of Fisheries Science) ;
  • Kim, Do-Hyung (Department of Aquatic Life Medicine, Pukyong National University)
  • 투고 : 2018.05.18
  • 심사 : 2018.07.10
  • 발행 : 2018.08.31

초록

We examined correlations of the density of fish farms with the distributions of indicator bacteria (Escherichia coli, fecal streptococci) and a bacterial fish pathogen (Streptococcus parauberis) off the coastline of Jeju Island. Seawater samples were collected at four coastal sites on the Island [Aewol (control), Gujwa, Pyoseon and Daejeong] in June, August and October 2016. The indicator bacteria were generally more frequently isolated from samples taken in August when water temperatures and human activities on nearby beaches were highest. Although fish farms were least common at Daejeong, the numbers of isolated fecal indicator bacteria were highest in the seawater and effluent water collected from this site. Hence, fish farms were not likely major contributors of indicator bacteria at Daejeong. We found discrepancies between the isolated bacterial counts and the predicted bacterial copy numbers deduced from our qPCR results, indicating that this pathogen may exist in a viable but non-culturable (VBNC) state in seawater. Thus, livestock wastewater and chemical fertilizer loading off Jeju Island may negatively impact seawater quality more than the effluent released from fish farms does.

키워드

참고문헌

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