The Korean Journal of Malacology (한국패류학회지)

The Malacological Society of Korea (한국패류학회)
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Sanitary characteristics of Seawater and Oyster (Crassostrea gigas) in Goseong Bay, Korea

경남 고성만 굴양식장의 위생학적 특성

  • Lee, Sang-Jun (Marine Environment Research Division, National Institute of Fisheries Science) ;
  • Jeong, Woo-Geon (Department of Marine biology and Aquaculture, Gyeongsang National University) ;
  • Koo, Jun-Ho (Marine Environment Research Division, National Institute of Fisheries Science) ;
  • Kwon, Jung No (Marine Environment Research Division, National Institute of Fisheries Science)
  • 이상준 (국립수산과학원 어장환경과) ;
  • 정우건 (경상대학교 해양생명과학과) ;
  • 구준호 (국립수산과학원 어장환경과) ;
  • 권정노 (국립수산과학원 어장환경과)
  • Received : 2016.09.10
  • Accepted : 2016.09.30
  • Published : 2016.09.30
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Abstract

For the hygienic production of oyster at Goseong bay, this study investigated the marine bacteriological condition of the area from 2008 to April 2009. Average seawater temperature and salinity ranged $2.8-19.3.0^{\circ}C$ and 32.61-34.91 psu, respectively. The coliform group and fecal coliform of seawater ranged < 1.8-4,900 MPN/100 mL and < 1.8-700 MPN/100 mL, respectively. The coliform group of oyster (Crassostrea gigas) ranged < 1.8-13,000 MPN/100 g. Fecal coliform of oyster ranged and < 1.8-310 MPN/100 g. Only one of 140 samples was exceeded in the U.S NSSP standard (> 230 MPN/100 g) of fecal coliform. Fecal coliform in seawater was on the level of clean sea, below the U.S. NSSP standards, and the contents of fecal coliform and heavy metals in cultured oyster were also below the U.S. NSSP, heavy metal standards, showing that the sea area is bacteriologically safe.

고성만의 지속적이고 안정적인 굴을 생산하기 위한 방안을 모색하고자 2008년 7월부터 2009년 4월까지 위생학적인 조사를 실시하여, 현재 굴양식장의 환경 수준을 평가했다. 해수의 위생세균은 고성읍에 가까운 만의 북측에서 상대적으로 높게 출현하였으나, 미국 NSSP 기준치를 충족하는 청정한 해역 수준에 있었다. 양식 굴에서도 위생세균과 중금속 함량도 각각 미국 NSSP 및 식품공전에서 제시하는 기준치 이내로 나타나 위생학적으로 안전한 위치에 있는 것으로 나타났다. 이상의 결과로 볼 때, 경남 고성만의 굴양식장 해역은 여름철 큰 강우 시기를 제외하고는 해수와 양식굴의 분변계대장균군의 기준치를 충족하였고, 고성만 주변 유역의 오염부하가 늘어날 큰 위협요인은 없는 것으로 판단되지만, 해역의 안전성확보를 위해서는 지속적인 모니터링이 필요할 것으로 생각된다.

Keywords

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