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굴양식어장 밀집해역인 진해만과 거제-한산만의 퇴적물 내 유기물 분포특성

Organic Enrichment and Pollution in Surface Sediments from Jinhae and Geoje-Hansan Bays with Dense Oyster Farms

  • 최민규 (국립수산과학원 어장환경과) ;
  • 이인석 (국립수산과학원 어장환경과) ;
  • 황동운 (국립수산과학원 어장환경과) ;
  • 김형철 (국립수산과학원 어장환경과) ;
  • 윤상필 (국립수산과학원 어장환경과) ;
  • 윤세라 (국립수산과학원 어장환경과) ;
  • 김청숙 (국립수산과학원 어장환경과) ;
  • 서인수 ((주)저서생물연구센터)
  • Choi, Minkyu (Marine Environment Research Division, National Institute of Fisheries Science) ;
  • Lee, In-Seok (Marine Environment Research Division, National Institute of Fisheries Science) ;
  • Hwang, Dong-Woon (Marine Environment Research Division, National Institute of Fisheries Science) ;
  • Kim, Hyung Chul (Marine Environment Research Division, National Institute of Fisheries Science) ;
  • Yoon, Sang-Pil (Marine Environment Research Division, National Institute of Fisheries Science) ;
  • Yun, Sera (Marine Environment Research Division, National Institute of Fisheries Science) ;
  • Kim, Chung-Sook (Marine Environment Research Division, National Institute of Fisheries Science) ;
  • Seo, In-Soo (Korea Benthos Research Center)
  • 투고 : 2017.09.21
  • 심사 : 2017.10.26
  • 발행 : 2017.12.31

초록

Organic enrichment and pollution was investigated in surface sediments from Jinhae Bay and Geoje-Hansan Bay of Korea, which contain the largest oyster farms in Korean coastal areas. Geochemical indicators (chemical oxygen demand, total organic carbon, ignition loss, and acid volatile sulfide) in sediments, ammonium and nitrate in pore water, and bioluminescence inhibition test for sediment extracts were analyzed. Temporal changes of organic enrichment were also investigated using sediment core samples from Geoje-Hansan Bay. The level of organic pollution in sediments from Jinhae Bay was significantly greater than that of sediments from Geoje-Hansan Bay. Compared with other sites, Jinhae Bay was one of the most polluted coastal areas of Korea. The levels of geochemical indicators in May were comparable to, or higher than, in August. Ammonium concentrations in pore water were two orders of magnitudes greater than the nitrate concentrations, suggesting that the bays are reducing environments. The concentrations of total organic carbon in core sediment samples from shellfish-farming areas increased significantly from 2000 to the present year, and it seems to be associated with increases in anthropogenic activities.

키워드

참고문헌

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