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적조 다발 지역인 진동만의 해양환경 특성 KCI 등재

The Oceanic Environmental Property in the Jindong Bay of the Red-Tide Appearance Area

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한국환경과학회지 (Journal of Environmental Science International)
한국환경과학회 (The Korean Environmental Sciences Society)
초록

We studied the appearance and proliferation of red tide organisms from March, 1998, to February, 1999, in the Jindong Bay. There were two red tide events during investigation, and we found that the dominant species Ceratium furca in May and Gymnodinium sanguineum in September, 1998.
At surface, temperature and salinity showed 18.3∼19.7℃ and 30.6∼30.9 psu in May and 25.6∼27.0℃, 28.0∼28.5 psu in September, respectively. When the red tide occurred, the water mass was stable.
Dissolved inorganic nitrogen(DIN) and dissolved inorganic phosphate(DIP) in Jindong Bay showed seasonal variability. In May, the nitrogen was a limited nutrient in which the ratio of DIN versus DIP was less than 16 (Redfield ratio), while in September phosphate. During June to September, 1998, phosphate acted as a limited nutrient due to the increased river run-off from land.
In May, chlorophyll-a, dissolved oxygen(DO) and chemical oxygen demand(COD) showed higher than 20㎍/ℓ, l0㎎/ℓ and 5.0㎎/ℓ, respectively. In September, they showed in turns 100㎍/ℓ, 10㎎/ℓ and 10㎎/ℓ, respectively.

저자
  • 김동선(부경대학교 해양산업개발연구소) | Dong Sun Kim
  • 조규대(부경대학교 해양학과) | Kyu Dae Cho
  • 박청길(부경대학교 환경공학과) | Chung Kil Park