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학술저널
저자정보
저널정보
한국수산과학회 한국수산과학회지 한국수산과학회지 제36권 제2호
발행연도
수록면
178 - 186 (9page)

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초록· 키워드

Seasonal variation of phytoplankton was investigated with surface mixed layer ecosystem model in the East Sea. The model consisted of four compartments (phytoplankton, zooplankton, nutrient, detritus) forced by mixed layer depths, photosynthetically available radiation and nutrient concentrations. From model results we estimated entrainment rate 2.5~4.0 m·day^-1 to reproduce the two annual blooms, and reproduced seasonal variation of phytoplankton at southern and northern regions by the difference of surface winter mixed layer depth (MLD) using the entrainment rate value 3.0m·day^-1. The spring blooms in the southern and northern regions closely related to deepening of a winter surface MLD during the onset of stratification and water temperature increase faster in spring in the southern region than the northern region. Decrease of phytoplankton was mainly affected by zooplankton grazing in the southern region and by nutrient exhaustion in the northern region. The fall bloom in the two regions was caused by the nutrient availability and entrainment on the phytoplankton.
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UCI(KEPA) : I410-ECN-151-24-02-090204974