The ecosystem modelling for enhancement of primary productivity in Kamak Bay

가모만에서의 기초생산력 향상방안에 관한 생태계모델링

  • 이대인 (부경대학교 환경공학과) ;
  • 조은일 (제주대학교 환경공학과) ;
  • 박청길 (부경대학교 환경공학과)
  • Published : 1999.10.01


From the environmental aspects, primary productivity of phytoplankton plays the most improtant role in enhancement of marine culture oyster production. This study may be divided into two branches; one is estimation of maximum oyster meat production per unit facility(Carrying Capacity) under the present enviromental conditions in Kamak Bay, the other is improvement of carrying from increase of primary productivity by changing the environmental conditions that cause not ot form an unfavorable environment such as the formation of oxygen deficient water mass using the eco-hydrodynamic model. By simulation of three-dimensional hydrdynamic model and ecosystem model, the comparison between observed and computed data showed good agreement. The results of sensitivity analysis showed that phytoplankton maximum growth rate was the most important parameter for phytoplankton and dissolved oxygen. The estimation of mean primary productivity of Wonpo, Kamak, Pyongsa, and Kunnae culture grounds in Kamak Bay during culturing period were 3.73gC/$m^2$/d, 2.12gC/$m^2$/d, 1.98gC/$m^2$/d, and 1.26gC/$m^2$/d, respectively. Under condition not ot form the oxygen deficient water mass, four times increasing of pollutants loading as much as the present loading from river increased mean primary productivity of whole culture grounds to 4.02gC/$m^2$/d. Sediment N, P fluxes that allowed for 35% increasing from the present conditions increased mean primary productivity of whole culture grounds to 3.65gC/$m^2$/d. Finally, ten times increasing of boundary loadings from the present conditions increased mean primary productivity of whole culture grounds to 3.95gC/$m^2$/d. The maximum oyster meat production per year and that of unit facility in actual oyster culture grounds under the present conditions were 6,929ton and 0.93ton, respectively. This 0.93ton/unit facility is considered to be the carrying capacity in study area, and if the primary productivity is increased by changing the environmental conditions, oyster production can be increased.


Primary productivity;Carrying capacity;Eco-hydrodynamic model;Oxygen deficient water mass;Oyster production


  1. 沿岸海洋硏究ノ―ト v.26 no.2 シンポジウム「貧酸素水塊」のまとめ 柳哲雄
  2. 韓國水産學會誌 v.13 no.4 거제·한산만 양식굴Crassostrea virginica의 에너지 전환효율 김용술
  3. 沿岸 養殖漁場 環境容量 算定에 關한 硏究 國立水産振興院
  4. 韓國水産學會誌 v.24 no.1 굴 養殖場 水域의 基礎生産 硏究 李秉暾;姜亨求;姜龍柱
  5. Aquaculture v.31 The pacific oyster Crassostrea gigas, Part I, Feeding behaviour of larvae and adults Gerdes, D.
  6. The estimation of carrying capacity for marine culture grounds using an eco-hydrodynamic model Cho, E.I.
  7. 日本水産增殖 v.16 廣島灣のかき養殖場水域における基礎生産について 木村知博;橋本俊將
  8. 駕莫灣 環境汚染 實態 및 保全對策 調査報告書 麗水水産大學 水産科學硏究所
  9. 鎭海灣의 貧酸素水傀 形成에 관한 시뮬레이션 崔禹政
  10. IV. 貧酸素水塊形成についてモデリング, 漁場環境容量策定事業 日本水産資源保護協會
  11. 生態系모델을 이용한 黃海의 環境容量算定 金光壽
  12. 鎭海灣 海域의 夏季 富營養化 모델링 金鐘九
  13. Fisheries oceanographical studies on the production of the farming oyster in Kamak Bay Lee, G.H.