| Influence of Seawater Temperature on Phytoplankton Growth in Jiaozhou Bay, China |
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| 作者姓名： | 杨东方 高振会 陈豫 王培刚 孙培艳 |
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| 作者单位： | [1]CollegeofFisheryScience,ShanghaiFisheriesUniversity,Shanghai200090,China [2]BeihaiMonitoringCenter,StateOceanicAdministration,Qingdao266033,China [3]CollegeofComputerScience,ShanghaiFisheriesUniversity,Shanghai200090,China |
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| 基金项目： | NSFC (No .40 0 3 60 10 ) ,andtheDirector’sFoundationoftheBeihaiMonitoringCenter ,theStateOceanicAdministration |
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| 摘 要： | The phytoplankton reproduction capacity (PRC), as a new concept regarding chlorophyll-a and primary production (PP) is described. PRC is different from PP, carbon assimilation number (CAN) or photosynthetic rate ( P^B ) . PRC quantifies phytoplankton growth with a special consideration of the effect of seawater temperature. Observation data in Jiaozhou Bay, Qingdao, China, collected from May 1991 to February 1994 were used to analyze the horizontal distribution and seasonal variation of the PRC in Jiaozhou Bay in order to determine the characteristics, dynamic cycles and trends of phytoplankton growth in Jiaozhou Bay; and to develop a corresponding dynamic model of seawater temperature vs. PRC. Simulation curves showed that seawater temperature has a dual function of limiting and enhancing PRC. PRC‘s periodicity and fluctuation are similar to those of the seawater temperature. Nutrient silicon in Jiaozhou Bay satisfies phytoplankton growth from June 7 to November 3. When nutrients N, P and Si satisfy the phytoplankton growth and solar irradiation is sufficient, the PRC would reflect the influence of seawater temperature on phytoplankton growth. Moreover, the result quantitatively explains the scenario of one-peak or two-peak phytoplankton reproduction in Jiaozhou Bay, and also quantitatively elucidates the internal mechanism of the one- or two-peak phytoplankton reproduction in the global marine areas.
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| 关 键 词： | 浮游植物 胶洲湾 叶绿素 牧草 海水温度 植物生长 |
| 收稿时间： | 21 May 2003 |
| 修稿时间： | 13 November 2003 |
Influence of seawater temperature on phytoplankton growth in Jiaozhou Bay,China |
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| Yang Dongfang,Gao Zhenhui,Chen Yu,Wang Peigang,Sun Peiyan.Influence of Seawater Temperature on Phytoplankton Growth in Jiaozhou Bay, China[J].Chinese Journal of Oceanology and Limnology,2004,22(2):166-175. |
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| Authors: | Yang Dongfang Gao Zhenhui Chen Yu Wang Peigang Sun Peiyan |
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| Institution: | (1) College of Fishery Science, Shanghai Fisheries University, 200090 Shanghai, China;(2) Beihai Monitoring Center, State Oceanic Administration, 266033 Qingdao, China;(3) Institute of Oceanology, Chinese Academy of Sciences, 266071 Qingdao, China;(4) College of Computer Science, Shanghai Fisheries University, 20090 Shanghai, China |
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| Abstract: | The phytoplankton reproduction capacity (PRC), as a new concept regarding chlorophyll-a and primary production (PP) is described. PRC is different from PP, carbon assimilation number (CAN) or photosynthetic rate (P B). PRC quantifies phytoplankton growth with a special consideration of the effect of seawater temperature. Observation data in Jiaozhou Bay, Qingdao, China, collected from May 1991 to February 1994 were used to analyze the horizontal distribution and seasonal variation of the PRC in Jiaozhou Bay in order to determine the characteristics, dynamic cycles and trends of phytoplankton growth in Jiaozhou Bay; and to develop a corresponding dynamic model of seawater temperature vs. PRC. Simulation curves showed that seawater temperature has a dual function of limiting and enhancing PRC. PRC's periodicity and fluctuation are similar to those of the seawater temperature. Nutrient silicon in Jiaozhou Bay satisfies phytoplankton growth from June 7 to November 3. When nutrients N, P and Si satisfy the phytoplankton growth and solar irradiation is sufficient, the PRC would reflect the influence of seawater temperature on phytoplankton growth. Moreover, the result quantitatively explains the scenario of one-peak or two-peak phytoplankton reproduction in Jiaozhou Bay, and also quantitatively elucidates the internal mechanism of the one- or two-peak phytoplankton reproduction in the global marine areas. |
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| Keywords: | phytoplankton reproduction seawater temperature phytoplankton reproduction capacity Jiaozhou Bay |
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