| Phosphate limitation of phytoplankton growth in the Changjiang Estuary |
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| 作者姓名： | Hu Minghui Yang Yiping Xu Chunling P. J. Harrison |
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| 作者单位： | Oceanography Department of Xiamen University, Xiamen, China;Oceanography Department of Xiamen University, Xiamen, China;Sub-bureau of East China Sea, State Oceanic Administration, Shanghai, China;Oceanography Department, U. B. C., Canada |
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| 基金项目： | This project is financed by the National Nature Science Foundation of China |
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| 摘 要： | Laboratory experiments of bioassay with Pltaeodaetytum tricornutum, Chatoceros didymus, Chaetoreros calcitraus and Heterogtoea sp. sampled from the Changjiang Estuary in spring and summer, 1986, indicated that both N and P limit phytoplankton growth in the medium with N : P ranged between 8-30, and N limits phytoplankton production in the medium with N: P<8, while P is the limitary nutrient in the N : P>30. Generally, N : P in the Changjiang Estuary waters is 2 times higher than Redfield ratio. The bioassay experiments with high N : P water samples collected from Changjiang Estuary show that phytoplankton production is limited by P. Phytopiankton appears to give priority to the uptake of P at all periods of time. And the optimum N:P for phytoplankton growth is determined to be 18.
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| 收稿时间： | 1989/7/10 0:00:00 |
| 修稿时间： | 1989/11/10 0:00:00 |
Phosphate limitation of phytoplankton growth in the Changjiang Estuary |
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| Hu Minghui,Yang Yiping,Xu Chunling,P. J. Harrison.Phosphate limitation of phytoplankton growth in the Changjiang Estuary[J].Acta Oceanologica Sinica,1990,9(3):405-411. |
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| Authors: | Hu Minghui Yang Yiping Xu Chunling and P J Harrison |
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| Institution: | 1.Oceanography Department of Xiamen University, Xiamen, China2.Sub-bureau of East China Sea, State Oceanic Administration, Shanghai, China3.Oceanography Department, U. B. C., Canada |
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| Abstract: | Laboratory experiments of bioassay with Pltaeodaetytum tricornutum, Chatoceros didymus, Chaetoreros calcitraus and Heterogtoea sp.sampled from the Changjiang Estuary in spring and summer, 1986, indicated that both N and P limit phytoplankton growth in the medium with N : P ranged between 8-30, and N limits phytoplankton production in the medium with N:P<8, while P is the limitary nutrient in the N:P>30.Generally, N:P in the Changjiang Estuary waters is 2 times higher than Redfield ratio.The bioassay experiments with high N:P water samples collected from Changjiang Estuary show that phytoplankton production is limited by P.Phytopiankton appears to give priority to the uptake of P at all periods of time.And the optimum N:P for phytoplankton growth is determined to be 18. |
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