Distribution and controlling factors of alkaline phosphatase activity in western Xiamen waters

Huang Bangqin; Hong Huasheng; Xue Xiongzhi

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Huang Bangqin, Hong Huasheng, Xue Xiongzhi. Distribution and controlling factors of alkaline phosphatase activity in western Xiamen waters[J]. Haiyang Xuebao, 2000, 22(1): 62-68.

Citation:

Huang Bangqin, Hong Huasheng, Xue Xiongzhi. Distribution and controlling factors of alkaline phosphatase activity in western Xiamen waters[J]. Haiyang Xuebao, 2000, 22(1): 62-68.

Huang Bangqin, Hong Huasheng, Xue Xiongzhi. Distribution and controlling factors of alkaline phosphatase activity in western Xiamen waters[J]. Haiyang Xuebao, 2000, 22(1): 62-68.

Citation:

Huang Bangqin, Hong Huasheng, Xue Xiongzhi. Distribution and controlling factors of alkaline phosphatase activity in western Xiamen waters[J]. Haiyang Xuebao, 2000, 22(1): 62-68.

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Distribution and controlling factors of alkaline phosphatase activity in western Xiamen waters

Research Laboratory of SEDC on Marine Ecological Environment; Environmental Science Research Center, Xiamen University Xiamen, 361005

Received Date: 1996-08-28
Rev Recd Date: 1998-11-12

Abstract

Abstract

Total alkaline phosphatase activity(APA),phytoplankton APA,bacteria APA and free APA were measured by fluorometry during five cruises(August and November 1993,March,May and October 1994) in western Xiamen waters.Results showed that APA fluctuated obviously,total APA increased up to the highest in August,1993 [6.175 1 μg/(dm³·h)] and decreased down to the lowest in November,1993 [0.5677μg/(dm³·h)],the data also show that both phytoplankton and sea water ave the major carriers of alkaline phosphatase,contributing 44.7% and 40.596,respectively.Regression analysis indicates that controlling mechanism of APA is complicated,phosphorus,nitrate,dissolved oxygen,eheanieal oxygen demand,primary production and baterial production (BP) had significant effeets tm APA,in which BP is positive with APA while others negative with APA.The role of APA in phosphorus biogeothemical cyellng and possible application of APA as indicator of phosphorus concentration(such as limitation) are discussed.
- Alkaline phosphatase,
- phytoplankton,
- bacteria,
- phosphorus,
- controlling factors

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References(19)

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