Ecological study on picophytoplankton in the Taiwan Strait——Ⅰ. Spatial and temporal distribution and its controlling mechanism

HUANG Bang-qm; HONG Hua-sheng; LIN Xue-ju; CHEN Ji-xin

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HUANG Bang-qm, HONG Hua-sheng, LIN Xue-ju, CHEN Ji-xin. Ecological study on picophytoplankton in the Taiwan Strait——Ⅰ. Spatial and temporal distribution and its controlling mechanism[J]. Haiyang Xuebao, 2003, 25(4): 72-82.

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Ecological study on picophytoplankton in the Taiwan Strait——Ⅰ. Spatial and temporal distribution and its controlling mechanism

Marine Environmental Science Laboratory of Ministry of Education, Xiamen University, Xiamen 361005, China;Environmental Science Research Center, Xiamen University, Xiamen 361005, China

Received Date: 2001-08-10
Rev Recd Date: 2001-12-24

Abstract

Abstract

The studies on the temporal,spatial,diel,seasonal variations and controlling mechanism were carried out during three cruises in the Taiwan Strait (August 1997,February-March 1998 and August 1998).The results show that horizontal distribution of picophytoplankton abundance was heterogeneous,specific dense areas were found for each group of picophytoplankton.There were six patterns of vertical profiles of picophytoplankton in the Taiwan Strait,of which,standard monopeak and weak monopeak dominated,the diversity of vertical profile may be due to complex topography and strong hydrodynamics (such as thermocline) in the study area.Regression analysis between picophytoplankton abundance and environmental factors shows that temperature was a key factor in horizontal distributions,while the irradiance,thermocline and halocline were important factors affecting the vertical profile in the Taiwan Strait.There were different "niches" for the different picophytoplankton groups in the study areas,this may be due to the differences among the groups in the sensitivity to tolerate temperature and ability to use light.
- picophytoplankton,
- spatial and temporal distribution,
- Taiwan Strait,
- environmental factors

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References(37)

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