Picophytoplankton abundance and community structure in the Philippine Sea, western Pacific

Sanjun Zhao; Jianwei Wei; Haidong Yue; Tian Xiao

doi:10.1007/s00343-010-9274-0

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Picophytoplankton abundance and community structure in the Philippine Sea, western Pacific

Updated：2023-05-16

- Picophytoplankton abundance and community structure in the Philippine Sea, western Pacific
- Journal of Oceanology and Limnology Vol. 28, Issue 1, Pages: 88-95(2010)
- Affiliations：
  
  1. Institute of Oceanology Chinese Academy of Sciences
  2. Graduate School Chinese Academy of Sciences
  3. First Institute of Oceanology State Oceanic Administration
- Author bio：
- Funds：
- DOI：10.1007/s00343-010-9274-0
  CLC：
- Online First：27 January 2010，
  
  Published：2010
- Accepted：
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Zhao, S., Wei, J., Yue, H. et al. Picophytoplankton abundance and community structure in the Philippine Sea, western Pacific., Chin. J. Ocean. Limnol. 28, 88–95 (2010). https://doi.org/10.1007/s00343-010-9274-0
DOI：

Zhao, S., Wei, J., Yue, H. et al. Picophytoplankton abundance and community structure in the Philippine Sea, western Pacific., Chin. J. Ocean. Limnol. 28, 88–95 (2010). https://doi.org/10.1007/s00343-010-9274-0 DOI：

摘要

Abstract

Flow cytometric determinations of the abundance distribution and community structure of picophytoplankton (i.e.

Prochlorococcus spp.

orange fluorescence Synechococcus spp. and picoeukaryotes) were used for samples taken from the Philippine Sea in the western tropical Pacific Ocean from September to October of 2004. A fluorescence probe was employed to detect Chlorophyll a (Chl a). Abundances of Prochlorococcus spp.

orange fluorescence Synechococcus spp. and picoeukaryotes ranged from 0.1 to 58×103 cells ml−1

0.38 to 17×102 cells ml−1 and 0.42 to 26×102 cells ml−1

respectively. Synechococcus spp. and picoeukaryotes co-occurred in relatively shallow water with the maximum abundance observed at 50 to 70 m depth

while Prochlorococcus spp. only occurred in the 70 to 200 m layer. Prochlorococcus spp. was the dominant picophytoplankton population in terms of abundance and biomass. The cell size and carbon biomass content were estimated for the three picophytoplankton groups. In addition

among the three groups of picophytoplankton

the relative contribution of red fluorescence to the total red fluorescence varied with depth. The fluorescence and light scatter properties of individual cells indicated that in the upper 100 m layer

picoeukaryotes were a major contributor to total red fluorescence

while at the depth below 100 m

Prochlorococcus spp. and Synechococcus spp. made an important contribution to the total red fluorescence.

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