Phytoplankton abundance and community structure in the Antarctic polar frontal region during austral summer of 2009

Patil Shramik; Mohan Rahul; Shetye Suhas; Gazi Sahina

doi:10.1007/s00343-013-1309-x

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Phytoplankton abundance and community structure in the Antarctic polar frontal region during austral summer of 2009

Updated：2023-05-16

- Phytoplankton abundance and community structure in the Antarctic polar frontal region during austral summer of 2009
- Journal of Oceanology and Limnology Vol. 31, Issue 1, Pages: 21-30(2013)
- Affiliations：
  
  National Centre for Antarctic and Ocean Research
- Author bio：
- Funds：
- DOI：10.1007/s00343-013-1309-x
  CLC：
- Online First：16 January 2013，
  
  Published：2013
- Accepted：
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Shramik, P., Rahul, M., Suhas, S. et al. Phytoplankton abundance and community structure in the Antarctic polar frontal region during austral summer of 2009., Chin. J. Ocean. Limnol. 31, 21–30 (2013). https://doi.org/10.1007/s00343-013-1309-x
DOI：

Shramik, P., Rahul, M., Suhas, S. et al. Phytoplankton abundance and community structure in the Antarctic polar frontal region during austral summer of 2009., Chin. J. Ocean. Limnol. 31, 21–30 (2013). https://doi.org/10.1007/s00343-013-1309-x DOI：

摘要

Abstract

The Antarctic polar front region in the Southern Ocean is known to be most productive. We studied the phytoplankton community structure in the Indian sector at this frontal location during late austral summer (February

2009) onboard R/V Akademic Boris Petrov. We used the phytoplankton and microheterotrophs abundance

as also the associated physico-chemical parameters to explain the low phytoplankton abundance in the study region. This study emphasizes the shift of phytoplankton

from large (>10 μm) to small (<10 μm) size. The phytoplankton abundance appears to be controlled by physical parameters and by nutrient concentrations and also by the microheterotrophs (ciliates and dinoflagellates) which exert a strong grazing pressure. This probably reduces small (<10 μm) and large (>10 μm) phytoplankton abundance during the late austral summer. This study highlights the highly productive polar front nevertheless becomes a region of low phytoplankton abundance

due to community shifts towards pico-phytoplankton (<10 μm) during late austral summer.

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references

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