Distribution of transparent exopolymer particles and their response to phytoplankton community structure changes in the Amundsen Sea, Antarctica

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Distribution of transparent exopolymer particles and their response to phytoplankton community structure changes in the Amundsen Sea, Antarctica

【Author】

XUE Siyou;HU Ji;FENG Yubin;LI Dong;ZHANG Haifeng;ZHAO Jun;HAN Zhengbing;YU Peisong;PAN Jianming;Key Laboratory of Marine Ecosystem Dynamics,Second Institute of Oceanography,Ministry of Natural Resources(MNR);

【Institution】

Key Laboratory of Marine Ecosystem Dynamics,Second Institute of Oceanography,Ministry of Natural Resources(MNR);

【Abstract】

To understand the response of transparent exopolymer particles(TEP) to the changes in phytoplankton communities caused by melting sea ice, we collected samples from the polynya and open ocean affected by the Antarctic circumpolar current in the Amundsen Sea. TEP, pigments, and other environmental factors were analyzed. The results showed that high TEP content was mainly found in the polynya, and was higher in the surface layer than in the deep layer. The main factor that affected TEP distribution was the phytoplankton community. In the polynya area, the phytoplankton were dominated by low-iron Haptophyta. In the Antarctic circumpolar current region affected by ice-melting water, the dominant species was diatom type II. Our results revealed that low-iron Haptophyta may be the main contributors to TEP content.

【Keywords】

transparent exopolymer particles;;Amundsen Sea;;impact of sea ice;;phytoplankton

Advances in Polar Science
2022 (01)

References

To explore the background and basis of the node document

Total: 31 articles

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[4] ThomasKi?rboe;J?rgen L.S.Hansen, Phytoplankton aggregate formation: observations of patterns and mechanisms of cell sticking and the significance of exopolymeric material, Journal of Plankton Research,

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