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

作     者：XUE Siyou HU Ji FENG Yubin LI Dong ZHANG Haifeng ZHAO Jun HAN Zhengbing YU Peisong PAN Jianming XUE Siyou;HU Ji;FENG Yubin;LI Dong;ZHANG Haifeng;ZHAO Jun;HAN Zhengbing;YU Peisong;PAN Jianming

作者机构：Key Laboratory of Marine Ecosystem DynamicsSecond Institute of OceanographyMinistry of Natural Resources(MNR)Hangzhou 310000China 

出 版 物：《Advances in Polar Science》 (极地科学进展（英文版）)

年 卷 期：2022年第33卷第1期

页      面：44-54页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 0713[理学-生态学] 

基　　金：financially supported by National Polar Special Program “Impact and Response of Antarctic Seas to Climate Change” (Grant nos. IRASCC 02-02-01  02-02-03  02-02-04  and 02-02-05)。 

主　　题：transparent exopolymer particles Amundsen Sea impact of sea ice phytoplankton 

摘      要：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.