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Effects of increased pCO2 on phytoplankton community compositions in the NW subarctic Pacific and Bering Sea in summer

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/44185

Title: Effects of increased pCO2 on phytoplankton community compositions in the NW subarctic Pacific and Bering Sea in summer
Authors: Endo, Hisashi1 Browse this author
Yoshimura, Takeshi Browse this author
Sugie, Koji Browse this author
Suzuki, Koji Browse this author
Authors(alt): 遠藤, 寿1
Issue Date: 24-Oct-2010
Citation: 第2回北海道大学サステナビリティ学生研究ポスターコンテスト = The Second Hokkaido University Sustainability Research Poster Contest. 平成22年10月24日(日) - 11月5日(金). 北海道大学学術交流会館, 札幌市.
Abstract: Rising atmospheric CO, concentration have led to greater CO, uptake by the ocean with a decrease in pH of seawater (i.e. ocean acidification). To elucidate the effects of ocean acidification On natural phytoplankton assemblages, CO, manipulated incubation experiments were conducted in the NW subarctic Pacific and Bering Sea in summer of2008 and 2009, respectively. Phytoplankton pigments samples were analyzed by HPLC with the algorithm CHEMT AX. As a result, an increase in pCO, in seawater depressed a specific phytoplankton group at least and the effect differed among the sea areas. Since export flux of organic carbon from the surface to ocean interior (i.e. biological pump) largely depends on the relative abundance of each phytoplankton group. Ocean acidification has a significant impact on the CO, absorption ability in situ. I plan to do more detailed field and laboratory studies to examine physiological conditions in relation to CO, fixation of phytoplankton.
Description: 「北海道大学総長賞 (最優秀賞)」受賞
Conference Name: Hokkaido University Sustainability Research Poster Contest
北海道大学サステナビリティ学生研究ポスターコンテスト
Conference Sequence: 2
Conference Place: Sapporo
札幌
Type: conference presentation
URI: http://hdl.handle.net/2115/44185
Appears in Collections:北海道大学サステナビリティ・ウィーク2010 (Sustainability Weeks 2010) > 第2回北海道大学サステナビリティ学生研究ポスターコンテスト (The Second Hokkaido University Sustainability Research Poster Contest)

Submitter: 遠藤 寿

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