[口头报告]Small eukaryotic phytoplankton drive primary production responses to ocean acidification in the tropical ocean

Small eukaryotic phytoplankton drive primary production responses to ocean acidification in the tropical ocean
编号:2857 稿件编号:3493 访问权限:私有 更新:2023-04-12 17:02:53 浏览:291次 口头报告

报告开始:2023年05月08日 12:00 (Asia/Shanghai)

报告时间:10min

所在会议:[6A] 6A、海洋地球科学 » [6A-4] 6A-4 海洋地球科学

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摘要
The ongoing ocean acidification is projected to affect marine phytoplankton, their community structure, and function. Despite this, how small-phytoplankton-driven primary production in the (ultra)oligotrophic ocean will respond to OA, is still poorly understood. Here we conducted 47 onboard microcosm experiments across the western North Pacific. Vary-extent but consistent decreases in primary production after OA were observed in the North Pacific Subtropical Gyre and the northern South China Sea, the negative OA effects switched to no changes in the northern transition zone. Changes in small eukaryotic phytoplankton abundance after OA appeared to drive the changes in overall primary production. Experimental evidence further indicates that the varied OA impacts on primary production are closely related to the variability of nutrient supply and temperature across our study area. Our study provides the first basin-scale evidence in supporting the widespread decline in primary production in the (sub)tropical (ultra)oligotrophic oceans, upon the rising atmospheric CO2.
关键字
Ocean acidification; Primary production; Phytoplankton; Oligotrophic ocean
报告人
戴荣波
厦门大学

稿件作者
戴荣波 厦门大学
史大林 厦门大学近海海洋环境科学国家重点实验室
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徐 鹏(13554674258;xupengwhu@whu.edu.cn)
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王伦澈(13349889828;wang@cug.edu.cn)
庄艳华(13349889826;zhuang@apm.ac.cn)
李星华(15527964369;lixinghua5540@whu.edu.cn)
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管小彬(18007973663;guanxb@whu.edu.cn)
赵 林(18071070948;linzhao@whu.edu.cn)
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