Phytoplankton-nutrient interactions in the upper ocean

上层海洋浮游植物与营养物的相互作用

• 批准号: 288269-2011
• 负责人: Varela, Diana
• 金额: $ 2.04万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=507715
• 关键词: Phytoplankton; nutrient; interactions; upper; ocean

The ocean covers about 71% of the earth's surface and strongly affects global climate. Floating unicellular algae (phytoplankton) play a critical role in modifying the earth's climate by changing the carbon balance of the ocean, which have a direct impact on atmospheric carbon dioxide concentrations. These photosynthetic organisms take up nutrients (e.g. carbon, nitrogen, silicon, phosphorus) through photosynthesis and return them back to seawater after death and decomposition, thereby controlling the level of carbon dioxide in the ocean and atmosphere. Phytoplankton physiology can also affect nutrient transfer along marine food webs with consequences for the survival of fish and marine mammals.

海洋覆盖了地球表面的71%，对全球气候有着重要的影响。漂浮的单细胞藻类（浮游植物）通过改变海洋的碳平衡在改变地球气候方面发挥着关键作用，这对大气中的二氧化碳浓度有直接影响。这些光合生物通过光合作用吸收营养物质（例如碳、氮、硅、磷），并在死亡和分解后将其返回海水，从而控制海洋和大气中的二氧化碳水平。浮游植物的生理学也会影响沿着海洋食物网的营养转移，从而影响鱼类和海洋哺乳动物的生存。