Diurnal vertical migration in the Southern Ocean: Importance to carbon sequestration and impacts from future oceanic warming

南大洋的昼夜垂直迁移：对碳封存的重要性以及未来海洋变暖的影响

• 批准号: 2748833
• 金额: --
• 依托单位: University of Bristol
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2748833
• 关键词: Diurnal; vertical; migration; Southern; Ocean

Project Background: The daily migration of mesopelagic species from deeper waters they occupy during the day, to the surface waters during the night, is the most important mass movement event that takes place on Earth. The migration transports a vast biomass of carbon from the surface waters to the ocean depths and is a key component of marine biological carbon pump (the migration is responsible for an estimated ~32% of total oceanic carbon sequestration). Despite this importance, there is considerable uncertainty regarding the species involved in the daily migration, the factors that determine the extent of migration, and the vulnerability of this pathway of carbon sequestration climate warming. This project aims to resolve the extent of carbon transport by mesopelagic species of the Southern Ocean and how this critical process will be affected by future climatic warming.

项目背景：中上层生物每天从白天生活的深水区迁徙到夜间的表层水域，这是地球上最重要的群体运动事件。这种迁移将大量的碳从地表水输送到海洋深处，是海洋生物碳泵的关键组成部分（这种迁移估计占海洋碳固存总量的32%）。尽管具有这种重要性，但关于参与每日迁徙的物种、决定迁徙程度的因素以及这一碳固存途径的脆弱性，仍存在相当大的不确定性。该项目旨在解决南大洋中远洋物种的碳运输程度以及这一关键过程将如何受到未来气候变暖的影响。