Impacts of Global Change on Ocean Dissolved Organic Carbon (DOC) Cycling

• Published in: Frontiers in Marine Science
• Main Authors: Lonborg, Ch., Carreira, Cátia, Jickells, T., Álvarez-Salgado, Xosé Antón
• Other Authors: Ministerio de Economía y Competitividad (España)
• Format: Article in Journal/Newspaper
• Language: English
• Published: Frontiers Media 2020
• Subjects: Dissolved organic carbon; Ocean warming and stratification; Acidification; Deoxygenation; Glaciers and sea ice; Rivers; Ocean currents; Atmospheric deposition; Sea ice
• Online Access: http://hdl.handle.net/10261/233548; https://doi.org/10.3389/fmars.2020.00466; https://doi.org/10.13039/501100003329

24 pages, 1 table, 5 figures.-- This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) The marine dissolved organic carbon (DOC) pool is an important player in the functioning of marine ecosystems. DOC is at the interface between the chemical and the biological worlds, it fuels marine food webs, and is a major component of the Earth’s carbon system. Here, we review the research showing impacts of global change stressors on the DOC cycling, specifically: ocean warming and stratification, acidification, deoxygenation, glacial and sea ice melting, changed inflow from rivers, changing ocean circulation and upwelling, and wet/dry deposition. A unified outcome of the future impacts of these stressors on the global ocean DOC production and degradation is not possible, due to regional differences and differences in stressors impacts, but general patterns for each stressor are presented Thanks are due to FCT/MCTES for the financial support to CESAM (UIDP/50017/2020 + UIDB/50017/2020), through national funds. CC was supported by Fundação para a Ciência e a Tecnologia (FCT; SFRH/BPD/117746/2016). XÁ-S was funded by the Spanish MICINN (CTM2015-69392-C3-2-R), co-funded by FEDER Peer reviewed