Evolving paradigms in biological carbon cycling in the ocean

Zhang, Chuanlun, Dang, Hongyue, Azam, Farooq, Benner, Ronald, Legendre, Louis, Passow, Uta, Polimene, Luca, Robinson, Carol, Suttle, Curtis and Jiao, Nianzhi (2018) Evolving paradigms in biological carbon cycling in the ocean. National Science Review, 5 (4). 481–499. ISSN 2095-5138

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    Abstract

    Carbon is a keystone element in global biogeochemical cycles. It plays a fundamental role in biotic and abiotic processes in the ocean, which intertwine to mediate the chemistry and redox status of carbon in the ocean and the atmosphere. The interactions between abiotic and biogenic carbon (e.g., CO2, CaCO3, organic matter) in the ocean are complex, and there is a half-century-old enigma about the existence of a huge reservoir of recalcitrant dissolved organic carbon (RDOC) that equates to the magnitude of the pool of atmospheric CO2. The concepts of the biological carbon pump (BCP) and the microbial loop (ML) shaped our understanding of the marine carbon cycle. The more recent concept of the microbial carbon pump (MCP), which is closely connected to those of the BCP and the ML, explicitly considers the significance of the ocean's RDOC reservoir and provides a mechanistic framework for the exploration of its formation and persistence. Understanding of the MCP has benefited from advanced “omics”, and novel research in biological oceanography and microbial biogeochemistry. The need to predict the ocean’s response to climate change makes an integrative understanding of the MCP, BCP and ML a high priority. In this review, we summarize and discuss progress since the proposal of the MCP in 2010 and formulate research questions for the future.

    Item Type: Article
    Faculty \ School: Faculty of Science > School of Environmental Sciences
    University of East Anglia > Faculty of Science > Research Groups > Environmental Biology
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    University of East Anglia > Faculty of Science > Research Centres > Centre for Ecology, Evolution and Conservation
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    Depositing User: LivePure Connector
    Date Deposited: 09 Aug 2018 17:30
    Last Modified: 21 Aug 2018 17:31
    URI: https://ueaeprints.uea.ac.uk/id/eprint/68011
    DOI: 10.1093/nsr/nwy074

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