Phytoplankton pigment distribution in the northwestern Alboran Sea and meteorological forcing: A remote sensing study
In: Journal of marine research, Band 65, Heft 4, S. 523-543
ISSN: 1543-9542
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In: Journal of marine research, Band 65, Heft 4, S. 523-543
ISSN: 1543-9542
Spanish Ministry of Economy and Competitiveness [CSD2008-00077, CTM2016-78853-R]; European Union, Horizon 2020 [817806, 817578]
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8 pages, 4 figures, 1 table, supplementary information https://doi.org/10.1038/s41467-020-19875-7.-- Data sets generated during and/or analyzed during the current study are available at PANGAEA (http://www.pangaea.de). The zooplankton biomass from the Malaspina cruise is available in https://doi.org/10.1594/PANGAEA.922974, the deep-sea zooplankton biomass reviewed is available in https://doi.org/10.1594/PANGAEA.923149, the reviewed carbon flux and respiration are available in https://doi.org/10.1594/PANGAEA.923832, the acoustic backscatter is available in https://doi.org/10.1594/PANGAEA.922619, and the stable isotope data in https://doi.org/10.1594/PANGAEA.919314 ; The biological pump transports organic carbon produced by photosynthesis to the meso- and bathypelagic zones, the latter removing carbon from exchanging with the atmosphere over centennial time scales. Organisms living in both zones are supported by a passive flux of particles, and carbon transported to the deep-sea through vertical zooplankton migrations. Here we report globally-coherent positive relationships between zooplankton biomass in the epi-, meso-, and bathypelagic layers and average net primary production (NPP). We do so based on a global assessment of available deep-sea zooplankton biomass data and large-scale estimates of average NPP. The relationships obtained imply that increased NPP leads to enhanced transference of organic carbon to the deep ocean. Estimated remineralization from respiration rates by deep-sea zooplankton requires a minimum supply of 0.44 Pg C y−1 transported into the bathypelagic ocean, comparable to the passive carbon sequestration. We suggest that the global coupling between NPP and bathypelagic zooplankton biomass must be also supported by an active transport mechanism associated to vertical zooplankton migration ; This study was funded by projects Malaspina (CSD2008-00077), Bathypelagic (CTM2016-78853-R) from the Spanish Ministry of Economy and Competitiveness, and to projects SUMMER (Grant Agreement 817806) and TRIATLAS (Grant Agreement 817578) from the European Union (Horizon 2020 Research and Innovation Programme) ; Peer reviewed
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