Organic carbon budget for the eastern boundary of the North Atlantic subtropical gyre: Major role of DOC in mesopelagic respiration

Transports of suspended particulate (POCsusp) and dissolved (DOC) organic carbon are inferred from a box-model covering the eastern boundary of the North Atlantic subtropical gyre. Corresponding net respiration rates (R) are obtained from a net organic carbon budget that is based on the transport es...

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Bibliographic Details
Published in:Scientific Reports
Main Authors: Santana Falcon, Yeray, Álvarez Salgado, X. Antón, Perez Hernandez, Maria Dolores, Hernandez-Guerra, Alonso, Mason, Evan, Aristegui, Javier
Other Authors: Perez-Hernandez, Maria, Alvarez-Salgado, Xose Anton, Santana-Falcon, Yeray, 56162676800, 7004656202, 50861902200, 6701736545, 56455072400, 35264466500, 7006816204, 8764374, 237391, 3057975, 660191, 1414204, 227201, WOS:Santana-Falcon, Y, WOS:Alvarez-Salgado, XA, WOS:Perez-Hernandez, MD, WOS:Hernandez-Guerra, A, WOS:Mason, E, WOS:Aristegui, J
Format: Article in Journal/Newspaper
Language:English
Published: 2017
Subjects:
251001 Oceanografía biológica
Oxygen Utilization Rates
Mediterranean Water
Time-Series
Inorganic Carbon
Marine Snow
Ocean
Matter
Strait
Export
Zooplankton
North Atlantic
Online Access:http://hdl.handle.net/10553/23607
https://doi.org/10.1038/s41598-017-10974-y
Description
Summary:Transports of suspended particulate (POCsusp) and dissolved (DOC) organic carbon are inferred from a box-model covering the eastern boundary of the North Atlantic subtropical gyre. Corresponding net respiration rates (R) are obtained from a net organic carbon budget that is based on the transport estimates, and includes both vertical and lateral fluxes. The overall R in the mesopelagic layer (100-1500 m) is 1.6 ± 0.4 mmol C m-2 d-1. DOC accounts for up to 53% of R as a result of drawdown of organic carbon within Eastern North Atlantic Central Water (ENACW) that is entrained into sinking Mediterranean Overflow Water (MOW) that leads to formation of Mediterranean water (MW) at intermediate depths (~900 m).

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