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Engel, Anja; Wagner, Hannes; Le Moigne, Frédéric A C; Wilson, Samuel T (2017): Particle export fluxes to the oxygen minimum zone of the eastern tropical North Atlantic [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.874268, Supplement to: Engel, A et al. (2017): Particle export fluxes to the oxygen minimum zone of the eastern tropical North Atlantic. Biogeosciences, 14(7), 1825-1838, https://doi.org/10.5194/bg-14-1825-2017

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Published: 2017-04-04 • DOI registered: 2017-05-04

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Abstract:
In the ocean, sinking of particulate organic mat- ter (POM) drives carbon export from the euphotic zone and supplies nutrition to mesopelagic communities, the feeding and degradation activities of which in turn lead to export flux attenuation. Oxygen (O2) minimum zones (OMZs) with suboxic water layers (< 5 µmol O2 kg-1 ) show a lower carbon flux attenuation compared to well- oxygenated waters (> 100 µmol O2 kg-1), supposedly due to reduced heterotrophic activity. This study focuses on sinking particle fluxes through hypoxic mesopelagic waters (< 60 µmol O2 kg-1); these represent about 100 times more ocean volume globally compared to suboxic waters, but they have less been studied. Particle export fluxes and attenuation coefficients were determined in the eastern tropical North Atlantic (ETNA) using two surface-tethered drifting sediment trap arrays with seven trapping depths located between 100 and 600 m.
Related to:
Tanhua, Toste (2016): Hydrochemistry of water samples during METEOR cruise M105 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.864810
Project(s):
Climate - Biogeochemistry Interactions in the Tropical Ocean (SFB754)
Funding:
German Research Foundation (DFG), grant/award no. 27542298: Climate - Biogeochemistry Interactions in the Tropical Ocean
Coverage:
Median Latitude: 10.124915 * Median Longitude: -20.999915 * South-bound Latitude: 10.000000 * West-bound Longitude: -21.000000 * North-bound Latitude: 10.249830 * East-bound Longitude: -20.999830
Date/Time Start: 2014-03-24T09:02:00 * Date/Time End: 2014-03-27T14:01:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
6 datasets

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Datasets listed in this publication series

  1. Engel, A (2017): Particle export fluxes from sediment traps during METEOR cruise M105: Fluxes of total mass, particulate organic car- bon (POC), particulate nitrogen (PN) and particulate organic phosphorus (POP). https://doi.org/10.1594/PANGAEA.874315
  2. Engel, A (2017): Particle export fluxes from sediment traps during METEOR cruise M105: Fluxes of chlorophyll a (Chl a), opal, TEP and PHAA. https://doi.org/10.1594/PANGAEA.874267
  3. Engel, A (2017): Particle export fluxes from sediment traps during METEOR cruise M105: Changes in mineral ballast ratios of sinking particles with depth. https://doi.org/10.1594/PANGAEA.874316
  4. Engel, A (2017): Particle export fluxes from sediment traps during METEOR cruise M105: Changes in organic matter composition of particles sinking through the OMZ. https://doi.org/10.1594/PANGAEA.874317
  5. Engel, A (2017): Particle export fluxes from sediment traps during METEOR cruise M105: Molar percentages of selected amino acids contained in PHAA. https://doi.org/10.1594/PANGAEA.874318
  6. Engel, A (2017): Particle export fluxes from sediment traps during METEOR cruise M105: Composition (%Mol) of PHAA. https://doi.org/10.1594/PANGAEA.874314