A visual tour of carbon export by sinking particles Article Swipe
YOU?
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· 2021
· Open Access
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· DOI: https://doi.org/10.1101/2021.02.16.431317
To better quantify the ocean’s biological carbon pump, we resolved the diversity of sinking particles that transport carbon into the ocean’s interior, their contribution to carbon export, and their attenuation with depth. Sinking particles collected in sediment trap gel layers from 4 distinct ocean ecosystems were imaged, measured, and classified. The size and identity of particles was used to model their contribution to particulate organic carbon (POC) flux. Measured POC fluxes were reasonably predicted by particle images. Nine particle types were identified, and most of the compositional variability was driven by the relative contribution of aggregates, long cylindrical fecal pellets, and salp fecal pellets. While particle composition varied across locations and seasons, the entire range of compositions was measured at a single well-observed location in the subarctic North Pacific over 1 month, across 500 m of depth. The magnitude of POC flux was not consistently associated with a dominant particle class, but particle classes did influence flux attenuation. Long fecal pellets attenuated most rapidly with depth whereas certain other classes attenuated little or not at all with depth. Small particles (<100 μ m) consistently contributed ∼5% to total POC flux in samples with higher magnitude fluxes. The relative importance of these small particle classes (spherical mini pellets, short oval fecal pellets, and dense detritus) increased in low flux environments (up to 46% of total POC flux). Imaging approaches that resolve large variations in particle composition across ocean basins, depth, and time will help to better parameterize biological carbon pump models.
Related Topics
- Type
- preprint
- Language
- en
- Landing Page
- https://doi.org/10.1101/2021.02.16.431317
- https://www.biorxiv.org/content/biorxiv/early/2021/02/17/2021.02.16.431317.full.pdf
- OA Status
- green
- Cited By
- 10
- References
- 62
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3132784758
Raw OpenAlex JSON
- OpenAlex ID
-
https://openalex.org/W3132784758Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.1101/2021.02.16.431317Digital Object Identifier
- Title
-
A visual tour of carbon export by sinking particlesWork title
- Type
-
preprintOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2021Year of publication
- Publication date
-
2021-02-17Full publication date if available
- Authors
-
Colleen A. Durkin, Ken O. Buesseler, Ivona Cetinić, Margaret Estapa, Roger Kelly, Melissa OmandList of authors in order
- Landing page
-
https://doi.org/10.1101/2021.02.16.431317Publisher landing page
- PDF URL
-
https://www.biorxiv.org/content/biorxiv/early/2021/02/17/2021.02.16.431317.full.pdfDirect link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
greenOpen access status per OpenAlex
- OA URL
-
https://www.biorxiv.org/content/biorxiv/early/2021/02/17/2021.02.16.431317.full.pdfDirect OA link when available
- Concepts
-
Pellets, Flux (metallurgy), Particle (ecology), Sediment trap, Carbon fibers, Detritus, Environmental science, Biological pump, Atmospheric sciences, Particle size, Range (aeronautics), Oceanic basin, Mineralogy, Oceanography, Geology, Carbon cycle, Chemistry, Ecosystem, Materials science, Ecology, Geomorphology, Biology, Composite material, Paleontology, Organic chemistry, Structural basin, Composite numberTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
10Total citation count in OpenAlex
- Citations by year (recent)
-
2024: 3, 2023: 2, 2021: 5Per-year citation counts (last 5 years)
- References (count)
-
62Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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