Tracks in the Snow – Advantage of Combining Optical Methods to Characterize Marine Particles and Aggregates.
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Date
2020Author
Markussen, Thor N.
Konrad, Christian
Waldmann, Christoph
Becker, Marius
Fischer, Gerhard
Iversen, Morten H.
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Show full item recordAbstract
Settling marine aggregates, such as zooplankton fecal pellets and marine snow,
transport organic matter from the surface ocean to the deep sea and are largely
responsible for the ocean’s sequestration of carbon. However, our understanding of
the functioning of the biological pump and the distribution of particulate organic matter
in the water column often hinge on limited bulk data from sediment traps, large volume
filtration or instantaneous snap-shots from in situ optical systems that only see a small
part of the particle and aggregate spectra. We evaluated the added value of combining
different optical systems to detect a range of organic and inorganic particle types during
a case-study in the Cape Blanc upwelling region. Laboratory calibrations showed that
one camera system detected large organic aggregates well and in situ data showed
that it correlated positively with fluorescence. The other camera was better at detecting
small, mainly inorganic particles which were no.....
Journal
Frontiers in Marine ScienceVolume
7Issue
Article 746Page Range
12pp.Document Language
enSustainable Development Goals (SDG)
14.AEssential Ocean Variables (EOV)
Particulate matterBest Practice Type
Manual (incl. handbook, guide, cookbook etc)DOI Original
10.3389/fmars.2020.00476Citation
Markussen, T.N.; Konrad, C.; Waldmann, C.; Becker, M,; Fischer, G,; and Iversen, M.H. (2020) Tracks in the Snow – Advantage of Combining Optical Methods to Characterize Marine Particles and Aggregates. Frontiersin Marine Science, 7:476, 12pp, DOI: 10.3389/fmars.2020.00476Collections
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