Tracks in the Snow – Advantage of Combining Optical Methods to Characterize Marine Particles and Aggregates.
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Markussen, Thor N.
Iversen, Morten H.
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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.....
JournalFrontiers in Marine Science
Sustainable Development Goals (SDG)14.A
Essential Ocean Variables (EOV)Particulate matter
Best Practice TypeManual (incl. handbook, guide, cookbook etc)
CitationMarkussen, 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.2020.00476
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