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The oceanographic toolbox for the collection of sinking and suspended marine particles

The oceanographic toolbox for the collection of sinking and suspended marine particles
The oceanographic toolbox for the collection of sinking and suspended marine particles
Marine particles play a central role in controlling the transport, cycling, and inventories of many major elements and trace elements and isotopes throughout the oceans. Studies seeking to elucidate the biogeochemical roles of marine particles often require reliable ways to collect them from the ocean. Here, we review the oceanographic toolbox of techniques and instrumentation that are employed to collect both suspended and sinking particles. With these tools, it is possible to determine both the concentrations and vertical fluxes of important elements and individual particle types. We describe the various methods for quantifying the concentrations of particulate matter with in situ pumps, towed sampling devices, bottle collectors, and large volume capture devices. The uses of various types of flux collection platforms are discussed including surface tethered, neutrally buoyant, and bottom moored devices. We address the issues of sediment trap collection biases and the apparent inconsistencies that can arise due to differences in the temporal and spatial scales sampled by the various methodologies. Special attention is given to collection considerations made for the analysis of trace metals and isotopes, as these methodologies are of high importance to the ongoing GEOTRACES program which seeks to identify the processes and quantify fluxes that control the distributions of key trace elements and isotopes in the ocean. With the emergence of new particle collection methodologies and the continued reliance on traditional collection methods, it is imperative that we combine these multiple approaches in ways that will help improve their accuracy and precision while enhancing their utility in advancing understanding of the biogeochemical and ecological roles of marine particles.
0079-6611
17-31
McDonnell, Andrew M.P.
4309eb2d-6051-46f5-9955-74fc03fcfbd7
Lam, Phoebe J.
edd6ad71-e42a-4157-bb1d-ef0ec23e8210
Lamborg, Carl H.
a52cbde9-2a94-44c6-8846-4d69f3152420
Buesseler, Ken O.
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Sanders, Richard
02c163c1-8f5e-49ad-857c-d28f7da66c65
Riley, Jennifer Sian
3c9cf46c-4c6c-49db-adb4-e03404509860
Marsay, Chris
58bb99f6-7312-44e4-b169-272986914abd
Smith, Helen E.K.
463cda97-d26b-4fa7-a84c-a3956357f480
Sargent, Elizabeth C.
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Lampitt, Richard S.
dfc3785c-fc7d-41fa-89ee-d0c6e27503ad
Bishop, James K.B.
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McDonnell, Andrew M.P.
4309eb2d-6051-46f5-9955-74fc03fcfbd7
Lam, Phoebe J.
edd6ad71-e42a-4157-bb1d-ef0ec23e8210
Lamborg, Carl H.
a52cbde9-2a94-44c6-8846-4d69f3152420
Buesseler, Ken O.
8462cb4d-f7e0-4a8f-96f3-3e58f6163226
Sanders, Richard
02c163c1-8f5e-49ad-857c-d28f7da66c65
Riley, Jennifer Sian
3c9cf46c-4c6c-49db-adb4-e03404509860
Marsay, Chris
58bb99f6-7312-44e4-b169-272986914abd
Smith, Helen E.K.
463cda97-d26b-4fa7-a84c-a3956357f480
Sargent, Elizabeth C.
0ae4123e-9306-4452-a158-33a3f2cceed7
Lampitt, Richard S.
dfc3785c-fc7d-41fa-89ee-d0c6e27503ad
Bishop, James K.B.
5a0a1231-45e9-4201-9506-c211f8d5e0b3

McDonnell, Andrew M.P., Lam, Phoebe J., Lamborg, Carl H., Buesseler, Ken O., Sanders, Richard, Riley, Jennifer Sian, Marsay, Chris, Smith, Helen E.K., Sargent, Elizabeth C., Lampitt, Richard S. and Bishop, James K.B. (2015) The oceanographic toolbox for the collection of sinking and suspended marine particles. Progress in Oceanography, 133, 17-31. (doi:10.1016/j.pocean.2015.01.007).

Record type: Article

Abstract

Marine particles play a central role in controlling the transport, cycling, and inventories of many major elements and trace elements and isotopes throughout the oceans. Studies seeking to elucidate the biogeochemical roles of marine particles often require reliable ways to collect them from the ocean. Here, we review the oceanographic toolbox of techniques and instrumentation that are employed to collect both suspended and sinking particles. With these tools, it is possible to determine both the concentrations and vertical fluxes of important elements and individual particle types. We describe the various methods for quantifying the concentrations of particulate matter with in situ pumps, towed sampling devices, bottle collectors, and large volume capture devices. The uses of various types of flux collection platforms are discussed including surface tethered, neutrally buoyant, and bottom moored devices. We address the issues of sediment trap collection biases and the apparent inconsistencies that can arise due to differences in the temporal and spatial scales sampled by the various methodologies. Special attention is given to collection considerations made for the analysis of trace metals and isotopes, as these methodologies are of high importance to the ongoing GEOTRACES program which seeks to identify the processes and quantify fluxes that control the distributions of key trace elements and isotopes in the ocean. With the emergence of new particle collection methodologies and the continued reliance on traditional collection methods, it is imperative that we combine these multiple approaches in ways that will help improve their accuracy and precision while enhancing their utility in advancing understanding of the biogeochemical and ecological roles of marine particles.

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More information

Published date: April 2015
Organisations: Ocean and Earth Science, Marine Biogeochemistry

Identifiers

Local EPrints ID: 376929
URI: http://eprints.soton.ac.uk/id/eprint/376929
ISSN: 0079-6611
PURE UUID: ae6b8674-ffc7-4a80-98c8-4ef24a643f0c

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Date deposited: 08 May 2015 12:49
Last modified: 27 Apr 2022 08:37

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Contributors

Author: Andrew M.P. McDonnell
Author: Phoebe J. Lam
Author: Carl H. Lamborg
Author: Ken O. Buesseler
Author: Richard Sanders
Author: Jennifer Sian Riley
Author: Chris Marsay
Author: Helen E.K. Smith
Author: Elizabeth C. Sargent
Author: Richard S. Lampitt
Author: James K.B. Bishop

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