Production of chromophoric dissolved organic matter (CDOM) in the open ocean by zooplankton and the colonial cyanobacterium Trichodesmium spp.
Chromophoric (or colored) dissolved organic matter (CDOM) has been identified as a major determinant of the optical properties of oligotrophic oceans. The factors controlling distribution of CDOM far from the direct influence of land are not well known, as CDOM abundance and distribution does not di...
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ftwilliammarycol:oai:scholarworks.wm.edu:vimsarticles-1165 2024-06-23T07:55:02+00:00 Production of chromophoric dissolved organic matter (CDOM) in the open ocean by zooplankton and the colonial cyanobacterium Trichodesmium spp. Steinberg, Deborah K. Nelson, NB Carlson, CA Prusak, AC 2004-01-01T08:00:00Z application/pdf https://scholarworks.wm.edu/vimsarticles/166 doi: 10.3354/meps267045 https://scholarworks.wm.edu/context/vimsarticles/article/1165/viewcontent/m267p045.pdf unknown W&M ScholarWorks https://scholarworks.wm.edu/vimsarticles/166 doi: 10.3354/meps267045 https://scholarworks.wm.edu/context/vimsarticles/article/1165/viewcontent/m267p045.pdf VIMS Articles zooplankton Trichodesmium chromophoric dissolved organic matter CDOM excretion Sargasso Sea North Atlantic Biological Sciences Peer-Reviewed Articles Marine Biology text 2004 ftwilliammarycol https://doi.org/10.3354/meps267045 2024-06-05T03:30:42Z Chromophoric (or colored) dissolved organic matter (CDOM) has been identified as a major determinant of the optical properties of oligotrophic oceans. The factors controlling distribution of CDOM far from the direct influence of land are not well known, as CDOM abundance and distribution does not directly correlate with phytoplankton productivity or biomass, or with dissolved organic matter (DOM) concentration. As part of a larger study of the dynamics of CDOM in the open ocean, we investigated direct release from plankton as a factor contributing to distribution patterns of CDOM. We measured the production of CDOM by zooplankton (copepods, euphausiids, amphipods, salps, polychaetes), protozoans (colonial radiolaria), and by the colonial cyanobacterium Trichodesmium spp. in the North Atlantic subtropical gyre. Groups of individual species of plankton were incubated and absorption spectra were obtained for their release products. CDOM was produced by all organisms examined, and absorption spectra varied by taxa, with major taxa exhibiting characteristic absorption peaks. Plankton-produced DOM is a source of labile carbon and thus facilitates microbial activity, and CDOM may also serve as photoprotection for near-surface-living organisms. Zooplankton likely play an important role in the CDOM cycle in the Sargasso Sea, directly through release/excretion of CDOM and indirectly by providing a labile substrate (excretia) for microbial-mediated production of CDOM. Text North Atlantic Copepods W&M ScholarWorks Marine Ecology Progress Series 267 45 56 |
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ftwilliammarycol |
language |
unknown |
topic |
zooplankton Trichodesmium chromophoric dissolved organic matter CDOM excretion Sargasso Sea North Atlantic Biological Sciences Peer-Reviewed Articles Marine Biology |
spellingShingle |
zooplankton Trichodesmium chromophoric dissolved organic matter CDOM excretion Sargasso Sea North Atlantic Biological Sciences Peer-Reviewed Articles Marine Biology Steinberg, Deborah K. Nelson, NB Carlson, CA Prusak, AC Production of chromophoric dissolved organic matter (CDOM) in the open ocean by zooplankton and the colonial cyanobacterium Trichodesmium spp. |
topic_facet |
zooplankton Trichodesmium chromophoric dissolved organic matter CDOM excretion Sargasso Sea North Atlantic Biological Sciences Peer-Reviewed Articles Marine Biology |
description |
Chromophoric (or colored) dissolved organic matter (CDOM) has been identified as a major determinant of the optical properties of oligotrophic oceans. The factors controlling distribution of CDOM far from the direct influence of land are not well known, as CDOM abundance and distribution does not directly correlate with phytoplankton productivity or biomass, or with dissolved organic matter (DOM) concentration. As part of a larger study of the dynamics of CDOM in the open ocean, we investigated direct release from plankton as a factor contributing to distribution patterns of CDOM. We measured the production of CDOM by zooplankton (copepods, euphausiids, amphipods, salps, polychaetes), protozoans (colonial radiolaria), and by the colonial cyanobacterium Trichodesmium spp. in the North Atlantic subtropical gyre. Groups of individual species of plankton were incubated and absorption spectra were obtained for their release products. CDOM was produced by all organisms examined, and absorption spectra varied by taxa, with major taxa exhibiting characteristic absorption peaks. Plankton-produced DOM is a source of labile carbon and thus facilitates microbial activity, and CDOM may also serve as photoprotection for near-surface-living organisms. Zooplankton likely play an important role in the CDOM cycle in the Sargasso Sea, directly through release/excretion of CDOM and indirectly by providing a labile substrate (excretia) for microbial-mediated production of CDOM. |
format |
Text |
author |
Steinberg, Deborah K. Nelson, NB Carlson, CA Prusak, AC |
author_facet |
Steinberg, Deborah K. Nelson, NB Carlson, CA Prusak, AC |
author_sort |
Steinberg, Deborah K. |
title |
Production of chromophoric dissolved organic matter (CDOM) in the open ocean by zooplankton and the colonial cyanobacterium Trichodesmium spp. |
title_short |
Production of chromophoric dissolved organic matter (CDOM) in the open ocean by zooplankton and the colonial cyanobacterium Trichodesmium spp. |
title_full |
Production of chromophoric dissolved organic matter (CDOM) in the open ocean by zooplankton and the colonial cyanobacterium Trichodesmium spp. |
title_fullStr |
Production of chromophoric dissolved organic matter (CDOM) in the open ocean by zooplankton and the colonial cyanobacterium Trichodesmium spp. |
title_full_unstemmed |
Production of chromophoric dissolved organic matter (CDOM) in the open ocean by zooplankton and the colonial cyanobacterium Trichodesmium spp. |
title_sort |
production of chromophoric dissolved organic matter (cdom) in the open ocean by zooplankton and the colonial cyanobacterium trichodesmium spp. |
publisher |
W&M ScholarWorks |
publishDate |
2004 |
url |
https://scholarworks.wm.edu/vimsarticles/166 https://scholarworks.wm.edu/context/vimsarticles/article/1165/viewcontent/m267p045.pdf |
genre |
North Atlantic Copepods |
genre_facet |
North Atlantic Copepods |
op_source |
VIMS Articles |
op_relation |
https://scholarworks.wm.edu/vimsarticles/166 doi: 10.3354/meps267045 https://scholarworks.wm.edu/context/vimsarticles/article/1165/viewcontent/m267p045.pdf |
op_doi |
https://doi.org/10.3354/meps267045 |
container_title |
Marine Ecology Progress Series |
container_volume |
267 |
container_start_page |
45 |
op_container_end_page |
56 |
_version_ |
1802647427976527872 |