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| Titel |
The role of biomineral in the transport of POC from the surface ocean |
| VerfasserIn |
F. Le Moigne, R. J. Sanders, M. Villa, A. Martin, K. Pabortsava, H. Planquette, P. J. Morris, S. J. Thomalla |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250062207
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| Zusammenfassung |
| The efficiency and time scales for oceanic CO2 sequestration through the marine biota
(biological carbon pump) depends critically on how much particulate organic carbon (POC)
is exported below the winter mixed layer. The aggregation of biominerals (calcite
and opal) with POC might play a key role in ballasting POC that may promote
efficient particle export to the ocean interior. Indeed, recent studies have shown that
relationships exist between the fluxes of POC with biominerals to the deep sea.
However, the paucity of data from the upper ocean means that the potential ballasting
mechanisms that may promote particle export from the upper ocean are poorly
understood. This therefore prevents the determination of a potential relationship
between POC and biominerals fluxes in an analogous manner. Here we present
positives correlations of biomineral and POC 234Th derived export numbers and
multiple linear regression analyses from 60 Atlantic and Southern Ocean stations. |
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