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| Titel |
Seasonal cycling of phosphorus in the Southern Bight of the North Sea |
| VerfasserIn |
C. Zee, L. Chou |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 2, no. 1 ; Nr. 2, no. 1 (2005-02-18), S.27-42 |
| Datensatznummer |
250000377
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| Publikation (Nr.) |
 copernicus.org/bg-2-27-2005.pdf |
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| Zusammenfassung |
We have investigated the seasonal cycle of nutrients, chlorophyll a,
dissolved organic nitrogen (DON), and dissolved and particulate organic
carbon (DOC and POC) for 10 stations in the Belgian coastal zone. Special
attention was given to phosphorus speciation, i.e. dissolved inorganic and
organic phosphorus (DIP and DOP) and particulate inorganic and organic
phosphorus (PIP and POP).
Spatial and temporal trends of the inorganic nutrients and the organic
species are discussed. The Belgian part of the southern North Sea is
strongly influenced by the river plumes of the Rhine, Meuse and Scheldt
resulting in northeast-southwest salinity gradient. Extrapolation of winter
nutrient and DOC concentrations versus salinity plots yielded zero-salinity
values typical of the river Scheldt. The polyphosphate concentration did not
show any temporal trend, whereas both the phosphate and the DOP
concentrations exhibited distinct seasonal variations. Silica or phosphorus
was the potential limiting nutrient for phytoplankton growth based on
elemental ratios. |
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