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Apports de nutriments et développement phytoplanctonique en baie de Seine ArchiMer
Aminot, Alain; Guillaud, Jean-francois; Andrieux Loyer, Francoise; Kerouel, Roger; Cann, Philippe.
As part of the Programme National d'Oceanographie Cotiere, the nutrient dynamics of the Bay of Seine were studied between 1992 and 1994 in order to complement work on ecological modelling. Firstly, the River Seine's nutrient fluxes were established: 80 000-130 000 t a(-1) of dissolved inorganic nitrogen, 6 400-8 400 t a(-1) of dissolved phosphorus and 20 000-77 000 t a(-1) of dissolved silicium. Estuarine processes were taken into account. Consequences of nutrient loading for the bay were then evaluated at the pelagic level (nutrient and chlorophyll enrichments) and the benthic level (distribution of various phosphorus fractions in superficial sediments). The large continental inputs always induce concentration gradients in the water from the mouth of the...
Tipo: Text Palavras-chave: Baie de Seine; Rapport de consommation; Chlorophylle; Nutriment; Bay of Seine; Uptake ratio; Chlorophyll; Nutrient.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/1998/publication-844.pdf
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