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Variabilité spatio-temporelle des nutriments et du carbone et flux associés le long d’un continuum terrestre-aquatique tempéré (Marais poitevin – Baie de l’Aiguillon – Pertuis Breton) ArchiMer
Polsenaere, Pierre; Lannuzel, Reva; Guesdon, Stephane; Le Moine, Olivier; Soletchnik, Patrick.
  Coastal zones are key systems in biogeochemical cycle couplings between continents, oceans and the atmosphere. Altered by climate change and anthropogenic pressures, there’s a need to predict potential changes to better manage ecosystem functions and services they provided. This study deals with the carbon and nutrient dynamic over a temperate marsh-coastal continuum (Poitevin Marsh-Aiguillon Bay-Breton Sound). Concentrations of carbon, nitrogen, phosphorus and silica were measured twice a month during a year at various locations: estuaries, channels, coastal sites. This coastal zone shelters important blue mussel farming sites and is under the influence of an anthropized watershed where specific lock managements regulate freshwater inputs. Though...
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Ano: 2018 URL: https://archimer.ifremer.fr/doc/00461/57284/59389.pdf
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Dynamique du carbone et des nutriments dans la zone côtière Baie de l’Aiguillon-Pertuis Breton et influence des apports terrestres du bassin versant du Marais poitevin ArchiMer
Lannuzel, Reva.
Coastal zones represent key systems in biogeochemical cycle couplings between continents, oceans and the atmosphere transporting considerable amounts of matter, energy and nutrients (C, N, P et Si) from land to sea. Despite its relatively modest surface area (7 % of the global ocean surface), this zone accounts for 14–30 % of all oceanic primary production. The present study deals with nutrients and carbon dynamics during a full hydrologic cycle in 2017 over the terrestrial-aquatic continuum formed by the Poitevin Marsh-Aiguillon Bay- Breton Sound to better understand terrestrial export influence on the coastal zone. Carbon and nutrient concentrations were sampled twice a month over heterogeneous sites (estuaries, channels and coastal sites) to integrate...
Tipo: Text Palavras-chave: Zone côtière; Biogéochimie; Carbone; Nutriments; Chlorophylle a; Limitation potentielle et réelle; Dynamique.; Coastal zone; Biogeochemistry; Carbon; Nutrients; Chlorophyll a; Real and potential limitation; Spatio-temporal dynamic..
Ano: 2018 URL: http://archimer.ifremer.fr/doc/00445/55647/57299.pdf
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