FN Archimer Export Format
PT J
TI Reduced phosphorus loads from the Loire and Vilaine Rivers were accompanied by increasing eutrophication in Vilaine Bay (South Brittany, France)
BT 
AF Ratmaya, Widya
   Soudant, Dominique
   Salmon-Monviola, Jordy
   PLUS, Martin
   Cochennec-Laureau, Nathalie
   Goubert, Evelyne
   ANDRIEUX, Francoise
   Barillé, Laurent
   Souchu, Philippe
AS 1:1;2:2;3:3;4:5;5:1;6:4;7:5;8:6;9:1;
FF 1:PDG-ODE-LITTORAL-LERMPL;2:PDG-ODE-VIGIES;3:;4:PDG-ODE-DYNECO-PELAGOS;5:PDG-ODE-LITTORAL-LERMPL;6:;7:PDG-ODE-DYNECO-PELAGOS;8:;9:PDG-ODE-LITTORAL-LERMPL;
C1 Ifremer , LER MPL, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes CEDEX 03, France
   Ifremer, VIGIES, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes CEDEX 03, France
   INRA/Agrocampus Ouest – UMR1069 Sol Agro et Hydrosystème Spatialisation, 35000 Rennes, France
   Université de Bretagne Sud – GMGL, UMR CNRS 6538 DO, Campus Tohannic, 56000 Vannes, France
   Ifremer, DYNECO PELAGOS, ZI Pointe du Diable, 29280 Plouzané, France
   Université de Nantes, Mer Molécules Santé EA 2160, Faculté des Sciences et des Techniques, BP 92208, 44322 Nantes CEDEX 3, France
C2 IFREMER, FRANCE
   IFREMER, FRANCE
   INRA, FRANCE
   UBS, FRANCE
   IFREMER, FRANCE
   UNIV NANTES, FRANCE
SI NANTES
   BREST
   LA TRINITE
SE PDG-ODE-LITTORAL-LERMPL
   PDG-ODE-VIGIES
   PDG-ODE-DYNECO-PELAGOS
UM LGO
IN WOS Ifremer UPR
   DOAJ
   copubli-france
   copubli-p187
   copubli-univ-france
IF 3.48
TC 23
UR https://archimer.ifremer.fr/doc/00461/57244/59248.pdf
   https://archimer.ifremer.fr/doc/00461/57244/59249.pdf
   https://archimer.ifremer.fr/doc/00461/57244/63395.pdf
   https://archimer.ifremer.fr/doc/00461/57244/63396.pdf
LA English
DT Article
CR PELGAS
AB The evolution of eutrophication (i.e., phytoplankton biomass) during recent decades was examined in the coastal waters of Vilaine Bay (VB, France) in relation to those in their main external nutrient sources, the Loire and Vilaine Rivers. Dynamic Linear Models, corroborated by the Mann-Kendall test, were used to study long-term trends and seasonality of dissolved inorganic nutrient and chlorophyll a concentrations (Chl a) in rivers and coastal waters between 1980 and 2013. The reduction in dissolved riverine inorganic phosphorus concentrations (DIP) from the early 1990s led to the decrease in their Chl a levels. However, dissolved inorganic nitrogen concentrations (DIN) decreased only slightly in the Vilaine and actually increased in the Loire, especially during summer. Simultaneously, phytoplankton in the VB has undergone profound changes with: (1) increase in biomass, (2) change in the position of the annual peak from spring to summer, and (3) increase in diatom:dinoflagellate ratios, especially in summer. The increase in phytoplankton biomass in VB, particularly in summer, was probably due to increased DIN loads from the Loire, sustained by internal regeneration of DIP and dissolved silicate from sediments. This long-term ecosystem-scale analysis reports the consequence of nutrient management scenarios focused solely on P reduction. Freshwater ecosystems upstream reveal successful recoveries through the control of P alone, while eutrophication continues to increase downstream, especially during the period of N limitation. Therefore, nutrient management strategies, paying particular attention to diffuse N-sources, are required to control eutrophication in receiving coastal waters 
PY 2019
PD APR
SO Biogeosciences
SN 1726-4170
PU Copernicus GmbH
VL 16
IS 6
UT 000463158700001
BP 1361
EP 1380
DI 10.5194/bg-16-1361-2019
ID 57244
ER

EF