FN Archimer Export Format
PT C
TI Phosphorus and nitrogen future in eutrophised mediterranean lagoons
BT 
AF OUISSE, Vincent
   FIANDRINO, Annie
   MALET, Nathalie
   MUNARON, Dominique
   FORTUNE, Martine
   OHEIX, Jocelyne
   BALEUX, Maeva
   LAGARDE, Franck
   Le Noc, Sandrine
   DE WIT, Rutger
AS 1:1;2:1;3:1;4:1;5:1;6:1;7:1;8:1;9:2;10:2;
FF 1:PDG-ODE-LER-LERLR;2:PDG-ODE-LER-LERLR;3:PDG-ODE-LER-LERPAC;4:PDG-ODE-LER-LERLR;5:PDG-ODE-LER-LERLR;6:PDG-ODE-LER-LERLR;7:PDG-ODE-LER-LERLR;8:PDG-ODE-LER-LERLR;9:;10:;
C1 Ifremer, france
   Univ. Montpellier, France
C2 IFREMER, FRANCE
   UNIV. MONTPELLIER, FRANCE
SI SETE
   CORSE
   Montpellier
SE PDG-ODE-LER-LERLR
   PDG-ODE-LER-LERPAC
UR https://archimer.ifremer.fr/doc/00118/22899/20717.pdf
LA English
DT Poster
AB Increased nitrogen and phosphorus inputs from watersheds, especially since the 1960s with the increased anthropogenic activities is recognized as a major cause of environmental degradation of coastal ecosystems. On the Mediterranean coast, lagoons are particularly affected by the eutrophication leading to significant changes in ecosystem structure, functioning and services. Since 2000, the “Région Languedoc-Roussillon”, the “Agence de l’Eau Rhône Mediterranée & Corse” and Ifremer developed a lagoon monitoring network (RSL) focusses upon eutrophication to assess and monitor status of 24 lagoons of Languedoc-Roussillon and Corsica.  	Many actions on watershed led to a significant reduction of nutrient inputs. However, the time required to restore these degraded environments to achieve good ecological status under the Water Framework Directive (WFD) is unknown. Coastal restoration is characterized by a hysteresis, i.e. a partial or complete restoration involving different processes and generally longer than the rapid degradation mechanisms. This hysteresis is due to a complex ecosystem functioning involving all physical, chemical and biological processes that play a role in the matter cycles. In a lagoon, the recovery time will depend on:  - the structure and functioning of the communities  - the release of nitrogen and phosphorus implicated as the internal load  - the ability to export the excess nitrogen and phosphorus to the open areas.  Aims of the study :  - to characterize and quantify the main nutrient flows participating in the reduction of internal nitrogen and phosphorus content in Mediterranean lagoons - to improve the parametrization of mathematical models - to define dynamic restoration scenarios of eutrophised Mediterranean lagoons
PY 2012
PD OCT
ID 22899
ER

EF