[1] Univ Montpellier 2, CNRS IFREMER IRD UM2, UMR Ecosyst Lagunaires 5119, F-34095 Montpellier, France
[2] Museum Natl Hist Nat, IRD CNRS MNHN UPMC 207 7208, UMR Biol Organismes & Ecosyst Aquat, F-75005 Paris, France
[3] Univ Antwerp, Dept Biol, Fac Sci, Ecosyst Management Res Grp, BE-2610 Antwerp, Belgium
[4] Univ Utrecht, Fac Geosci, NL-3508 TC Utrecht, Netherlands
[5] Univ Toulouse 3, CNRS, UMR 5245, Lab Ecol Fonct, F-31062 Toulouse 4, France