[1] Catholic Univ Louvain, Inst Life Sci, Pl Croix Sud 2 L7-05-08, B-1348 Louvain La Neuve, Belgium
[2] Irstea, UR RiverLy, Ctr Lyon Villeurbanne, F-69625 Villeurbanne, France
[3] Univ Liege, Lab Oceanol, Freshwater & Ocean Sci Unit Res FOCUS, Allee 6 Aout B6C, B-4000 Liege, Belgium