1. Irstea; UR MALY; Centre de Lyon-Villeurbanne; Villeurbanne Cedex France
2. CESAB-FRB; Immeuble Henri Poincaré; Aix-en-Provence Cedex France
3. Ecosystem Management; School of Environmental and Rural Science; University of New England; Armidale NSW Australia
4. US Bureau of Land Management - Utah State University National Aquatic Monitoring Center; Department of Watershed Sciences; Utah State University; Logan UT U.S.A.
5. US EPA; Office of Research and Development; National Exposure Research Laboratory; Cincinnati OH U.S.A.
6. Department of Biology; James Madison University; Harrisonburg VA U.S.A.
7. Wyoming Cooperative Fish & Wildlife Research Unit; Department of Zoology & Physiology; University of Wyoming; Laramie WY U.S.A.
8. UMR “BOREA” CNRS 7208/IRD 207/MNHN/UPMC; DMPA; Museum National d'Histoire Naturelle; Paris Cedex France