title: Silver nanoparticles impact the functional role of Gammarus roeseli (Crustacea Amphipoda).
abstract: Silver nanoparticles (nAg) are widely used in consumer products and the risk associated with their potential release into freshwater ecosystems needs to be addressed using environmentally realistic exposure concentrations. Here, the effects of low concentrations (0.5-5 μg L(-1)) of two different sized nAg (10 and 60 nm) and a silver nitrate positive control were evaluated in Gammarus roeseli following exposure for 72 h. Cellular, individual and functional endpoints were independently studied and the most striking results were reported for functional endpoints. Indeed, without a change in their feeding activity, the gammarids produced significantly fewer fine particles of organic matter when exposed to nAg, even at 0.5 μg L(-1) of 10 nm nAg. These functional endpoints seem to be efficient markers for detecting the early effects of nAg on G. roeseli.
authors.affiliation: Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC) - Université de Lorraine, UMR 7360 CNRS, UFR SciFA, Campus Bridoux, Rue du Général Delestraint, 57070 Metz, France. Electronic address: jennifer.andrei@univ-lorraine.fr.
authors.forename: Jennifer
authors.initials: J
authors.lastname: Andreï
authors.affiliation: Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC) - Université de Lorraine, UMR 7360 CNRS, UFR SciFA, Campus Bridoux, Rue du Général Delestraint, 57070 Metz, France.
authors.forename: Sandrine
authors.initials: S
authors.lastname: Pain-Devin
authors.affiliation: Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC) - Université de Lorraine, UMR 7360 CNRS, UFR SciFA, Campus Bridoux, Rue du Général Delestraint, 57070 Metz, France.
authors.forename: Vincent
authors.initials: V
authors.lastname: Felten
authors.affiliation: Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC) - Université de Lorraine, UMR 7360 CNRS, UFR SciFA, Campus Bridoux, Rue du Général Delestraint, 57070 Metz, France.
authors.forename: Simon
authors.initials: S
authors.lastname: Devin
authors.affiliation: Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC) - Université de Lorraine, UMR 7360 CNRS, UFR SciFA, Campus Bridoux, Rue du Général Delestraint, 57070 Metz, France; International Consortium for the Environmental Implications of Nanotechnology (iCEINT), Aix en Provence, France.
authors.forename: Laure
authors.initials: L
authors.lastname: Giambérini
authors.affiliation: Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC) - Université de Lorraine, UMR 7360 CNRS, UFR SciFA, Campus Bridoux, Rue du Général Delestraint, 57070 Metz, France; Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST) - 41, rue du Brill, L-4422 Belvaux, Luxembourg.
authors.forename: Kahina
authors.initials: K
authors.lastname: Mehennaoui
authors.affiliation: Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST) - 41, rue du Brill, L-4422 Belvaux, Luxembourg.
authors.forename: Sebastien
authors.initials: S
authors.lastname: Cambier
authors.affiliation: Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST) - 41, rue du Brill, L-4422 Belvaux, Luxembourg.
authors.forename: Arno C
authors.initials: AC
authors.lastname: Gutleb
authors.affiliation: Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC) - Université de Lorraine, UMR 7360 CNRS, UFR SciFA, Campus Bridoux, Rue du Général Delestraint, 57070 Metz, France.
authors.forename: François
authors.initials: F
authors.lastname: Guérold
mesh_terms: D033304:Amphipoda / Q000187:drug effects / Q000502:physiology*; D000818:Animals; D017753:Ecosystem; D005618:Fresh Water; D053758:Nanoparticles / Q000633:toxicity*; D012834:Silver / Q000633:toxicity*; D018675:Toxicity Tests; D014874:Water Pollutants, Chemical / Q000633:toxicity*
chemical_list: D014874:Water Pollutants, Chemical; D012834:Silver
keywords: Behavior; Functional role; Gammarus roeseli; Nanoparticles; Silver