title: Variation in the response of the invasive species Potamopyrgus antipodarum (Smith) to natural (cyanobacterial toxin) and anthropogenic (herbicide atrazine) stressors.
abstract: In the context of increasing freshwater pollution, the impact on life-traits (survival, growth and fecundity) and locomotion of Potamopyrgus antipodarum of a 5-week field-concentration exposure to the cyanobacterial toxin microcystin-LR and the triazine herbicide, atrazine was studied. Whatever the age of exposed snails (juveniles, subadults, adults), microcystin-LR induced a decrease in survival, growth and fecundity but had no effect on locomotion. Atrazine induced a decrease in locomotory activity but had no significant effect on the life-traits. These results are discussed in terms of consequences to field populations.
authors.affiliation: UMR CNRS Ecobio 6553, Equipe Physiologie et Ecophysiologie, Université de Rennes 1, Avenue du Général Leclerc, 35042 Rennes cedex, France. claudia.gerard@univ-rennes1.fr
authors.forename: Claudia
authors.initials: C
authors.lastname: Gerard
authors.forename: Virginie
authors.initials: V
authors.lastname: Poullain
mesh_terms: D000818:Animals; D001280:Atrazine / Q000633:toxicity*; D006540:Herbicides / Q000633:toxicity*; D008018:Life Cycle Stages / Q000187:drug effects; D008124:Locomotion / Q000187:drug effects; D008387:Marine Toxins; D052998:Microcystins; D010456:Peptides, Cyclic / Q000633:toxicity*; D012908:Snails / Q000187:drug effects*; D018675:Toxicity Tests; D014874:Water Pollutants, Chemical / Q000633:toxicity*
chemical_list: D006540:Herbicides; D008387:Marine Toxins; D052998:Microcystins; D010456:Peptides, Cyclic; D014874:Water Pollutants, Chemical; C057862:cyanoginosin LR; D001280:Atrazine