title: Effect of gender on physiological and behavioural responses of Gammarus roeseli (Crustacea Amphipoda) to salinity and temperature.
abstract: The importance of potentially interacting factors in organisms responses to a stress are often ignored or underestimated in ecotoxicology. In laboratory experiments we investigated how gender, temperature and age influence the behaviour and the physiology of the freshwater amphipod Gammarus roeseli under salinity stress. Our results revealed a significant higher sensitivity of females in survival, ventilation and ionoregulation whereas no inter-age differences were reported. Water temperature also exerted a significant effect in survival and ventilation of G. roeseli. Some of those factors appeared to interact significantly. This study provides evidence that gender can affect organisms responses to a stressor and consequently has to be considered while assessing a stress impact. We discussed the potential relationships between biological and behavioural responses.
authors.affiliation: Université de Metz, Laboratoire Interactions Ecotoxicologie Biodiversité Ecosystèmes (LIEBE), CNRS UMR 7146, Avenue du Général Delestraint, 57070 Metz, France. pascal.sornom@umail.univ-metz.fr
authors.forename: Pascal
authors.initials: P
authors.lastname: Sornom
authors.forename: Vincent
authors.initials: V
authors.lastname: Felten
authors.forename: Vincent
authors.initials: V
authors.lastname: Médoc
authors.forename: Sophie
authors.initials: S
authors.lastname: Sroda
authors.forename: Philippe
authors.initials: P
authors.lastname: Rousselle
authors.forename: Jean-Nicolas
authors.initials: JN
authors.lastname: Beisel
mesh_terms: D033304:Amphipoda / Q000737:chemistry / Q000502:physiology*; D000818:Animals; D001522:Behavior, Animal; D005260:Female; D008297:Male; D054712:Salinity; D012965:Sodium Chloride / Q000378:metabolism*; D013045:Species Specificity; D013696:Temperature
chemical_list: D012965:Sodium Chloride