title: Avoidance of copper and zinc by rainbow trout Oncorhynchus mykiss pre-exposed to copper.
abstract: Laboratory tests were conducted on 1-year-old rainbow trout Oncorhynchus mykiss in a counter-current flow, steep-gradient chamber to evaluate their ability to detect and avoid copper and zinc at concentrations of 0.1 mg Cu/L and 1 mg Zn/L, respectively, after 10-day pre-exposure to five copper sublethal concentrations ranging from 0.1 to 0.5 mg Cu/L and after 10-day re-acclimation period in clean water. Avoidance response intensity in affected fish significantly decreased with increase in pre-exposure Cu concentration. The strength of avoidance response to Cu and Zn test solutions in pre-exposed fish after re-acclimation gradually increased in a concentration-dependent order.
authors: Laboratory of Hydrobiont Ecology and Physiology, Institute of Ecology of Nature Research Centre, Akademijos 2, 08412, Vilnius-21, Lithuania. Gintaras.Svecevicius@takas.lt
authors: Gintaras
authors: G
authors: Svecevičius
mesh_terms: D000222:Adaptation, Physiological; D000818:Animals; D001362:Avoidance Learning / Q000502:physiology*; D003300:Copper / Q000633:toxicity*; D004305:Dose-Response Relationship, Drug; D017686:Oncorhynchus mykiss / Q000502:physiology*; D014874:Water Pollutants, Chemical / Q000633:toxicity*; D015032:Zinc / Q000633:toxicity*
chemical_list: D014874:Water Pollutants, Chemical; D003300:Copper; D015032:Zinc