title: Baseline micronuclei and nuclear abnormalities frequencies in native fishes from the Paraná River (Argentina).
abstract: This work aims to establish baseline frequencies of micronuclei (MN) and nuclear abnormalities (NA) in native fish species collected in situ from the Paraná River. For this purpose, the micronucleus test was applied in peripheral blood erythrocytes from specimens obtained from samplings collected at two localities (Posadas and Candelaria, Misiones, Argentina) during the period 2007-2010. The results were statistically analyzed using the Kruskal Wallis test. Data from nine fish species were obtained, among which Steindachnerina brevipinna (Characiformes) revealed the highest baseline frequency of MN and NA, showing statistically significant differences with regard to the other analyzed species. These results are the first report of baseline MN and NA frequencies for native fish species studied and could be useful for future comparisons with data of fishes belonging to other environments.
authors: Departamento de Genética, Facultad de Ciencias Exactas, Químicas y Naturales ? FCEQyN, Universidad Nacional de Misiones, Posadas, Misiones, Argentina.
authors: G N A
authors: GN
authors: Furnus
authors: Departamento de Genética, Facultad de Ciencias Exactas, Químicas y Naturales ? FCEQyN, Universidad Nacional de Misiones, Posadas, Misiones, Argentina.
authors: J D
authors: JD
authors: Caffetti
authors: Departamento de Genética, Facultad de Ciencias Exactas, Químicas y Naturales ? FCEQyN, Universidad Nacional de Misiones, Posadas, Misiones, Argentina.
authors: E M
authors: EM
authors: García
authors: Departamento de Genética, Facultad de Ciencias Exactas, Químicas y Naturales ? FCEQyN, Universidad Nacional de Misiones, Posadas, Misiones, Argentina.
authors: M F
authors: MF
authors: Benítez
authors: Departamento de Genética, Facultad de Ciencias Exactas, Químicas y Naturales ? FCEQyN, Universidad Nacional de Misiones, Posadas, Misiones, Argentina.
authors: M C
authors: MC
authors: Pastori
authors: Departamento de Genética, Facultad de Ciencias Exactas, Químicas y Naturales ? FCEQyN, Universidad Nacional de Misiones, Posadas, Misiones, Argentina.
authors: A S
authors: AS
authors: Fenocchio
mesh_terms: D000818:Animals; D001118:Argentina; D002397:Catfishes / Q000145:classification / Q000235:genetics*; D002467:Cell Nucleus / Q000187:drug effects / Q000235:genetics*; D060125:Characiformes / Q000145:classification / Q000235:genetics*; D004784:Environmental Monitoring; D004912:Erythrocytes / Q000166:cytology* / Q000187:drug effects; D015162:Micronucleus Tests / Q000662:veterinary*; D010473:Perciformes / Q000145:classification / Q000235:genetics*; D045483:Rivers; D014874:Water Pollutants, Chemical / Q000633:toxicity
chemical_list: D014874:Water Pollutants, Chemical