INVESTIGADORES
BOTTE Sandra Elizabeth
artículos
Título:
Metales pesados en el riñón del delfín franciscana, Pontoporia blainvillei (Cetacea: Pontoporiidae) y su relación con parámetros biológicos
Autor/es:
PANEBIANCO, M.V.; NEGRI, M.; BOTTÉ, S.E.; MARCOVECCHIO, J.E.; CAPPOZZO, H.L.
Revista:
LATIN AMERICAN JOURNAL OF AQUATIC RESEARCH
Editorial:
UNIV CATOLICA DE VALPARAISO
Referencias:
Lugar: Valparaíso; Año: 2011 vol. 39 p. 526 - 533
ISSN:
0718-560X
Resumen:
Heavy metal (Cd, Pb, Zn, Cu, Cr,Ni) concentrations were determined in the kidney tissue of the Franciscana dolphin, Pontoporia blainvillei, and the influence of ecological and biological parameters on the bioaccumulation of these elements was established. Samples from 38 specimens, collected between 2004 and 2010 off southern Buenos Aires, Argentina, were analyzed. Histological methods were used to determine both the age and sexual maturity of the animals. Heavy metal concentrations were measured by atomic absorption spectrophotometry. No significant differences were found by sex for Zn, Cu, and Cd. However, Cd levels differed between maturity stages and were positively related to length, body weight, and age. The Cd, Cu, and Zn levels reported here in were lower than those included in previous studies done off northern Buenos Aires and Uruguay.
