IIMYC   23581
INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS
Unidad Ejecutora - UE
artículos
Título:
Hepatic and renal metallothionein concentrations in Commerson's dolphins (Cephalorhynchus commersonii) from Tierra del Fuego, South Atlantic Ocean
Autor/es:
IRIS CÁCERES-SÁEZ; NATALIA A. DELLABIANCA; H. LUIS CAPPOZZO; PAULA POLIZZI; BELEN ROMERO; SERGIO RIBEIRO GUEVARA; R. NATALIE P. GOODALL; MARCELA GERPE
Revista:
MARINE POLLUTION BULLETIN
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2016 vol. 108 p. 263 - 267
ISSN:
0025-326X
Resumen:
The Commerson´s dolphin is the most common endemic odontocete of subantarctic waters of Tierra del Fuego,Argentina incidentally caught in fishing nets. The species is classified as ?Data Deficient? by the IUCN.Metallothioneins (MTs) are considered as suitable biomarkers for health and environmental monitoring. Theaims of the study were to assess MT concentrations in the liver and kidney of bycaught specimens. Moreover,correlations with Zn, Se, Cd, Ag and Hg, and the molar ratios of MT:metals were estimated to evaluate if thereis an indication of their respective protective role against metal toxicity in tissues. Hepatic and renalMT concentrationswere similar, ranging from11.6 to 29.1 nmol·g−1WW, and Kidney/Liver ratios ranging from0.73 to 1.93corresponded to normal ranges. Results suggest thatMTs are related to physiological ranges for the species. Thisinformation constitutes the firstMT report on Commerson´s dolphins and possibly considered as baseline for species´conservation.