ACUMULACIÓN METALES PESADOS EN EL DELFÍN COMÚN, DELPHINUS DELPHIS, ARGENTINA.

GABRIEL MACHOVSKY CAPUSKA; GABRIELA VON HAEFTEN; DIEGO RODRIGUEZ; VICTOR MORENO; MARCELA GERPE

QUÍMICA Y TOXICOLOGÍA AMBIENTAL EN AMÉRICA LATINA, Libro SETAC

SETAC Press

Lugar: Buenos Aires; Año: 2008; p. 23 - 25

<!-- /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} @page Section1 {size:612.0pt 792.0pt; margin:70.85pt 3.0cm 70.85pt 3.0cm; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;} div.Section1 {page:Section1;} --> Liver, kidney and muscle of juveniles and adults of short-beaked common dolphins, Delphinus delphis, were analyzed for mercury, cadmium, copper and zinc. Highest concentration (2.8-40.9 µg/g) and burden (4.5-118.1 mg) of mercury was found in liver, and those for cadmium in kidney (5.2-17.2 µg/g; 19.4-65.4mg). Accumulation of both metals with age was observed in liver and kidney. Annual Accumulation Rates showed that age class II (involving organisms between 5 to 10 Growth Layer Groups of age and involucrate juveniles and incipient mature organisms) would be the principal contribution to the whole accumulation process. Statistical differences between sexes were not found. A tendency to biomagnificate mercury was observed.