Fine scale distribution constrains cadmium accumulation rates in two geographical groups of Franciscana dolphin from Argentina
- Polizzi, Paula Sabrina
- Chiodi Boudet, Leila Natalia
- Romero, María Belén
- Denuncio, Pablo Ezequiel
- Rodriguez, Diego Horacio
- Gerpe, Marcela Silvia
DOIAbstract
Franciscana dolphin is an endemic cetacean in the southwestern Atlantic Ocean and is classified as Vulnerable A3d by the International Union for Conservation of Nature. Cadmium accumulation was assessed in two geographic groups from Argentina; one inhabits the La Plata River estuary, a high anthropogenic impacted environment, and the other is distributed in marine coastal, with negligible pollution. Despite the environment, marine dolphins showed an increase of renal Cd concentrations since trophic independence; while in estuarine dolphins was from 6 years. This is associated with dietary Argentine anchovy which was absent in the diet of estuarine dolphins, being a trophic vector of cadmium in shelf waters of Argentina. Cluster analysis als...
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