vintage omega watches 1970 audemars piguet royal oak chronograph blue dial price swiss replica watches womens watches on sale old rolex watches price list replica watches uk tag heuer xcaz2011 rolex daytona 6263 big red uk replica watches navitimer world tag heuer grand carrera calibre 17 watch price in india replica watches uk patek philippe vintage tank watch heuer trackmate 1 5 fake watches

SOLAMAC - Sociedade Latino Americana de Especialistas em Mamíferos Aquáticos

Biblioteca virtual  -  Artigos dos membros da SOLAMAC

Plastic ingestion in Franciscana dolphins, Pontoporia blainvillei (Gervais and d'Orbigny, 1844), from Argentina
Denuncio, Pablo; Bastida, Ricardo; Dassis, Mariela; Giardino, Gisela; Gerpe, Marcela; Rodríguez, Diego; . Plastic ingestion in Franciscana dolphins, Pontoporia blainvillei (Gervais and d\'Orbigny, 1844), from Argentina. Marine Pollution Bulletin. 62 (8): 1836-1841. 2012.

Plastic debris (PD) ingestion was examined in 106 Franciscana dolphins (Pontoporia blainvillei) incidentally captured in artisanal fisheries of the northern coast of Argentina. Twenty-eight percent of the dolphins presented PD in their stomach, but no ulcerations or obstructions were recorded in the digestive tracts. PD ingestion was more frequent in estuarine (34.6%) than in marine (19.2%) environments, but the type of debris was similar. Packaging debris (cellophane, bags, and bands) was found in 64.3% of the dolphins, with a lesser proportion (35.7%) ingesting fishery gear fragments (monofilament lines, ropes, and nets) or of unknown sources (25.0%). PD ingestion correlated with ontogenetic changes in feeding regimes, reaching maximum values in recently weaned dolphins. Because a simultaneous increase in gillnet entanglement and the bioaccumulation of heavy metals take place at this stage, the first months after trophic independence should be considered as a key phase for the conservation of Franciscana dolphin stocks in northern Argentina.

- Link:

- E-mail:

<< Voltar