| Titre : | Effect of illegal harvest on apparent survival of Amazon River dolphins (Inia geoffrensis) |
| Auteurs : | Vanessa J. Mintzer, Auteur ; Anthony R. Martin, Auteur ; Vera M. F. da Silva, Auteur ; Andrew B. Barbour, Auteur ; Kai Lorenzen, Auteur ; Thomas K. Frazer, Auteur |
| Type de document : | Article |
| Dans : | Biological Conservation (158 FEB 2013) |
| Article en page(s) : | 280-286 |
| Langues: | Anglais |
| Résumé : | The Amazon River dolphin (Inia geoffrensis), or boto, is illegally harvested for use as bait in fisheries for the catfish Calophysus macropterus. To determine the effect of this harvest, we estimated apparent survival for a boto population in the central Brazilian Amazon where direct harvest is known to have occurred since 2000. For our analysis, we used capture and recapture/resighting data of 528 marked botos over a 17-year period (1994-2011). Time-dependent models estimated that apparent survival after the first reports of harvest (phi = 0.899; |



