Diet composition of franciscana dolphin Pontoporia blainvillei from southern Buenos Aires, Argentina and its interaction with fisheries
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| Format: | Artículo científico |
| Language: | es |
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Universidad de Valparaíso
2014
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| author | María Natalia Paso-Viola |
| author_facet | María Natalia Paso-Viola |
| contents | Diet composition of franciscana dolphin Pontoporia blainvillei from southern Buenos Aires, Argentina and its interaction with fisheries María Natalia Paso-Viola Pablo Denuncio María Fernanda Negri Diego Rodríguez Ricardo Bastida Humberto Luis Cappozzo Ciencias de la Tierra fisheries Prey species southern Buenos Aires Pontoporia blainvillei The present study provides information about the diet composition of franciscana dolphin, Pontoporia blainvillei, from southern Buenos Aires coast, Argentina. From 2003 to 2011 we collected 66 franciscana dolphins that were incidentally entangled in artisanal fishing nets. We analyzed the stomach contents and estimated the prey size in order to evaluate the diet composition and the overlapping with fisheries. We identified 11 prey species in the stomach contents; only two of them were important in the diet, the striped weakfish, Cynoscion guatucupa, and the squid, Loligo sanpaulensis. Almost all the prey found in the diet of franciscana dolphins are of commercial interest. The overlapping of target species and prey that are subject to overfishing could enhance the vulnerability of franciscana by reducing food availability. 2014 artículo científico 0717-3326 https://www.redalyc.org/articulo.oa?id=47931776019 es http://www.redalyc.org/revista.oa?id=479 Revista de Biología Marina y Oceanografía application/pdf Universidad de Valparaíso Revista de Biología Marina y Oceanografía (Chile) Num.2 Vol.49 |
| format | Artículo científico |
| id | redalyc_47931776019 |
| institution | Redalyc |
| language | es |
| publishDate | 2014 |
| publisher | Universidad de Valparaíso |
| spellingShingle | Diet composition of franciscana dolphin Pontoporia blainvillei from southern Buenos Aires, Argentina and its interaction with fisheries María Natalia Paso-Viola Ciencias de la Tierra fisheries Prey species southern Buenos Aires Pontoporia blainvillei Diet composition of franciscana dolphin Pontoporia blainvillei from southern Buenos Aires, Argentina and its interaction with fisheries María Natalia Paso-Viola Pablo Denuncio María Fernanda Negri Diego Rodríguez Ricardo Bastida Humberto Luis Cappozzo Ciencias de la Tierra fisheries Prey species southern Buenos Aires Pontoporia blainvillei The present study provides information about the diet composition of franciscana dolphin, Pontoporia blainvillei, from southern Buenos Aires coast, Argentina. From 2003 to 2011 we collected 66 franciscana dolphins that were incidentally entangled in artisanal fishing nets. We analyzed the stomach contents and estimated the prey size in order to evaluate the diet composition and the overlapping with fisheries. We identified 11 prey species in the stomach contents; only two of them were important in the diet, the striped weakfish, Cynoscion guatucupa, and the squid, Loligo sanpaulensis. Almost all the prey found in the diet of franciscana dolphins are of commercial interest. The overlapping of target species and prey that are subject to overfishing could enhance the vulnerability of franciscana by reducing food availability. 2014 artículo científico 0717-3326 https://www.redalyc.org/articulo.oa?id=47931776019 es http://www.redalyc.org/revista.oa?id=479 Revista de Biología Marina y Oceanografía application/pdf Universidad de Valparaíso Revista de Biología Marina y Oceanografía (Chile) Num.2 Vol.49 |
| title | Diet composition of franciscana dolphin Pontoporia blainvillei from southern Buenos Aires, Argentina and its interaction with fisheries |
| topic | Ciencias de la Tierra fisheries Prey species southern Buenos Aires Pontoporia blainvillei |
| url | https://www.redalyc.org/articulo.oa?id=47931776019 |