Feeding habits of thresher sharks Alopias sp. in northern Peru: Predators of Humboldt squid (Dosidicus gigas)

Adriana González-Pestana, Nicolas Acuña-Perales, Francisco Córdova, Javier Coasaca, Eliana Alfaro, Joanna Alfaro-Shigueto, Jeffrey C. Mangel

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

8 Citas (Scopus)

Resumen

The stomach contents of thresher sharks (Alopias spp.; 162-385 cm total length) were collected from five landing points in northern Peru during 2015. A total of 128 thresher sharks were sampled, with 38 individuals identified as Alopias pelagicus and 90 aggregated to the genus level Alopias sp. to prevent any misidentification. The diet comprised 13 and 10 prey taxa for Alopias sp. and A. pelagicus, respectively. Humboldt squid Dosidicus gigas dominated the diet of both groups, with only minor differences in the diet in relation to size classes and location. The diet of Alopias shows a high degree of specialization and the average trophic positions were high for both groups, A. pelagicus (4.4 ± 0.13) and Alopias sp. (4.5 ± 0.14).

Idioma originalInglés
Páginas (desde-hasta)695-702
Número de páginas8
PublicaciónJournal of the Marine Biological Association of the United Kingdom
Volumen99
N.º3
DOI
EstadoPublicada - 1 may. 2019

Huella

Profundice en los temas de investigación de 'Feeding habits of thresher sharks Alopias sp. in northern Peru: Predators of Humboldt squid (Dosidicus gigas)'. En conjunto forman una huella única.

Citar esto