Artículo
Feeding ecology of the apron ray Discopyge tschudii (Elasmobranchii, Narcinidae) in San Jorge Gulf, Patagonia, Argentina
Fecha de publicación:
08/2016
Editorial:
Cambridge University Press
Revista:
Journal of the Marine Biological Association of the United Kingdom
ISSN:
0025-3154
e-ISSN:
1469-7769
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The study of the feeding habits of elasmobranch populations should help to elucidate the ecological role of these fishes in the marine ecosystem. Feeding habits of the apron ray, Discopyge tschudii from San Jorge Gulf were investigated. An evaluation of whether the diet of D. tschudii changes with body size, seasons, maturity stage and sex was performed using a multiple-hypothesis modelling approach. Discopyge tschudii preyed mainly on polychaetes. The consumption of polychaetes was higher in males. Also, amphipods and siphons of clams were preyed more heavily in the cold season and Munida gregaria in the warm season. Stomatopods were consumed more with increasing body size. All prey categories were independent of maturity stage. We concluded that D. tschudii is a benthic feeder.
Palabras clave:
Akaike'S Weight
,
Diet Variation
,
Glm
,
Magellanic Province
,
Predation
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IIMYC)
Articulos de INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS
Articulos de INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS
Citación
Spath, María Cecilia; Delpiani, Gabriela Elina; Figueroa, Daniel Enrique; Feeding ecology of the apron ray Discopyge tschudii (Elasmobranchii, Narcinidae) in San Jorge Gulf, Patagonia, Argentina; Cambridge University Press; Journal of the Marine Biological Association of the United Kingdom; 96; 5; 8-2016; 1093-1099
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