Dieta de la raya bruja Rostroraja velezi (Rajiformes: Rajidae) frente a la región Piura, Perú

Pamela Molina-Salgado, Joanna Alfaro-Shigueto, Adriana González-Pestana

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

1 Cita (Scopus)

Resumen

Batoids are among the least studied group of vertebrates and one of the most vulnerable to fishing. The rasptail skate, Rostroraja velezi, is a bycatch species in northern Peru for which there are no studies on its diet. This research aims to document the diet of R. velezi on the northern Peruvian coast and to determine if there are sex-based differences in the diet. A total of 74 R. velezi stomachs were collected, 59 of which had stomach contents. The cumulative prey curve showed reliability in the number of samples collected. According to the prey-specific index of relative importance, diet was dominated by Acanthephyra sp. (31%), other unidentified Caridea (15%), and unidentified teleosts (17%). A low significant difference in diet between sexes was found (R = 0.21, P < 0.01). The trophic position of R. velezi was 3.9 ± 0.7. This species displays bentopelagic feeding behavior and it is a secondary predator in northern Peru.

Título traducido de la contribuciónDiet of the rasptail skate, rostroraja velezi (Rajiformes: Rajidae), off piura, peru
Idioma originalEspañol
Páginas (desde-hasta)127-138
Número de páginas12
PublicaciónCiencias Marinas
Volumen47
N.º2
DOI
EstadoPublicada - 2 jun. 2021

Palabras clave

  • Elasmobranchii
  • Feeding habits
  • Gillnets
  • Mesopredator
  • Trophic ecology

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