Preliminary analysis of the feeding habits of batoids from the genera Mobula and Myliobatis in Northern Peru

• Autores: Javier Jesús Coasaca-Céspedes, Eduardo Segura, Rebeca Montero-Taboada, Adriana Gonzalez-Pestana, Eliana Alfaro-Córdova, Joanna Alfaro-Shigueto, Jeffrey C. Mangel
• Localización: Revista de biología marina y oceanografía, ISSN 0718-1957, ISSN-e 0717-3326, Vol. 53, Nº. 3, 2018, págs. 367-374
• Idioma: inglés
• Títulos paralelos:
  • Análisis preliminar de los hábitos alimentarios de batoideos pertenecientes a los géneros Mobula y Myliobatis en el Norte de Perú
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• Resumen

  • Abstract: This study provides baseline information on the feeding habits of five batoid species from the genera Mobula and Myliobatis sampled from the small-scale driftnet fishery in northern Peru. The diets of Mobula mobular, Mobula munkiana and Mobula thurstoni consisted mainly of euphausiids. Dietary niche breadth indicated a pelagic feeding behaviour of a specialist and a trophic level of a secondary predator for both M. mobular and M. munkiana. In contrast, Myliobatis chilensis and Myliobatis peruvianus consumed mostly gastropods and crustaceans. Dietary niche breadth indicated a feeding behaviour of a benthic specialist and a trophic level of a secondary predator for Myliobatis chilensis.