Resumen de Preliminary analysis of the feeding habits of batoids from the genera Mobula and Myliobatis in Northern Peru
Javier Jesús Coasaca-Céspedes, Eduardo Segura, Rebeca Montero-Taboada, Adriana Gonzalez-Pestana, Eliana Alfaro-Córdova, Joanna Alfaro-Shigueto, Jeffrey C. Mangel
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.
