Preliminary analysis of the feeding habits of batoids from the genera Mobula and Myliobatis in northern Peru [Análisis preliminar de los hábitos alimentarios de batoideos pertenecientes a los géneros mobula y myliobatis en el norte de Perú]
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2018
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Universidad de Valparaiso
Resumen
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. © 2018, Universidad de Valparaiso. All rights reserved.