The aims of the present study were to identify the trophic roles of shark and batoid species in
a tropical marine food web and to examine how ontogenetic dietary changes affect these …

Food partitioning between species is a common strategy for avoiding resource competition
which allows the coexistence of two or more species in the same place. In order to evaluate …

Reproductive aspects of the round ray Urotrygon rogersi were studied based on 2005
specimens obtained in the artisanal shrimp fishery operating on the Colombian Pacific …

Large sharks generally occupy the highest trophic levels and are important links in the
structuring of trophic networks. However, the decline of these predators has been observed …

Sexual, ontogenic and temporal effects in the diet of Dasyatis longa were evaluated to
determine feeding habits and trophic ecology. Numeric indices and the index of relative …

Diet composition of batoids on the continental shelf off Nayarit and Sinaloa, Mexico
Composición trófica de batoideos en la pl Page 1 Ciencias Marinas (2012), 38(2): 347–362 …

Although chondrichthyans are conspicuously present in shallow waters, many ecological
aspects of neritic species in the Humboldt Current System remain unknown. This study …

Rhinoptera steindachneri is a commercially important, medium-sized, pelagic migratory
batoid fish with benthic feeding habits. It has been considered a specialized predator that …

The diets of Neotrygon picta, Neotrygon kuhlii and Neotrygon annotata are described using
trophic level analysis, index of relative importance (IRI) and non‐metric multidimensional …

A total of 255 longnosed skate Dipturus oxyrinchus caught in Sardinian waters (central‐
western Mediterranean Sea), was analysed with respect to fish total length (LT), season and …