Among the most common statements made in studies of elasmobranch ecology is
something to the effect that “sharks play an important role in marine ecosystems.” Although …

Rays (superorder Batoidea) are the most diverse group of elasmobranchs, and many are
threatened with extinction. However, there remain areas where research on the ecology of …

Nursery areas are crucial for many elasmobranch species, providing benefits that increase
fitness and survival. Shark nurseries are well studied and our knowledge of their function …

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 …

Extant batoid species are grouped into 20 families and six orders that contain at least 513
species (McEachran and Dunn 1998; McEachran and Fechhelm 1998). The Rajidae is the …

Reference is made to 34 batoid species belonging to the Torpedinidae, Narcinidae,
Rhinobatidae, Rajidae and Dasyatidae families that inhabit shelf waters (8-200 m depth) of …

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 …

Knowing how the diversity of sharks, rays and chimaeras (Chondrichthyes) is distributed
helps us to design strategies to conserve these highly-vulnerable predators and their …

Aim To explore the influence of an emerging infectious disease (EID) affecting a prey
species on the spatial patterns and temporal shifts in the diet of a predator over a large …

The feeding ecology of five elasmobranch species was studied on the southern coast of Rio
de Janeiro, southwestern Atlantic Ocean. The specimens were caught with a trawl or bottom …