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 …

Focusing on the most critical conservation priorities to prevent extinctions risks missing
declines of lower priority taxa that may become tomorrow's emergency. Sawfishes (5 …

Abstract Knowledge of the feeding ecology and trophic interactions of marine species is
essential to understanding food web dynamics and developing ecosystem-based …

Batoid (rays and skates) populations are declining worldwide, with unknown ecological
consequences due to lacking consolidated data on the trophic ecology of these species …

The aim of this study was to determine whether juvenile scalloped hammerhead sharks
(Sphyrna lewini) use the south-eastern Gulf of California as a nursery and feeding area. This …

Occupying the upper levels of trophic webs and thus regulating prey at lower levels, sharks
play an important role in the trophic structure and energy dynamics of marine ecosystems. In …

The boreoatlantic gonate squid (Gonatus fabricii) represents important prey for top predators—
such as marine mammals, seabirds and fish—and is also an efficient predator of …

Feeding studies, since traditional stomach content analysis to stable isotopes analyses,
provides insights into the trophic relationship among the apex predators and the ecosystems …

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

The trophic ecology of the pelagic thresher shark (Alopias pelagicus) was analysed using
stomach contents and carbon (δ13C) and nitrogen (δ15N) stable isotope analysis. The …