The sagitta otoliths are sound transducers that play an important role in the hearing of fishes.
The shape of these structures is known to be affected by a number of genetic and …

Abstract In northern Rio de Janeiro (21 18'S-22 25'S), Brazil, gillnets are responsible for the
by-catch of a number of small cetaceans. Franciscanas (Pontoporia blainvillei) and marine …

The present study raised the hypothesis that the trophic status in a tropical coastal food web
from southeastern Brazil can be measured by the relation between total mercury (THg) and …

Dolphins are good bioindicators of the contamination status of marine ecosystems, since
their dietary and habitat plasticity in both coastal and offshore ecotypes provide information …

Organochlorine compounds are highly persistent in the environment, causing
bioaccumulation and biomagnification through the marine food chain. To verify the …

Abstract The local knowledge of human populations about the natural world has been
addressed through ethnobiological studies, especially concerning resources uses and their …

The Magellanic Penguin Spheniscus magellanicus is widely distributed along the southern
coast of South America. On the Atlantic coast, the species breeds from Peninsula Valdez (42 …

This study describes the diet and assesses potential overlap in the feeding habits of
Trichiurus lepturus Linnaeus, 1758 and Pontoporia blainvilleiGervais & D'Orbigny, 1844 in …

The increase in the research of cetacean surveys on the Brazilian coast has brought new
data on the distribution of species never reported before. The present work reviews the …

Diet analysis allows exploring how coastal dolphins interact with the environment and their
role in the marine food webs. We studied the diet and feeding ecology of the Guiana …