The animals' response may be a sign of ecosystem imbalance. Experiments performed on six beaches of Brazil’s Southeast Region showed that the mussels' activity intensifies when they are exposed to metallic contaminants in seawater.
International collaboration results in largest-ever inventory of Amazon fish fauna. Data will help estimate the risk of impacts related to the construction of dams and waterways as well as deforestation, mining and climate change.
An article published in Nature Communications shows that three species of electric eel exist, not just one as previously described, and that one of them produces an electric shock up to 860 volts. The researchers were funded by FAPESP, the Smithsonian and National Geographic.
Over half of the rays and skates caught in Brazil belong to protected species, a DNA barcoding study shows.
Discoveries by Brazilian and German researchers may facilitate early sexing of pirarucu (arapaima) and its reproduction in captivity while also paving the way for genetic improvement.
Discovery by Brazilian and US researchers could change the classification of two species, which appear more akin to jellyfish than was thought.
A study by the FAPESP-funded Research, Innovation and Dissemination Center shows that toxins produced by young female stingrays cause more pain, whereas toxins produced by adult stingrays cause tissue necrosis.
The decline in biodiversity is a direct result of human activity and represents a grave threat to human well-being according to the first global assessment of the state of nature.
Although artisanal mining has declined in the region, it continues to account for high levels of mercury in the largest tributary of the Amazon, according to a study supported by FAPESP’s SPRINT program.