15 documents found, page 1 of 2

Preliminary data on the ecotoxicity effects of the novel synthetic cathinone 3,...

Background: The use of synthetic cathinones (SC) for recreational purposes has become increasingly common among young individuals in recent years [1]. As a result, SC have been detected in aquatic environments even at low concentrations (between ng L‒1 to µg L‒1) [2] that can negatively impact freshwater vertebrates [3]. Since SC are designed to affect the nervous system, they could potentially cause unpredicta...

Jardins Botânicos Portugueses: Jardim Botânico da Universidade de Trás-os-Monte...

Sublethal ecotoxicity assays of an emergent psychoactive substance in Daphnia m...

Jardins botânicos portugueses: o antes e o depois de 2020

Jardins botânicos portugueses: o antes e o depois de 2020

Acoustic barriers as an acoustic deterrent for native potamodromous migratory f...

This study focused on the use of sound playbacks as acoustic deterrents to direct native potamodromous migratory species away from all kind of traps. The effects of two acoustic treatments, a repeated sine sweep up to 2 kHz (sweep-up stimulus) and an intermittent 140 Hz tone, were tested in three fish species native to Iberia: Salmo trutta, Pseudochondrostoma duriense and Luciobarbus bocagei. In contrast with S...

The Impact of Land Use Transformations on Zooplankton Communities in a Small Mo...

Transformation of the river catchment and the river bed cause significant changes in the functioning of river ecosystems. The main effects of anthropogenic transformations are hydrological changes, such as lower current velocity or an increase of nutrient content, and higher temperature. Zooplankton reacts rapidly to the new environmental conditions in rivers, increasing its richness and abundance. We tried to ...

Book of Abstracts of the Xth International Symposium on Wild Fauna(ISoWiF 2017)

Frequency of micronuclei and of other nuclear abnormalities in erythrocytes of ...

Fish are bioindicators of water pollution, and an increased rate of their erythrocyte nuclear morphological abnormalities (ENMAs)—and particularly of erythrocyte micronuclei (EMN)—is used as a genotoxicity biomarker. Despite the potential value of ENMAs andMN, there is scarce information about fish captured in Iberian estuaries. This is the case of the Portuguese estuaries of the Mondego, Douro and Ave, sufferi...

Oxidative stress responses and histological hepatic alterations in barbel, Barb...

Barbel (Barbus bocagei) a common species in Portuguese rivers was studied to assess the impact of water contamination on hepatic oxidative stress response, lipid peroxidation and histology. The Vizela River is a tributary of the Ave River, located in one of the most industrialized areas of Portugal. The oxidative stress biomarkers analyzed included superoxide dismutase, catalase, glutathione S-transferase, glut...