98 research outputs found
Effects of temperature in juvenile seabass (Dicentrarchus labrax L.) biomarker responses and behaviour: implications for environmental monitoring
The effects of temperature on European seabass
(Dicentrarchus labrax L.) juveniles were investigated using
a 30-day bioassay carried out at 18 and 25 °C in laboratory
conditions. A multiparameter approach was applied including
fish swimming velocity and several biochemical parameters
involved in important physiological functions. Fish exposed for
four weeks to 25 °C showed a decreased swimming capacity,
concomitant with increased oxidative stress (increased catalase
and glutathione peroxidase activities) and damage (increased
lipid peroxidation levels), increased activity of an enzyme
involved in energy production through the aerobic pathway
(isocitrate dehydrogenase) and increased activities of brain and
muscle cholinesterases (neurotransmission) compared to fish
kept at 18 °C. Globally, these findings indicate that basic
functions, essential for juvenile seabass surviving and well
performing in the wild, such as predation, predator avoidance,
neurofunction and ability to face chemical stress may be compromised
with increasing water temperature. This may be of
particular concern if D. labrax recruitment phase in northwest
European estuaries and coastal areas happens gradually inmore
warm environments as a consequence of global warming.
Considering that the selected endpoints are generally applied
in monitoring studies with different species, these findings also
highlight the need of more research, including interdisciplinary
and multiparameter approaches, on the impacts of temperature
on marine species, and stress the importance of considering
scenarios of temperature increase in environmental monitoring
and in marine ecological risk assessment
Pedagogical possibilities in culturally diverse educational contexts: Theory and practice of inclusive education in the Netherlands
Nongenomic effects of estrogen mediate the dose-related myocardial oxidative stress and dysfunction caused by acute ethanol in female rats
Cadmium and nickel co‐exposure exacerbates genotoxicity and not oxido‐inflammatory stress in liver and kidney of rats: Protective role of omega‐3 fatty acid
Biochemical alterations in diclofenac-treated rats: Effect of selenium on oxidative stress, inflammation, and hematological changes
Gallic acid and omega‐3 fatty acids mitigate epididymal and testicular toxicity in manganese‐treated rats
Quercetin Protects Liver Cells and Mitochondria Against Doxorubicin Induced Oxidative Stress in Albinos' Rats
Cloning of the two pyruvate kinase isoenzyme structural genes from Escherichia coli: the relative roles of these enzymes in pyruvate biosynthesis
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