Seven species of the genus Trichodina Ehrenberg, 1838 were identified during a sampling programme of twenty freshwater fish species from approximately sixty sites in Scotland, England and Wales. Species found include: Trichodina acuta Lom, 1961 from Cyprinus carpio L., Carassius auratus L., Oncorhynchus mykiss (Walbaum), Salmo trutta L. and Phoxinus phoxinus L.; Trichodina domerguei Wallengren,...

the objective of the study was to investigate pollution sources in the Vilnia river and evaluate the toxicity of sewage, contamination of the Vilnia river water and bottom sediments, using a complex of biological methods. toxicity was assessed by use of various indices of test-organisms: seed germination and root growth in Lepidium sativum l., and mortality and physiological indices in early on...

Transformation of earth's ecosystems by anthropogenic climate change is predicted for the 21st century. In many regions, the associated increase in environmental temperatures and reduced precipitation will have direct effects on the physiological performance of terrestrial and aquatic ectotherms and have already threatened fish biodiversity and important fisheries. The threat of elevated enviro...

copper is a very common element in water resources. for this reason, concerns about the risks and consequences of this element in water contamination are arising. the purpose of this study was to investigate the effects of water-born cuo (copper (ii) oxide) on the rainbow trout, oncorhynchus mykiss gill tissue to establish a suitable biomarker for copper in water resources. samples with 18±3g b...

aloe vera has been used worldwide in pharmaceutical, food and cosmetic industries due to the plethora of biological activities of its constituents. this study was done to evaluate the effects of dietary aloe vera on growth and lipid peroxidation in rainbow trout (oncorhynchus mykiss). a total number of 480 o. mykiss (mean weight 9.50 ± 0.85 g) were randomized into four experimental groups inclu...

Propofol, 2,6-diisopropylphenol, seems to be a good candidate as a fish anaesthetic, however, no study regarding propofol influence on fish has yet been reported. The aim of this study was to examine propofol pharmacokinetics in rainbow trout (Oncorhynchus mykiss) following bath exposure. Fish (n = 100) were exposed to an aqueous propofol bath at 12°C and 17°C; propofol concentration in the bat...