The effects of ciprofloxacin on early life stages of common carp (Cyprinus carpio).

The authors performed a toxicity test with ciprofloxacin in fertilized eggs of common carp according to guideline 210 of the Organisation for Economic Co-operation and Development. The tested concentrations were 1 μg L(-1) , 100 μg L(-1) , 500 μg L(-1) , 1000 μg L(-1) , and 3000 μg L(-1) . Accelerated hatching was found in all groups exposed to ciprofloxacin, but significant growth reduction was found only in the group exposed to the highest concentration (3000 μg L(-1) ).

Effects of subchronic exposure of diclofenac on growth, histopathological changes, and oxidative stress in zebrafish (Danio rerio).

The aim of this study was to investigate effects of subchronic exposure to sublethal levels of diclofenac on growth, oxidative stress, and histopathological changes in Danio rerio. The juvenile growth tests were performed on Danio rerio according to OECD method number 215. Fish at the age of 20 days were exposed to the diclofenac environmental concentration commonly detected in the Czech rivers (0.

The effects of atrazine exposure on early life stages of common carp (Cyprinus carpio).

Objectives: Atrazine and its chloro-s-triazine metabolites are found in surface water and groundwater of the Czech Republic, although their use has been banned since 2005. The objective of the study was to determine the toxic effects of atrazine at an environmentally relevant concentration of atrazine, 0.3 μg.

The effects of diclofenac on early life stages of common carp (Cyprinus carpio).

Diclofenac residues have been found in surface water, and thus could present a potential risk to aquatic species. The aim of this study was to assess the impact of diclofenac on the mortality, growth, and development of fish, as well as the impact of the drug on histological changes and selected parameters of oxidative stress in the fish. Subchronic toxic effects of diclofenac at concentrations of 0.

Oxidative stress responses in zebrafish Danio rerio after subchronic exposure to atrazine.

Atrazine is one of the most used pesticides all over the world and it is frequently detected in surface water. The aim of this study was to investigate if zebrafish exposure to atrazine could induce oxidative stress and changes in detoxifying system. Juvenile fish were exposed to sublethal concentrations of 0.

Oxidative stress parameters in early developmental stages of common carp (Cyprinus carpio L.) after subchronic exposure to terbuthylazine and metribuzin.

Objectives: This work assessed the subchronic effects of the triazine compounds terbuthylazine and metribuzin on embryo-larval stages of common carp (Cyprinus carpio L.) using biotransformation enzyme and selected oxidative stress parameters.

Design: Early developmental stages of fish, from embryo to larvae, were exposed to terbuthylazine at concentrations of 0.

The effects of subchronic exposure to terbuthylazine on zebrafish.

Objectives: Terbuthylazine belongs to the group of symmetrical triazine herbicides used extensively in agriculture and non-agricultural sites, primarily to control broadleaf and some grassy weeds that have become ubiquitous contaminants of the environment. The aim of this study was to assess the impact of terbuthylazine in surface waters on fish under experimental conditions. The effects of subchronic exposure to terbuthylazine on fish growth and the development of histopathological changes in selected organs (gill, kidney, liver), and on the activity of some biochemical parameters - glutathione S-transferase (GST), glutathione reductase (GR) and glutathione peroxidase (GPx) and on the concentration of thiobarbituric acid reactive substances (TBARS) in Danio rerio were investigated during a 28 day toxicity test.

Acute toxicity of acetylsalicylic acid to juvenile and embryonic stages of Danio rerio.

Objectives: The aim of this study was to compare the acute toxicity of acetylsalicylic acid to embryonic and juvenile stages of aquarium fish - zebrafish (Danio rerio), oxidative stress parameters and detoxifying enzyme.

Methods: Tests were performed according to OECD No. 203 (Fish, acute toxicity test) and OECD No.

Effect of four selected carrier solvents on embryonal stages of Danio rerio.

Objectives: The aim of this study was to determine the effects of 96 hour exposure to selected solvents on the embryonic stages of zebrafish (Danio rerio). We investigated mortality and various types of changes which appeared (oedema, tail and eye defects, weak pigmentation, and deformation of the body). Based on the results, values of NOEC and LOEC for embryos of D.

The effects of subchronic exposure to metribuzin on Danio rerio.

The aim of this study was to assess the impact of metribuzin in surface waters on fish under experimental conditions. The effects of subchronic exposure to metribuzin on fish growth and the development of histopathological changes in selected organs (gill, kidney, liver) and on activity of some biochemical markers (CYP450, EROD) in Danio rerio were investigated during a 28-day toxicity test. Juvenile growth tests were performed on D.

The effects of subchronic exposure to terbuthylazine on early developmental stages of common carp.

The aim of this study was to assess the impact of terbuthylazine in surface waters on fish under experimental conditions. Subchronic toxic effects on embryos and larvae of common carp (Cyprinus carpio) were investigated during a 30-day toxicity test. The exposure to terbuthylazin showed no effect on mortality, but significant differences (P < 0.