The author compares 12 hierarchical models in the aim of estimating the abundance of fish in alpine streams by using removal sampling data collected at multiple locations. The most expanded model accounts for (i) variability of the abundance among locations, (ii) variability of the catchability among locations, and (iii) residual variability of the catchability among fish. Eleven model reductio...

The present study reports the results of virological survey in fish with an emphasis on the diseases included in the Czech National Legislation. Monitoring of fish both without symptoms and with a manifested disease was performed within this virological surveillance. Between January 1999 and December 2006, viral haemorrhagic septicaemia virus (VHSV), infectious haematopoetic necrosis virus (IHN...

The aim of the present study was to investigate the histopathological changes on the organs of the brown trout (Salmo trutta m. fario) inflicted by per oral cadmium and zinc poisoning in the 46week experimental period. The fish were kept in well-oxygenated freshwater basins which were purposely set for the experiment. During the investigation, we set up two experimental basins along with the co...

Nucleospora salmonis (Hedrick, Groff et Baxa, 1991), an intranuclear microsporidian parasite of marine and freshwater fish, causes diseases mainly in salmonid species. Losses have been reported in stocks of salmonid fish reared in the region of Auvergne (France). The cause of chronic mortalities in the local host species raised in aquaculture and destined for supplementation of the river system...

Chloramine-T is a widely used disinfectant for the treatment of gill diseases fish in freshwater and can be toxic to fish. Therefore, current study aimed examine safety this disinfecting product (as it has been attracting researchers’ attention applying aquatic animals) health using markers aerobic anaerobic capacity (i.e. lactate dehydrogenase activity) skeletal muscle cardiac tissues rainbow ...