Spatiotemporal trends of heavy metal concentrations in fish of the River Morava (Danube basin)

0349421 - ÚBO 2011 RIV US eng J - Journal Article
Valová, Zdenka - Jurajda, Pavel - Janáč, Michal - Bernardová, I. - Hudcová, H.
Spatiotemporal trends of heavy metal concentrations in fish of the River Morava (Danube basin).
Journal of Environmental Science and Health Part A-Toxic/Hazardous Substances & Environmental Engineering. Roč. 45, č. 14 (2010), s. 1892-1899. ISSN 1093-4529. E-ISSN 1532-4117
R&D Projects: GA MŠMT LC522
Institutional research plan: CEZ:AV0Z60930519
Keywords : mercury * cadmium * lead * contamination * River Morava * fish muscle
Subject RIV: EH - Ecology, Behaviour
Impact factor: 1.107, year: 2010

The aim of this study was to assess mercury (Hg), cadmium (Cd) and lead (Pb) contamination in muscle tissue of fishes over the longitudinal profile of the River Morava (Czech Republic, Danube basin) and to detect any temporal trends over the past 18 years. Fish samples were collected in 1992, 1998, 2000, 2003 and 2009 at 6 study sites situated just downstream of important pollution sources. Chub (Leuciscus cephalus L.) and brown trout (Salmo trutta m. fario L. were selected as indicator species. On average, the order of metal concentration in fish muscle was: Hg>Pb>Cd. No significant differences were found between sites along the longitudinal profile of the river. Significant differences were found, however, for the interannual comparison of cadmium and lead (but not mercury) at different sites (P < 0.05). A catastrophic flood in 1997 resulted in an increase in metal concentrations, especially cadmium and lead, in the following 1998 season.
Permanent Link: http://hdl.handle.net/11104/0189667