title: Total mercury and mercury species in birds and fish in an aquatic ecosystem in the Czech Republic.
abstract: Total mercury and mercury species (methylmercury-MeHg, inorganic mercury--Hg(2+)) were determined in the aquatic ecosystem Záhlinice (Czech Republic). Four tissues (muscle, intestines, liver and kidney) of three bird species--cormorant, great crested grebe and Eurasian buzzard, muscle tissues of common carp, grass carp, northern pike, goldfish, common tench, perch and rudd, aquatic plants (reed mace and common reed), sediments and water were analysed. Relative contents of MeHg (of total Hg) were in the range from 71% to 94% and from 15% up to 62% in the muscle and intestines and in liver, respectively, for all birds. Statistically significant differences were found between contents of MeHg in liver tissues of young and adult cormorant populations (F(4.60)=56.71, P<10(-5)). Relative contents of MeHg in muscle tissues of fishes were in the range from 65.1% to 87.9% of total Hg.
authors.affiliation: Department of Chemistry and Biochemistry, Mendel University of Agriculture and Forestry, Zemedelská 1, CZ-613 00 Brno, Czech Republic.
authors.forename: Pavlína
authors.initials: P
authors.lastname: Houserová
authors.forename: Vlastimil
authors.initials: V
authors.lastname: Kubán
authors.forename: Stanislav
authors.initials: S
authors.lastname: Krácmar
authors.forename: Jiljí
authors.initials: J
authors.lastname: Sitko
mesh_terms: D000818:Animals; D001717:Birds / Q000378:metabolism*; D018153:Czech Republic; D017753:Ecosystem; D005399:Fishes / Q000378:metabolism*; D019015:Geologic Sediments; D007422:Intestines / Q000737:chemistry; D007668:Kidney / Q000737:chemistry; D008099:Liver / Q000737:chemistry; D008628:Mercury / Q000032:analysis*; D008767:Methylmercury Compounds / Q000032:analysis*; D010369:Pectoralis Muscles / Q000737:chemistry; D006109:Poaceae / Q000737:chemistry; D032401:Typhaceae / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D008767:Methylmercury Compounds; D014874:Water Pollutants, Chemical; D008628:Mercury