title: Relationships and bioaccumulation of chemical elements in the Baikal seal (Phoca sibirica).
abstract: Concentrations of Al, Ba, Cd, Cu, Fe, Mn, Mo, Si, Sr, Zn, Ca, K, Mg, Na and P in the livers of Baikal seal, plankton, zoobenthos, and fish, constituting the food sources for the seals, were determined by ICP-MS and ICP-AES. The accumulation of elements in the liver of seals, affected by internal and external (environmental) factors, was assessed by multidimensional (ANOVA, FA) and correlation analyses. FA has enabled identification of abiotic and biotic factors responsible for the accumulation of elements in the livers of Baikal seals. Significant influence of sex and development stage of the seals analysed on hepatic concentrations of some elements was found. The observed differences in element concentrations between pups, males and females could be attributable to the reproductive cycle of this species. ANOVA showed differences in concentrations of Fe, Zn, Cu and Cd in seals from the three separate basins of the lake. BMFs suggest biomagnification of Fe and Zn in the fish-seal trophic link.
authors.affiliation: Department of Food Sciences, Medical University of Gdańsk, ul. Hallera 107, 80-416 Gdańsk, Poland.
authors.forename: Tomasz
authors.initials: T
authors.lastname: Ciesielski
authors.forename: Mikhail V
authors.initials: MV
authors.lastname: Pastukhov
authors.forename: Peter
authors.initials: P
authors.lastname: Fodor
authors.forename: Zsuzsanna
authors.initials: Z
authors.lastname: Bertenyi
authors.forename: Jacek
authors.initials: J
authors.lastname: Namieśnik
authors.forename: Piotr
authors.initials: P
authors.lastname: Szefer
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D001682:Biological Availability; D004781:Environmental Exposure; D004784:Environmental Monitoring / Q000379:methods; D005260:Female; D005399:Fishes; D020387:Food Chain; D005618:Fresh Water; D019015:Geologic Sediments; D008099:Liver; D008297:Male; D019216:Metals, Heavy / Q000032:analysis* / Q000493:pharmacokinetics; D046049:Phoca / Q000378:metabolism*; D010933:Plankton / Q000737:chemistry; D012800:Siberia; D014131:Trace Elements / Q000032:analysis* / Q000493:pharmacokinetics; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000493:pharmacokinetics; D015048:Zooplankton / Q000737:chemistry
chemical_list: D019216:Metals, Heavy; D014131:Trace Elements; D014874:Water Pollutants, Chemical