Abstract
ABSTRACT Concentrations of 12 trace elements (Hg, Cd, Be, Co, As, V, Pb, Cu, Ni, Zn, Ba, Mn) were determined for different organs of 6 dominant macrophytes of the Novosibirsk Reservoir (Phragmites australis (Cav.) Trin. ex Steud., Typha angustifolia L., Nymphoides peltata (S.G. Gmel) O. Kuntze, Potamogeton lucens L., Potamogeton perfoliatus L., Salvinia natans (L.) All.). This investigation showed: 1) concentrations of trace elements (excepting Mn) in roots and rootstocks were greater than in organs above the sediment surface, 2) maximum trace element concentrations were observed in Salvinia natansr, Nymphoides peltata and Potamogeton species accumulated lesser amounts than Salvinia natans; Phragmites australis and Typha angustifolia always showed the lowest concentrations of all elements in both above- and underground organs, and 3) because of their greater biomass, communities of Phragmites australis accounted for greater total amounts of trace elements than other macrophyte communities of Novosibirsk Reservoir. These communities contained 57% of Cd, 52% of As, 42% of Pb, 54% of Cu, 57% of Ni, 66% of Zn, 32% of Mn accumulated in the six studied macrophyte communities of Novosibirsk Reservoir.
Published Version
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