Seasonal variations of metal concentrations in periphyton and taxonomic composition of the algal community at a Yenisei River littoral site


Тип публикации: статья из журнала

Год издания: 2010

Идентификатор DOI: 10.2478/s11535-009-0060-y

Ключевые слова: Heavy metals, Periphyton, Seasonal dynamics, algae, Chlorophyta, Cyanobacteria, Ulothrix zonata

Аннотация: The concentrations of metals K, Na, Ca, Mg, Fe, Mn, Zn, Cu, Ni, Pb, Co and Cr, in the water and periphyton (epilithic algal communities) were studied at a site in the middle stream of the Yenisei River (Siberia, Russia) during three years using monthly sampling frequencies. Despite considerable seasonal variations in aquatic concenПоказать полностьюtrations of some metals, there was no correlation between metal contents in the water and in periphyton. Seasonal concentration variations of some metals in periphyton were related to the species (taxonomic) composition of periphytic microalgae and cyanobacteria. Enhanced levels of Ni and Co in periphyton in late autumn, winter, and early spring were likely caused by the predominance of cyanobacteria in the periphytic community, and annual maximum levels of K in periphyton in late spring and early summer were attributed to the domination of Chlorophyta, primarily Ulothrix zonata.

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Выпуск журнала: Vol. 5, Is. 1

Номера страниц: 125-134

ISSN журнала: 1895104X

Место издания: WARSAW 41

Издатель: VERSITA