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2003 | 2 | 3-14

Article title

Effect of different light conditions on cyanobacteria and algal communities in Tatra Mts stream (Pland)

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EN

Abstracts

EN
Different light conditions at the open and shaded sites caused by marginal vegetation affected the structure of Cyanobacteria and algae communities, but had no effect on chlorophyll a content. In the open area Hydrurus foetidus (Villars) Trevisan, Homoeothrix janthina (Bornet et Flahault) Starmach, and diatoms (mainly Achnanthes minutissima Kutz. together with A. biasolettiana Grun. and species from the Gomphonema genus ) were the most numerous. In shadow the abundance of Hydrurus foetidus drastically decreased, whereas the diatom biomass index, Achnanthes minutissima and A. biasolettiana showed a tendency to reduce their number. On the contrary, the abundance of green algae and Cocconeis placentula Ehr. var. euglypta Ehr. increased. Chlorophyll a contents of both sites obtaining the highest values in summer - autumn and the lowest in the winter - spring seasons.

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ARTICLE

Publication order reference

B.Kawecka, Karol Starmach Institute of Freshwater Biology, Polish Academy of Sciences, Slawkowska 17, 31-016 Krakow, Poland

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bwmeta1.element.element-from-psjc-506bf0b5-cc9a-342a-9919-a07385e0242e
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