Articles

Title:	Effect of different light conditions on cyanobacteria and algal communities in Tatra Mts stream (Poland)
Authors:	Kawecka Barbara
Abstract:	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. 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 obtain the highest values in summer - autumn and the lowest in the winter - spring seasons.
DOI:
Type of paper:	Original research paper
Pages:	3 to 13
Cytation:	Kawecka B., 2003, Effect of different light conditions on cyanobacteria and algal communities in Tatra Mts stream (Poland), Ocean. Hydrob. Studies, 32(2): 3-13
Keywords:	Tatra Mts streams, cyanobacteria, sessile algae, ecology, light
Year:	2003
Category:
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