Articles

Title:	Qualitative and quantitative changes of blue-green algae in response to physicochemical water parameters in the urban lake Jeziorak Mały
Authors:	Zębek Elżbieta
Abstract:	The study was conducted on net phytoplankton in the urban Lake Jeziorak Mały (Masurian Lakeland) in 1998. The blue-green algae community was dominated by the species - Planktolyngbya brevicellularis, Limnothrix redekei, and Aphanizomenon gracile. The relationships between selected physicochemical water parameters and the numbers of blue-green algae were analyzed. The correlation coefficients of water temperature and blue-green alga abundance were statistically significant, while those of electrolytic conductivity and alga were negative. There was no correlation between the orthophosphate concentration and the blue-green alga count. Increases in the numbers of Planktolyngbya brevicellularis were observed in the widest temperature range (16⁰C-26⁰C), whereas Limnothrix redekei developed in a temperature range of 19⁰C-22⁰C, and Aphanizomenon gracile in a range of 20⁰C-22⁰C.
DOI:
Type of paper:	Original research paper
Pages:	39 to 56
Cytation:	Zębek E., 2005, Qualitative and quantitative changes of blue-green algae in response to physicochemical water parameters in the urban lake Jeziorak Mały, Ocean. Hydrob. Studies, 34(1): 39-56
Keywords:	lake, blue-green algae, water temperature, electrolytic conductivity of water, orthophosphates
Year:	2005
Category:
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