Abstract
In Lake Łuknajno submerged macrophytes occupied 50% of lake area and their mean biomass was 350 g dry weight m–2 in the 1993 year. Maximum biomass values of charophytes reached high levels above 1000 g dry weight m–2 (in a few samples). During the last 20 years changes in submerged macrophytes were mainly quantitative. In that period the area occupied by plants decreased twice, presumable by eutrophication. In 1993 Lake Łuknajno was still a Chara-type. Seven species of Characeae were recorded, Chara aculeolataand C. tomentosabeing the most abundant. The contribution of charophytes to total dry weight of all submerged macrophytes was 90%. At stations covered with Chara,phosphorus, nitrogen and chlorophyll concentrations were markedly lower than at stations devoid of plants.
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Królikowska, J. (1997). Eutrophication processes in a shallow, macrophyte-dominated lake — species differentiation, biomass and the distribution of submerged macrophytes in Lake Łuknajno (Poland). In: Kufel, L., Prejs, A., Rybak, J.I. (eds) Shallow Lakes ’95. Developments in Hydrobiology, vol 119. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5648-6_44
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DOI: https://doi.org/10.1007/978-94-011-5648-6_44
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