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Dry weight and calcium carbonate encrustation of two morphologically different Chara species: a comparative study from different lakes Cover

Dry weight and calcium carbonate encrustation of two morphologically different Chara species: a comparative study from different lakes

Open Access
|Sep 2016

Abstract

Two charophyte species (Chara tomentosa Thulli. 1799 and Chara globularis L. 1753) were studied to assess their biomass and CaCO3 production in seven hard-water lakes in Western Poland. In each lake, samples of ten individuals from three study sites were collected for dry weight (DW) and calcium carbonate content (% CaCO3) analyses. Additionally, physicochemical parameters of water collected from the above sampling sites were analyzed.

No significant differences were found between the study sites in each lake for any of the analyzed parameters. In all the lakes, DW of C. tomentosa (0.60 ± 0.23 g indiv.-1) was significantly higher and more differentiated than DW of C. globularis (0.11 ± 0.08 g indiv.-1), suggesting species-specificity. The CaCO3 content in DW for C. tomentosa was higher (58.8-70.9%) than in C. globularis (50.1-68.3%), however, it did not reflect the DW differentiation, suggesting lake-specificity. The physicochemical properties of water revealed clear lake-to-lake differentiation. Different correlations between dry weight and calcium carbonate content and lake characteristics were found for each species. The results showed that DW and % CaCO3 are closely related to habitat conditions and different factors may influence the individual biomass of each species.

DOI: https://doi.org/10.1515/ohs-2016-0034 | Journal eISSN: 1897-3191 | Journal ISSN: 1730-413X
Language: English
Page range: 377 - 387
Submitted on: Oct 27, 2015
Accepted on: Feb 22, 2016
Published on: Sep 22, 2016
Published by: University of Gdańsk
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2016 Andrzej Pukacz, Mariusz Pełechaty, Marcin Frankowski, Eugeniusz Pronin, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.