<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Research on the diversity of thalli and mats built by freshwater <italic>Ulva flexuosa</italic>, as well as the impact of abiotic factors on the development and distribution of <italic>Ulva</italic> mats, was conducted from May to August 2013. The study describes the dynamics of “green tides” formation by <italic>U. flexuosa</italic>. The study assessed abiotic factors that may influence the colonization and the growth of <italic>Ulva</italic> populations in freshwater systems. The results are of major importance to the trade and industry sectors. In total, eleven environmental parameters were included in the analysis. The most important environmental parameters characterizing the <italic>Ulva</italic> sites are sodium chloride levels and conductivity. High values of pH inhibited the development of <italic>Ulva</italic>, leading to a lower percentage of mature thalli in the mats. The water depth was positively correlated with an increase in the density of thalli in the mats and the average thallus length. Significant differences were identified between the concentrations of nitrates under and outside the <italic>Ulva</italic> mats. Concentrations of nitrate under the <italic>Ulva</italic> thalli were always lower.</p>
</abstract>

Research on the diversity of thalli and mats built by freshwater Ulva flexuosa, as well as the impact of abiotic factors on the development and distribution of Ulva mats, was conducted from May to August 2013. The study describes the dynamics of “green tides” formation by U. flexuosa. The study assessed abiotic factors that may influence the colonization and the growth of Ulva populations in freshwater systems. The results are of major importance to the trade and industry sectors. In total, eleven environmental parameters were included in the analysis. The most important environmental parameters characterizing the Ulva sites are sodium chloride levels and conductivity. High values of pH inhibited the development of Ulva, leading to a lower percentage of mature thalli in the mats. The water depth was positively correlated with an increase in the density of thalli in the mats and the average thallus length. Significant differences were identified between the concentrations of nitrates under and outside the Ulva mats. Concentrations of nitrate under the Ulva thalli were always lower.

Ecological preferences of freshwater <italic>Ulva flexuosa</italic> (Ulvales; Ulvophyceae): development of macroalgal mats in a Tulce fishpond (Wielkopolska Region, Poland)

Oceanological and Hydrobiological Studies

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Ecological preferences of freshwater  (Ulvales; Ulvophyceae): development of macroalgal mats in a Tulce fishpond (Wielkopolska Region, Poland)

Research on the diversity of thalli and mats built by freshwater Ulva flexuosa, as well as the impact of abiotic factors on the development and distribution of...

Ecological preferences of freshwater Ulva flexuosa (Ulvales; Ulvophyceae): development of macroalgal mats in a Tulce fishpond (Wielkopolska Region, Poland)

Article Category: Original research paper

Published Online: Mar 10, 2016

Page range: 100 - 111

Received: Mar 26, 2015

Accepted: Jul 23, 2015

DOI: https://doi.org/10.1515/ohs-2016-0010

Keywords
Chlorophyta, environmental conditions, macroalgal mats,

© Faculty of Oceanography and Geography, University of Gdañsk, Poland. All rights reserved.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Ecological preferences of freshwater Ulva flexuosa (Ulvales; Ulvophyceae): development of macroalgal mats in a Tulce fishpond (Wielkopolska Region, Poland)

Article Category: Original research paper

Published Online: Mar 10, 2016

Page range: 100 - 111

Received: Mar 26, 2015

Accepted: Jul 23, 2015

DOI: https://doi.org/10.1515/ohs-2016-0010

KeywordsChlorophyta, environmental conditions, macroalgal mats,

© Faculty of Oceanography and Geography, University of Gdañsk, Poland. All rights reserved.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
Chlorophyta, environmental conditions, macroalgal mats,