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Phytoplankton Sensitivity to Heavy Metals in Baltic Coastal Lakes

This study aimed to compare concentrations of chlorophyll-a between individual phytoplankton groups for four shallow Baltic coastal lakes, varying in type of connection with the sea. For two years, the research focused on quantifying the effects of abiotic factors—concentrations of heavy metals (Ba,...

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Autores principales: Szymańska-Walkiewicz, Monika, Glińska-Lewczuk, Katarzyna, Burandt, Paweł, Obolewski, Krystian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8998715/
https://www.ncbi.nlm.nih.gov/pubmed/35409822
http://dx.doi.org/10.3390/ijerph19074131
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author Szymańska-Walkiewicz, Monika
Glińska-Lewczuk, Katarzyna
Burandt, Paweł
Obolewski, Krystian
author_facet Szymańska-Walkiewicz, Monika
Glińska-Lewczuk, Katarzyna
Burandt, Paweł
Obolewski, Krystian
author_sort Szymańska-Walkiewicz, Monika
collection PubMed
description This study aimed to compare concentrations of chlorophyll-a between individual phytoplankton groups for four shallow Baltic coastal lakes, varying in type of connection with the sea. For two years, the research focused on quantifying the effects of abiotic factors—concentrations of heavy metals (Ba, Bi, Cr, Cu, Mn, Fe, Ni, Pb, and Zn) and hydrological connectivity—on phytoplankton composition, biomass, and photosynthetic activity. Our results show that hydrological factors are the main predictors of phytoplankton structure. The lakes differed in salinity: freshwater vs. brackish vs. transitional lakes. Irrespective of lake type, the dominant group was that of Cyanobacteria (~80%), but their percentage contribution was lower in the brackish lake. Baltic seawater intrusion resulted in a decrease in heavy-metal concentrations in lake water for Fe, Zn, Pb, and Bi. Redundancy analysis (RDA) suggested positive effects of some heavy metals on the biomass of the Chlorophyta and Bacillariophyta. For the Cryptophyta only, a slight decrease in biomass was linked with increased metal concentrations in open water.
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spelling pubmed-89987152022-04-12 Phytoplankton Sensitivity to Heavy Metals in Baltic Coastal Lakes Szymańska-Walkiewicz, Monika Glińska-Lewczuk, Katarzyna Burandt, Paweł Obolewski, Krystian Int J Environ Res Public Health Article This study aimed to compare concentrations of chlorophyll-a between individual phytoplankton groups for four shallow Baltic coastal lakes, varying in type of connection with the sea. For two years, the research focused on quantifying the effects of abiotic factors—concentrations of heavy metals (Ba, Bi, Cr, Cu, Mn, Fe, Ni, Pb, and Zn) and hydrological connectivity—on phytoplankton composition, biomass, and photosynthetic activity. Our results show that hydrological factors are the main predictors of phytoplankton structure. The lakes differed in salinity: freshwater vs. brackish vs. transitional lakes. Irrespective of lake type, the dominant group was that of Cyanobacteria (~80%), but their percentage contribution was lower in the brackish lake. Baltic seawater intrusion resulted in a decrease in heavy-metal concentrations in lake water for Fe, Zn, Pb, and Bi. Redundancy analysis (RDA) suggested positive effects of some heavy metals on the biomass of the Chlorophyta and Bacillariophyta. For the Cryptophyta only, a slight decrease in biomass was linked with increased metal concentrations in open water. MDPI 2022-03-31 /pmc/articles/PMC8998715/ /pubmed/35409822 http://dx.doi.org/10.3390/ijerph19074131 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Szymańska-Walkiewicz, Monika
Glińska-Lewczuk, Katarzyna
Burandt, Paweł
Obolewski, Krystian
Phytoplankton Sensitivity to Heavy Metals in Baltic Coastal Lakes
title Phytoplankton Sensitivity to Heavy Metals in Baltic Coastal Lakes
title_full Phytoplankton Sensitivity to Heavy Metals in Baltic Coastal Lakes
title_fullStr Phytoplankton Sensitivity to Heavy Metals in Baltic Coastal Lakes
title_full_unstemmed Phytoplankton Sensitivity to Heavy Metals in Baltic Coastal Lakes
title_short Phytoplankton Sensitivity to Heavy Metals in Baltic Coastal Lakes
title_sort phytoplankton sensitivity to heavy metals in baltic coastal lakes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8998715/
https://www.ncbi.nlm.nih.gov/pubmed/35409822
http://dx.doi.org/10.3390/ijerph19074131
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