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Tytuł:
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Effects of an hypersaline effluent from an abandoned potash mine on freshwater biofilm and diatom communities.
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Autorzy:
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Vendrell-Puigmitja L; BETA Tech Center, TECNIO Network, University of Vic-Central University of Catalonia, C. de la Laura 13, 08500, Vic, Spain. Electronic address: .
Llenas L; BETA Tech Center, TECNIO Network, University of Vic-Central University of Catalonia, C. de la Laura 13, 08500, Vic, Spain.
Proia L; BETA Tech Center, TECNIO Network, University of Vic-Central University of Catalonia, C. de la Laura 13, 08500, Vic, Spain.
Ponsa S; BETA Tech Center, TECNIO Network, University of Vic-Central University of Catalonia, C. de la Laura 13, 08500, Vic, Spain.
Espinosa C; BETA Tech Center, TECNIO Network, University of Vic-Central University of Catalonia, C. de la Laura 13, 08500, Vic, Spain; CERM, Center for the Study of Mediterranean Rivers, University of Vic-Central University of Catalonia (UVic-UCC), Manlleu, Spain.
Morin S; UR EABX, INRAE, Centre Nouvelle-Aquitaine Bordeaux, Cestas, France.
Abril M; BETA Tech Center, TECNIO Network, University of Vic-Central University of Catalonia, C. de la Laura 13, 08500, Vic, Spain.
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Źródło:
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Aquatic toxicology (Amsterdam, Netherlands) [Aquat Toxicol] 2021 Jan; Vol. 230, pp. 105707. Date of Electronic Publication: 2020 Dec 02.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Original Publication: Amsterdam, Netherlands : Elsevier/North Holland Biomedical Press, c1981-
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MeSH Terms:
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Complex Mixtures*
Mining*
Biofilms/*drug effects
Diatoms/*drug effects
Fresh Water/*chemistry
Water Pollutants, Chemical/*toxicity
Biofilms/growth & development ; Biomass ; Diatoms/growth & development ; Ecosystem ; Fresh Water/microbiology ; Germany ; Microbiota/drug effects ; Salinity ; Water Pollutants, Chemical/analysis
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Contributed Indexing:
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Keywords: Abandoned mines; Aquatic biofilm; Diatoms; Freshwater salinization; Hypersaline effluents
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Substance Nomenclature:
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0 (Complex Mixtures)
0 (Water Pollutants, Chemical)
0 (potash)
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Entry Date(s):
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Date Created: 20201210 Date Completed: 20210104 Latest Revision: 20210104
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Update Code:
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20240104
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DOI:
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10.1016/j.aquatox.2020.105707
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PMID:
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33302174
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Potash abandoned mines cause severe environmental damage to their bordering environment, with significant impacts on freshwater ecosystems mostly through uncontrolled discharge of hypersaline effluents. This study aimed to evaluate the ecological impact caused by a hypersaline effluent from an abandoned potash mine (Menteroda, Germany) on freshwater biofilms and, specifically, on diatom communities. Biofilm from a pristine stream was exposed under controlled conditions in microcosms to a mining effluent (ME), and its structural (algal biomass, community composition, diatom metrics) and functional (photosynthetic activity, nutrient uptake) responses were evaluated over time and compared with unexposed biofilms used as control. Biofilm exposed to ME showed drastic functional responses after one day of exposure, with a significant decrease in photosynthetic efficiency and nutrient uptake, that were recovered over time. Biofilm exposed to ME showed a progressive increase in diatom metrics (abundance, density and growth rate) over time, compared to the control. However, a significant decrease in diatom species diversity, richness and cell size was also observed in biofilm exposed to ME. This study revealed that the ME affected the biofilm causing short-term functional responses, which were recovered simultaneously with a drastic diatom community structure shift.
(Copyright © 2020 Elsevier B.V. All rights reserved.)
Erratum in: Aquat Toxicol. 2021 Feb;231:105724. (PMID: 33373862)
