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The impact of iron coagulant on the behavior and biochemistry of freshwater mussels Anodonta cygnea and Unio tumidus during lake restoration

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cris.virtual.author-orcid0000-0002-8658-2691
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cris.virtualsource.author-orcid06037d89-952e-49ca-8b05-a2d4fb672ae9
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dc.abstract.enIron (Fe) treatment is one of the most commonly used methods to restore eutrophic lakes and reservoirs. The Fe-based coagulants dosage results in an almost immediate improvement in water quality at a relatively low cost. However, the effects of the application of coagulants are not always predictable, and the scale of the risks is not fully understood. The dosage of coagulants changes the chemical and physical properties of water, thereby affecting aquatic biocenoses. In this study, several laboratory experiments were conducted to evaluate the effects of Fe-based coagulant dosage on two bivalves species: Anodonta anatina and Unio tumidus. Their ability to efficiently filter water and reduce seston makes them a key component of aquatic ecosystems in terms of maintaining proper ecological health and stable functioning. Behavioral response, biochemical parameters, and body chemistry changes in mussels exposed to different doses of coagulant were surveyed. A dose-dependent reduction in filtration activity of both species was observed. As early as 10 g Fe m2 (which is a moderate dose used in lakes restoration), mussels of both species almost completely reduced their filtration activity and remained with closed valves for several subsequent days. Significant Fe accumulation in muscles of bivalves exposed to coagulant was also observed. This was particularly the case when very high doses of coagulant were applied. Then, the iron content in leg muscles of both species increased over fourfold. At the same time, a decrease in muscles calcium and phosphorus content was observed. No symptoms of oxidative stress (TBARS, H2O2) after mussels exposure to coagulants were found. The results suggest that the application of Fe-based coagulant for water ecosystem restoration may be a threat to the mussels population. These findings are significant for decisions on the selection of restoration methods for a specific lake.
dc.affiliationWydział Leśny i Technologii Drewna
dc.affiliation.instituteKatedra Chemii
dc.contributor.authorDrewek, Agnieszka
dc.contributor.authorRybak, Michał
dc.contributor.authorDrzewiecka, Kinga
dc.contributor.authorNiedzielski, Przemysław
dc.contributor.authorPolak, Jan
dc.contributor.authorKlimaszyk, Piotr
dc.date.access2026-01-09
dc.date.accessioned2026-01-09T19:00:17Z
dc.date.available2026-01-09T19:00:17Z
dc.date.copyright2022-06-16
dc.date.issued2022
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if8,7
dc.description.number15 September 2022
dc.description.points100
dc.description.versionfinal_published
dc.description.volume318
dc.identifier.doi10.1016/j.jenvman.2022.115535
dc.identifier.issn0301-4797
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/6695
dc.identifier.weblinkhttps://www.sciencedirect.com/science/article/pii/S0301479722011082
dc.languageen
dc.relation.ispartofJournal of Environmental Management
dc.relation.pagesart. 11535
dc.rightsCC-BY-NC
dc.sciencecloudnosend
dc.share.typeOTHER
dc.subject.enlake restoration
dc.subject.eniron coagulant
dc.subject.enacidification
dc.subject.enmussels
dc.titleThe impact of iron coagulant on the behavior and biochemistry of freshwater mussels Anodonta cygnea and Unio tumidus during lake restoration
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.volume318