Daphnia magna filtration, swimming and mortality under ammonium, nitrite, nitrate and phosphate
dc.contributor.author
dc.date.accessioned
2020-12-01T12:56:29Z
dc.date.available
2020-12-01T12:56:29Z
dc.date.issued
2019-03-15
dc.identifier.issn
0048-9697
dc.identifier.uri
dc.description.abstract
Biological methods are a promising approach to treating wastewater in order to produce water of an appropriate quality for sub-potable water purposes, thus reducing pressure on potable water sources. Daphnia magna are organisms that filter on small suspended particles and bacteria and so may be able to clarify and disinfect wastewater. However, Daphnia magna are sensitive to common chemicals and might be vulnerable to the quality of the wastewater. This study analyses the filtration, mobility and mortality rates of Daphnia magna exposed to seven days of changing concentrations of ammonium, nitrite, nitrate and phosphate. Inactivation increased with the time of exposure for both nitrite and ammonium, with a 50% inactivation in Daphnia magna filtrations after 7 days of exposure at nitrite concentrations above 6 ppm and ammonium concentrations above 40 ppm. The Daphnia filtration remained unaltered in the nitrate and phosphate concentrations. Mortality increased with nitrite and ammonium concentrations, but not with phosphate or nitrate. The swimming velocity of Daphnia magna individuals decreased when both nitrite and ammonium concentrations increased and also with phosphate concentrations above 30 ppm. However, Daphnia magna swimming velocities remained unaltered in the presence of nitrate concentrations below 100 ppm
dc.description.sponsorship
This work was supported by the University of Girona funding MPCUdG2016 and by the INNOQUA project from the European Union's Horizon 2020 research and innovation program (Ares(2016)1770486)
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.relation.isformatof
Versió postprint del document publicat a: https://doi.org/10.1016/j.scitotenv.2018.11.382
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© Science of the Total Environment, 2019, vol. 656, p. 331-337
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Articles publicats (D-F)
dc.rights
Attribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.uri
dc.subject
dc.title
Daphnia magna filtration, swimming and mortality under ammonium, nitrite, nitrate and phosphate
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2021-03-15
dc.relation.projectID
info:eu-repo/grantAgreement/EC/H2020/689817/EU/Innovative Ecological on-site Sanitation System for Water and Resource Savings/INNOQUA
dc.type.version
info:eu-repo/semantics/acceptedVersion
dc.identifier.doi
dc.identifier.idgrec
029757
dc.type.peerreviewed
peer-reviewed
dc.relation.FundingProgramme
dc.relation.ProjectAcronym
dc.identifier.eissn
1879-1026