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dc.contributor.authorSuurnäkki, Suvi
dc.contributor.authorPulkkinen, Jani T.
dc.contributor.authorLindholm-Lehto, Petra C.
dc.contributor.authorTiirola, Marja
dc.contributor.authorAalto, Sanni L.
dc.date.accessioned2019-10-28T10:59:14Z
dc.date.available2019-10-28T10:59:14Z
dc.date.issued2020
dc.identifier.citationSuurnäkki, S., Pulkkinen, J. T., Lindholm-Lehto, P. C., Tiirola, M., & Aalto, S. L. (2020). The effect of peracetic acid on microbial community, water quality, nitrification and rainbow trout (Oncorhynchus mykiss) performance in recirculating aquaculture systems. <i>Aquaculture</i>, <i>516</i>, Article 734534. <a href="https://doi.org/10.1016/j.aquaculture.2019.734534" target="_blank">https://doi.org/10.1016/j.aquaculture.2019.734534</a>
dc.identifier.otherCONVID_33254388
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/66073
dc.description.abstractMicrobial biofilters control water quality and enable the overall function of recirculation aquaculture systems (RAS). Changes in environmental conditions can affect the abundance and interactions of the diverse microbial populations of the biofilter, affecting nitrification of harmful ammonium and thus fish health. Here, we examined the effect of different application frequencies (0, 1, 2 and 4 times per week) of a common disinfectant, peracetic acid (PAA, applied 1.1 mg l−1 twice per day), on biofilter microbial communities, focusing especially on nitrifying microbial groups and using a high throughput sequencing of 16S rRNA gene and quantitative PCR (qPCR). In addition, we measured biofilter nitrification rates, water quality parameters, and fish performance. Although PAA additions did not significantly change the overall microbial community composition or abundance, the abundance of ammonia-oxidizing bacteria (AOB) and nitrate-oxidizing bacteria (NOB) first decreased at the beginning of the experiment but increased in numbers towards the end of the experiment with frequent PAA applications. PAA application decreased the nitrification rate, but increased the water quality in terms of reduced ammonium levels. PAA application did not significantly affect fish growth, but higher mortality was observed with the highest PAA application level of 4 times per week. These results suggest that when applied before the fish tank, PAA can be used for temporary water quality improvement without disturbing microbial communities. However, the application frequency required for persistent water quality improvement caused increased mortality.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofseriesAquaculture
dc.rightsCC BY-NC-ND 4.0
dc.subject.otherperetikkahappo
dc.subject.other16S rRNA
dc.subject.otherbiofiltration
dc.subject.othercomammox
dc.subject.othernitrification genes
dc.subject.otherperacetic acid
dc.titleThe effect of peracetic acid on microbial community, water quality, nitrification and rainbow trout (Oncorhynchus mykiss) performance in recirculating aquaculture systems
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201910284636
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.contributor.oppiaineAkvaattiset tieteetfi
dc.contributor.oppiaineYmpäristötiedefi
dc.contributor.oppiaineAquatic Sciencesen
dc.contributor.oppiaineEnvironmental Scienceen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.relation.issn0044-8486
dc.relation.volume516
dc.type.versionacceptedVersion
dc.rights.copyright© 2019 Elsevier B.V.
dc.rights.accesslevelopenAccessfi
dc.subject.ysovesiviljely (kalatalous)
dc.subject.ysomikrobit
dc.subject.ysonitrifikaatio
dc.subject.ysosuodattimet
dc.subject.ysokirjolohi
dc.subject.ysodenitrifikaatio
dc.subject.ysovedenlaatu
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p5099
jyx.subject.urihttp://www.yso.fi/onto/yso/p5424
jyx.subject.urihttp://www.yso.fi/onto/yso/p12486
jyx.subject.urihttp://www.yso.fi/onto/yso/p7454
jyx.subject.urihttp://www.yso.fi/onto/yso/p12317
jyx.subject.urihttp://www.yso.fi/onto/yso/p12487
jyx.subject.urihttp://www.yso.fi/onto/yso/p15738
dc.rights.urlhttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.relation.doi10.1016/j.aquaculture.2019.734534
jyx.fundinginformationWe greatly appreciate the fish husbandry and water sampling of the Natural Resources Institute Finland Laukaa fish farm personnel. We gratefully acknowledge Lars-Flemming Pedersen for his helpful information about PAA dosages. This experiment was funded by the European Union through the European Maritime and Fisheries Fund (EMFF) and by the Ministry of Agriculture and Forestry of Finland.


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