Microbiome response to foam fractionation and ozonation in RAS
Aalto, S. L., Syropoulou, E., de Jesus Gregersen, K. J., Tiirola, M., Bovbjerg Pedersen, P., & Pedersen, L.-F. (2022). Microbiome response to foam fractionation and ozonation in RAS. Aquaculture, 550, Article 737846. https://doi.org/10.1016/j.aquaculture.2021.737846
Julkaistu sarjassa
AquacultureTekijät
Päivämäärä
2022Oppiaine
YmpäristötiedeResurssiviisausyhteisöNanoscience CenterEnvironmental ScienceSchool of Resource WisdomNanoscience CenterTekijänoikeudet
© 2021 the Authors
Efficient water treatment is required to maintain high water quality and control microbial growth in recirculating aquaculture systems (RAS). Here, we examined the effects of two treatment methods, ozonation and foam fractionation, separately and combined, on the microbiology in twelve identical experimental RAS with rainbow trout (Oncorhyncus mykiss) during 8 weeks. Microbes suspended in water and growing in biofilter biofilms were examined using flow cytometry analysis and high throughput sequencing of the 16S rRNA gene. The results showed that foam fractionation did not cause large changes in abundance or overall community composition of free-living microbes. Instead, through decreasing the organic matter availability in water, it targeted specific microbial taxa, leading to e.g. decreased potential for off-flavor production. In contrast, ozonation was found to have a profound impact on the system microbiology, by reducing the overall cell abundance, increasing microbial dead/live ratio, and changing the community composition of both free-living and biofilm microbes. Ozonation increased the abundance of certain key microbial taxa adapted to low carbon conditions, which might form a stable and more abundant community under a prolonged ozone dosing. Combining the two treatment methods did not provide any additional benefits as compared to ozonation solely, corroborating the high disinfection potential of ozone. However, ozone had only a minor impact on biofilter microbial communities, which were, in general, more resistant to water treatment than water communities. Water treatment had no effect on the overall genetic nitrification potential in the biofilter biofilms. However, foam fractionation led to changes in the nitrifying microbial community in biofilter, increasing the abundance of Nitrospira conducting complete ammonia oxidation to nitrate (comammox). Altogether, the results obtained indicate that although these two water treatment methods have similar outcomes on physico-chemical water quality and microbial activity, their underlying mechanisms are different, potentially leading to different outcomes under the long-term application.
...
![showless](/themes/JYX2//images/showless.png)
![showmore](/themes/JYX2//images/showmore.png)
Julkaisija
Elsevier BVISSN Hae Julkaisufoorumista
0044-8486Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/104128013
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Lisätietoja rahoituksesta
This study was funded by the European Maritime and Fisheries Fund (EMFF) and the Danish Fisheries Agency project.”Lanozo” (J. No. 33111-I-17-060).Lisenssi
Samankaltainen aineisto
Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.
-
Is Aquaponics Beneficial in Terms of Fish and Plant Growth and Water Quality in Comparison to Separate Recirculating Aquaculture and Hydroponic Systems?
Atique, Faiqa; Lindholm-Lehto, Petra; Pirhonen, Juhani (MDPI AG, 2022)Aquaponics is a technique where a recirculating aquaculture system (RAS) and hydroponics are integrated to grow plants and fish in a closed system. We investigated if the growth of rainbow trout (Oncorhynchus mykiss) and ... -
Quantity and Quality of Aquaculture Enrichments Influence Disease Epidemics and Provide Ecological Alternatives to Antibiotics
Karvonen, Anssi; Räihä, Ville; Klemme, Ines; Ashrafi, Roghaieh; Hyvärinen, Pekka; Sundberg, Lotta-Riina (MDPI AG, 2021)Environmental heterogeneity is a central component influencing the virulence and epidemiology of infectious diseases. The number and distribution of susceptible hosts determines disease transmission opportunities, shifting ... -
The effect of peracetic acid on microbial community, water quality, nitrification and rainbow trout (Oncorhynchus mykiss) performance in recirculating aquaculture systems
Suurnäkki, Suvi; Pulkkinen, Jani T.; Lindholm-Lehto, Petra C.; Tiirola, Marja; Aalto, Sanni L. (Elsevier, 2020)Microbial 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 ... -
Microbial communities in full-scale woodchip bioreactors treating aquaculture effluents
Aalto, Sanni L.; Suurnäkki, Suvi; von Ahnen, Mathis; Tiirola, Marja; Bovbjerg Pedersen, Per (Elsevier Ltd., 2022)Woodchip bioreactors are being successfully applied to remove nitrate from commercial land-based recirculating aquaculture system (RAS) effluents. In order to understand and optimize the overall function of these bioreactors, ... -
Biofiltration of airborne VOCs with green wall systems : microbial and chemical dynamics
Mikkonen, Anu; Li, Tao; Vesala, Mari; Saarenheimo, Jatta; Ahonen, Viivi; Kärenlampi, Sirpa; Blande, James D.; Tiirola, Marja; Tervahauta, Arja (Wiley-Blackwell Publishing, Inc., 2018)Botanical air filtration is a promising technology for reducing indoor air contaminants, but the underlying mechanisms need better understanding. Here, we made a set of chamber fumigation experiments of up to 16 weeks of ...
Ellei toisin mainittu, julkisesti saatavilla olevia JYX-metatietoja (poislukien tiivistelmät) saa vapaasti uudelleenkäyttää CC0-lisenssillä.