Is Aquaponics Beneficial in Terms of Fish and Plant Growth and Water Quality in Comparison to Separate Recirculating Aquaculture and Hydroponic Systems?
Atique, F., Lindholm-Lehto, P., & Pirhonen, J. (2022). Is Aquaponics Beneficial in Terms of Fish and Plant Growth and Water Quality in Comparison to Separate Recirculating Aquaculture and Hydroponic Systems?. Water, 14(9), Article 1447. https://doi.org/10.3390/w14091447
Published in
WaterDate
2022Copyright
© 2022 the Authors
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 baby spinach (Spinacia oleracea) would be affected in a coupled aquaponic system compared to the growth of the fish in RAS or plants in a hydroponic system, all systems as three replicates. We also investigated the possible effects of plants on the onset of nitrification in biofilters and on the concentration of off-flavor-causing agents geosmin (GSM) and 2-methylisoborneol (MIB) in rainbow trout flesh and spinach. For the fish grown in aquaponics, the weight gain and specific growth rates were higher, and the feed conversion ratio was lower than those grown in RAS. In spinach, there were no significant differences in growth between aquaponic and hydroponic treatments. The concentration of GSM was significantly higher in the roots and MIB in the shoots of spinach grown in aquaponics than in hydroponics. In fish, the concentrations of MIB did not differ, but the concentrations of GSM were lower in aquaponics than in RAS. The onset of nitrification was faster in the aquaponic system than in RAS. In conclusion, spinach grew equally well in aquaponics and hydroponic systems. However, the aquaponic system was better than RAS in terms of onset of nitrification, fish growth, and lower concentrations of GSM in fish flesh.
...
Publisher
MDPI AGISSN Search the Publication Forum
2073-4441Keywords
Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/119025924
Metadata
Show full item recordCollections
Additional information about funding
This research was funded by Maa-ja Vesitekniikan Tuki ry and by Niemi-Foundation to F.A.License
Related items
Showing items with similar title or keywords.
-
Effect of ozone and hydrogen peroxide on off-flavor compounds and water quality in a recirculating aquaculture system
Pettersson, Samu Johannes; Lindholm-Lehto, Petra Camilla; Pulkkinen, Jani Tapio; Kiuru, Tapio; Vielma, Jouni (Elsevier BV, 2022)The recirculating aquaculture system (RAS) is an ever-developing technology for producing fish with a low environmental impact. However, off-flavors can be a major problem in RAS fish production. Off-flavor compounds are ... -
The effects of different combinations of fixed and moving bed bioreactors on rainbow trout (Oncorhynchus mykiss) growth and health, water quality and nitrification in recirculating aquaculture systems
Pulkkinen, Jani T.; Eriksson-Kallio, Anna M.; Aalto, Sanni L.; Tiirola, Marja; Koskela, Juha; Kiuru, Tapio; Vielma, Jouni (Elsevier BV, 2019)The effect of bioreactor design on nitrification efficiency has been well studied, but less is known about the overall impacts on water quality. Besides nitrification, submerged fixed bed bioreactors (FBBR) trap fine solid ... -
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 ... -
Effect of peracetic acid on levels of geosmin, 2-methylisoborneol, and their potential producers in a recirculating aquaculture system for rearing rainbow trout (Oncorhynchus mykiss)
Lindholm-Lehto, P. C.; Suurnäkki, Suvi; Pulkkinen, Jani; Aalto, Sanni L.; Tiirola, Marja; Vielma, J. (Elsevier BV, 2019)In recirculating aquaculture systems (RAS)s, off-flavors and odors, mainly caused by geosmin (GSM) and 2-methylisoborneol (MIB), can accumulate in the flesh of fish from RAS water, reducing the profitability of production. ... -
Depuration of geosmin- and 2-methylisoborneol-induced off-flavors in recirculating aquaculture system (RAS) farmed European whitefish Coregonus lavaretus
Lindholm-Lehto, P.C.; Vielma, J.; Pakkanen, H.; Alén, R. (Springer, 2019)European whitefish Coregonus lavaretus has increasingly become an important species for aquatic food production, especially in the Nordic countries. Whitefish is produced in traditional cage and pond operations, and in ...