Freshwater-adapted sea bass Dicentrarchus labrax feeding frequency impact in a lettuce Lactuca sativa aquaponics system
The aim of this study is to investigate the effect of three daily fish feeding frequencies, two, four and eight times per day (FF2, FF4, and FF8, respectively) on growth performance of sea bass (Dicentrarchus labrax)and lettuce plants (Lactuca sativa) reared in aquaponics. 171 juvenile sea bass with...
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| Format: | Article |
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PeerJ Inc.
2021-06-01
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| Online Access: | https://peerj.com/articles/11522.pdf |
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| author | Paraskevi Stathopoulou Panagiotis Berillis Nikolaos Vlahos Eleni Nikouli Konstantinos A. Kormas Efi Levizou Nikolaos Katsoulas Eleni Mente |
| author_facet | Paraskevi Stathopoulou Panagiotis Berillis Nikolaos Vlahos Eleni Nikouli Konstantinos A. Kormas Efi Levizou Nikolaos Katsoulas Eleni Mente |
| author_sort | Paraskevi Stathopoulou |
| collection | DOAJ |
| description | The aim of this study is to investigate the effect of three daily fish feeding frequencies, two, four and eight times per day (FF2, FF4, and FF8, respectively) on growth performance of sea bass (Dicentrarchus labrax)and lettuce plants (Lactuca sativa) reared in aquaponics. 171 juvenile sea bass with an average body weight of 6.80 ± 0.095 g were used, together with 24 lettuce plants with an average initial height of 11.78 ± 0.074 cm over a 45-day trial period. FF2 fish group showed a significantly lower final weight, weight gain and specific growth rate than the FF4 and FF8 groups. Voluntary feed intake was similar for all the three feeding frequencies treatmens (p > 0.05). No plant mortality was observed during the 45-day study period. All three aquaponic systems resulted in a similar leaf fresh weight and fresh and dry aerial biomass. The results of the present study showed that the FF4 or FF8 feeding frequency contributes to the more efficient utilization of nutrients for better growth of sea bass adapted to fresh water while successfully supporting plant growth to a marketable biomass. |
| first_indexed | 2024-03-09T06:32:45Z |
| format | Article |
| id | doaj.art-25ed97561b5941639e9300c05cb8d548 |
| institution | Directory Open Access Journal |
| issn | 2167-8359 |
| language | English |
| last_indexed | 2024-03-09T06:32:45Z |
| publishDate | 2021-06-01 |
| publisher | PeerJ Inc. |
| record_format | Article |
| series | PeerJ |
| spelling | doaj.art-25ed97561b5941639e9300c05cb8d5482023-12-03T11:02:15ZengPeerJ Inc.PeerJ2167-83592021-06-019e1152210.7717/peerj.11522Freshwater-adapted sea bass Dicentrarchus labrax feeding frequency impact in a lettuce Lactuca sativa aquaponics systemParaskevi Stathopoulou0Panagiotis Berillis1Nikolaos Vlahos2Eleni Nikouli3Konstantinos A. Kormas4Efi Levizou5Nikolaos Katsoulas6Eleni Mente7Department of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, Volos, GreeceDepartment of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, Volos, GreeceDepartment of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, Volos, GreeceDepartment of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, Volos, GreeceDepartment of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, Volos, GreeceDepartment of Agriculture Crop Production and Rural Environment, School of Agricultural Sciences, University of Thessaly, Volos, GreeceDepartment of Agriculture Crop Production and Rural Environment, School of Agricultural Sciences, University of Thessaly, Volos, GreeceDepartment of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, Volos, GreeceThe aim of this study is to investigate the effect of three daily fish feeding frequencies, two, four and eight times per day (FF2, FF4, and FF8, respectively) on growth performance of sea bass (Dicentrarchus labrax)and lettuce plants (Lactuca sativa) reared in aquaponics. 171 juvenile sea bass with an average body weight of 6.80 ± 0.095 g were used, together with 24 lettuce plants with an average initial height of 11.78 ± 0.074 cm over a 45-day trial period. FF2 fish group showed a significantly lower final weight, weight gain and specific growth rate than the FF4 and FF8 groups. Voluntary feed intake was similar for all the three feeding frequencies treatmens (p > 0.05). No plant mortality was observed during the 45-day study period. All three aquaponic systems resulted in a similar leaf fresh weight and fresh and dry aerial biomass. The results of the present study showed that the FF4 or FF8 feeding frequency contributes to the more efficient utilization of nutrients for better growth of sea bass adapted to fresh water while successfully supporting plant growth to a marketable biomass.https://peerj.com/articles/11522.pdfAquaponicsFeeding frequencyJuvenile sea bassLettuceWater reuse |
| spellingShingle | Paraskevi Stathopoulou Panagiotis Berillis Nikolaos Vlahos Eleni Nikouli Konstantinos A. Kormas Efi Levizou Nikolaos Katsoulas Eleni Mente Freshwater-adapted sea bass Dicentrarchus labrax feeding frequency impact in a lettuce Lactuca sativa aquaponics system PeerJ Aquaponics Feeding frequency Juvenile sea bass Lettuce Water reuse |
| title | Freshwater-adapted sea bass Dicentrarchus labrax feeding frequency impact in a lettuce Lactuca sativa aquaponics system |
| title_full | Freshwater-adapted sea bass Dicentrarchus labrax feeding frequency impact in a lettuce Lactuca sativa aquaponics system |
| title_fullStr | Freshwater-adapted sea bass Dicentrarchus labrax feeding frequency impact in a lettuce Lactuca sativa aquaponics system |
| title_full_unstemmed | Freshwater-adapted sea bass Dicentrarchus labrax feeding frequency impact in a lettuce Lactuca sativa aquaponics system |
| title_short | Freshwater-adapted sea bass Dicentrarchus labrax feeding frequency impact in a lettuce Lactuca sativa aquaponics system |
| title_sort | freshwater adapted sea bass dicentrarchus labrax feeding frequency impact in a lettuce lactuca sativa aquaponics system |
| topic | Aquaponics Feeding frequency Juvenile sea bass Lettuce Water reuse |
| url | https://peerj.com/articles/11522.pdf |
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