Productivity of Fish and Crop Growth and Characteristics of Bacterial Communities in the FLOCponics System
Aquaponics (AP) and biofloc technology (BFT) systems rely heavily on bacterial communities to break down organic matter and cycle nutrients that are essential for fish and plant growth. The functional roles of bacterial communities in aquaculture systems are critical to their sustainable operation....
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| Format: | Article |
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MDPI AG
2023-08-01
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| Series: | Fishes |
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| Online Access: | https://www.mdpi.com/2410-3888/8/8/422 |
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| author | Ju-Ae Hwang Jun Seong Park Hae Seung Jeong Hyeongsu Kim Seung-Yoon Oh |
| author_facet | Ju-Ae Hwang Jun Seong Park Hae Seung Jeong Hyeongsu Kim Seung-Yoon Oh |
| author_sort | Ju-Ae Hwang |
| collection | DOAJ |
| description | Aquaponics (AP) and biofloc technology (BFT) systems rely heavily on bacterial communities to break down organic matter and cycle nutrients that are essential for fish and plant growth. The functional roles of bacterial communities in aquaculture systems are critical to their sustainable operation. Currently, the research on the combination of BFT and AP systems called FLOCponics (FP) is lacking, thereby hindering our ability to optimize their performance. Here, several characteristics (productivity of fish and crops, physicochemical properties of water, and bacterial community) in FP systems cultivating Japanese eel (<i>Anguilla japonica</i>) and leaf lettuce Caipira (<i>Lactuca sativa</i>) were compared to those in the BFT system. Additionally, the effect of fish density on the FP system was investigated. The results indicated that the FP system was more productive than the BFT system. Fish growth rate was highest in the FP system (52.6%), and the average body weight of eels was 168.2 ± 26.8 g in the FP system compared to 140.3 ± 27.0 g in the control (BFT, 5 kg/m<sup>2</sup>). However, increasing fish density resulted in lower growth rates, with a growth rate of 20.6% observed in the high-density (20 kg/m<sup>2</sup>) experimental group. The bacterial composition was also significantly different between the systems and fish densities, suggesting that bacterial communities may be closely related to the performance of the aquaponics system. |
| first_indexed | 2024-03-10T23:57:18Z |
| format | Article |
| id | doaj.art-68212c7a74114239b8d3ad1f076b86ba |
| institution | Directory Open Access Journal |
| issn | 2410-3888 |
| language | English |
| last_indexed | 2024-03-10T23:57:18Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fishes |
| spelling | doaj.art-68212c7a74114239b8d3ad1f076b86ba2023-11-19T01:04:25ZengMDPI AGFishes2410-38882023-08-018842210.3390/fishes8080422Productivity of Fish and Crop Growth and Characteristics of Bacterial Communities in the FLOCponics SystemJu-Ae Hwang0Jun Seong Park1Hae Seung Jeong2Hyeongsu Kim3Seung-Yoon Oh4Advanced Aquaculture Research Center, National Institute of Fisheries Science, Changwon 51688, Republic of KoreaAdvanced Aquaculture Research Center, National Institute of Fisheries Science, Changwon 51688, Republic of KoreaAdvanced Aquaculture Research Center, National Institute of Fisheries Science, Changwon 51688, Republic of KoreaAquaculture Research Division, National Institute of Fisheries Science, Busan 48513, Republic of KoreaDepartment of Biology and Chemistry, Changwon National University, Changwon 51140, Republic of KoreaAquaponics (AP) and biofloc technology (BFT) systems rely heavily on bacterial communities to break down organic matter and cycle nutrients that are essential for fish and plant growth. The functional roles of bacterial communities in aquaculture systems are critical to their sustainable operation. Currently, the research on the combination of BFT and AP systems called FLOCponics (FP) is lacking, thereby hindering our ability to optimize their performance. Here, several characteristics (productivity of fish and crops, physicochemical properties of water, and bacterial community) in FP systems cultivating Japanese eel (<i>Anguilla japonica</i>) and leaf lettuce Caipira (<i>Lactuca sativa</i>) were compared to those in the BFT system. Additionally, the effect of fish density on the FP system was investigated. The results indicated that the FP system was more productive than the BFT system. Fish growth rate was highest in the FP system (52.6%), and the average body weight of eels was 168.2 ± 26.8 g in the FP system compared to 140.3 ± 27.0 g in the control (BFT, 5 kg/m<sup>2</sup>). However, increasing fish density resulted in lower growth rates, with a growth rate of 20.6% observed in the high-density (20 kg/m<sup>2</sup>) experimental group. The bacterial composition was also significantly different between the systems and fish densities, suggesting that bacterial communities may be closely related to the performance of the aquaponics system.https://www.mdpi.com/2410-3888/8/8/422<i>Aestuariivirga</i>aquaculture<i>Bacillus</i>metabarcodingmicrobiota |
| spellingShingle | Ju-Ae Hwang Jun Seong Park Hae Seung Jeong Hyeongsu Kim Seung-Yoon Oh Productivity of Fish and Crop Growth and Characteristics of Bacterial Communities in the FLOCponics System Fishes <i>Aestuariivirga</i> aquaculture <i>Bacillus</i> metabarcoding microbiota |
| title | Productivity of Fish and Crop Growth and Characteristics of Bacterial Communities in the FLOCponics System |
| title_full | Productivity of Fish and Crop Growth and Characteristics of Bacterial Communities in the FLOCponics System |
| title_fullStr | Productivity of Fish and Crop Growth and Characteristics of Bacterial Communities in the FLOCponics System |
| title_full_unstemmed | Productivity of Fish and Crop Growth and Characteristics of Bacterial Communities in the FLOCponics System |
| title_short | Productivity of Fish and Crop Growth and Characteristics of Bacterial Communities in the FLOCponics System |
| title_sort | productivity of fish and crop growth and characteristics of bacterial communities in the flocponics system |
| topic | <i>Aestuariivirga</i> aquaculture <i>Bacillus</i> metabarcoding microbiota |
| url | https://www.mdpi.com/2410-3888/8/8/422 |
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