Optimized Utilization of Organic Carbon in Aquaculture Biofloc Systems: A Review

Biofloc technology (BFT) as an efficient aquaculture alternative is attracting attention for boosting biosecurity with minimal water exchange and reduced feed intake. BFT relies on applying organic carbon to maintain a high C/N ratio above 10, which allows heterotrophs to assimilate toxic nitrogen....

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Main Authors: Changwei Li, Xiaoyu Zhang, Yu Chen, Shiyu Zhang, Limin Dai, Wenjing Zhu, Yuan Chen
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Fishes
Subjects:
Online Access:https://www.mdpi.com/2410-3888/8/9/465
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author Changwei Li
Xiaoyu Zhang
Yu Chen
Shiyu Zhang
Limin Dai
Wenjing Zhu
Yuan Chen
author_facet Changwei Li
Xiaoyu Zhang
Yu Chen
Shiyu Zhang
Limin Dai
Wenjing Zhu
Yuan Chen
author_sort Changwei Li
collection DOAJ
description Biofloc technology (BFT) as an efficient aquaculture alternative is attracting attention for boosting biosecurity with minimal water exchange and reduced feed intake. BFT relies on applying organic carbon to maintain a high C/N ratio above 10, which allows heterotrophs to assimilate toxic nitrogen. A high percentage of carbon loss is thus generated from BFT. For this review, a thorough search of the relevant literature was conducted to gather valuable information on the optimization of carbon utilization. The keywords searched included ‘BFT’, ‘carbon use efficiency’, ‘carbon conversion’, ‘carbon retention’, ‘carbon emission’, ‘carbon loss’, and ‘carbon release’. The current review discusses the possible effects of various C/N ratios, carbon types, addition strategies, and technology integration with respect to the optimized carbon utilization in BFT. Given the extreme lack of accessible research, it was concluded that the carbon utilization in BFT is still in its initial research stage. Anyhow, this review sheds light on plausible approaches for boosted carbon utilization by adopting slow-release carbon, reducing carbon input, integrating with other technologies, and enhancing interactions between functional microbes within BFT, thereby contributing to sustainable aquaculture.
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spelling doaj.art-6d79f0bead9141038321decc3474b7a82023-11-19T10:41:05ZengMDPI AGFishes2410-38882023-09-018946510.3390/fishes8090465Optimized Utilization of Organic Carbon in Aquaculture Biofloc Systems: A ReviewChangwei Li0Xiaoyu Zhang1Yu Chen2Shiyu Zhang3Limin Dai4Wenjing Zhu5Yuan Chen6School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, ChinaBiofloc technology (BFT) as an efficient aquaculture alternative is attracting attention for boosting biosecurity with minimal water exchange and reduced feed intake. BFT relies on applying organic carbon to maintain a high C/N ratio above 10, which allows heterotrophs to assimilate toxic nitrogen. A high percentage of carbon loss is thus generated from BFT. For this review, a thorough search of the relevant literature was conducted to gather valuable information on the optimization of carbon utilization. The keywords searched included ‘BFT’, ‘carbon use efficiency’, ‘carbon conversion’, ‘carbon retention’, ‘carbon emission’, ‘carbon loss’, and ‘carbon release’. The current review discusses the possible effects of various C/N ratios, carbon types, addition strategies, and technology integration with respect to the optimized carbon utilization in BFT. Given the extreme lack of accessible research, it was concluded that the carbon utilization in BFT is still in its initial research stage. Anyhow, this review sheds light on plausible approaches for boosted carbon utilization by adopting slow-release carbon, reducing carbon input, integrating with other technologies, and enhancing interactions between functional microbes within BFT, thereby contributing to sustainable aquaculture.https://www.mdpi.com/2410-3888/8/9/465carbon utilizationC/Ncarbon typecarbon addition strategytechnology integration
spellingShingle Changwei Li
Xiaoyu Zhang
Yu Chen
Shiyu Zhang
Limin Dai
Wenjing Zhu
Yuan Chen
Optimized Utilization of Organic Carbon in Aquaculture Biofloc Systems: A Review
Fishes
carbon utilization
C/N
carbon type
carbon addition strategy
technology integration
title Optimized Utilization of Organic Carbon in Aquaculture Biofloc Systems: A Review
title_full Optimized Utilization of Organic Carbon in Aquaculture Biofloc Systems: A Review
title_fullStr Optimized Utilization of Organic Carbon in Aquaculture Biofloc Systems: A Review
title_full_unstemmed Optimized Utilization of Organic Carbon in Aquaculture Biofloc Systems: A Review
title_short Optimized Utilization of Organic Carbon in Aquaculture Biofloc Systems: A Review
title_sort optimized utilization of organic carbon in aquaculture biofloc systems a review
topic carbon utilization
C/N
carbon type
carbon addition strategy
technology integration
url https://www.mdpi.com/2410-3888/8/9/465
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