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Supplemental carbon sources applied in biofloc technology aquaculture systems: types, effects and future research
Author(s) -
Abakari Godwin,
Luo Guozhi,
Kombat Emmanuel O.,
Alhassan Elliot H.
Publication year - 2021
Publication title -
reviews in aquaculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.998
H-Index - 47
eISSN - 1753-5131
pISSN - 1753-5123
DOI - 10.1111/raq.12520
Subject(s) - carbon fibers , environmental science , carbon source , sustainability , total organic carbon , quality (philosophy) , biochemical engineering , computer science , ecology , biology , engineering , epistemology , algorithm , composite number , biochemistry , philosophy
Abstract Biofloc technology (BFT) systems have been driven towards increased sustainability in the last decade. BFT depends on maintenance of the optimal carbon‐to‐nitrogen (C/N) ratio through supplementation with organic carbon sources. The types of carbon sources and addition strategies are critical considerations in BFT systems. Thus for the purpose of this review, a thorough search of the literature was conducted to gather relevant information from reliable sources, ranging from reputable journals to books and useful reports in the field of BFT. Keywords used for the literature search include: ‘biofloc technology systems’, ‘carbon sources’, ‘solid carbon sources’, ‘effects of carbons sources’, ‘carbon source addition strategies’, ‘nutritional quality of bioflocs’, ‘carbon sources and water quality’, ‘C/N ratio in BFT’, and ‘carbon sources and bacterial community’. Among the several peer‐reviewed articles, books and technical reports consulted, 147 (dated from 1987 to 2020) were relevant for the preparation of this review. The current review thus examines the subject of supplemental carbon sources in BFT systems and discusses the various effects of their application with respect to the culture organism, microorganisms, water quality and the nutritional quality of flocs. The benefits and challenges associated with the types of carbon sources used in BFTs are also presented. Suggested organic carbon sources and their addition strategies are provided, and further research directions are proposed.

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