Dynamics of nitrogenous compounds and their control in biofloc technology (BFT) systems: A review

Abakari, Godwin; Luo, Guozhi; Kombat, Emmanuel O.

doi:10.1016/j.aaf.2020.05.005

Cited by 60 publications

(35 citation statements)

References 41 publications

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“…Two phylogenetically distinct autotrophic bacterial groups are involved in the classical nitrification process: ammonia‐oxidising bacteria (AOB) and nitrite‐oxidising bacteria (NOB). Classical autotrophic nitrification is a two‐step process: AOBs oxidise TAN into NO 2 − ‐N, and NOBs oxidise NO 2 − ‐N into NO 3 − ‐N 128,129 …”

Section: Relationship Between Bacteria and Nutrients In Bft Systemsmentioning

confidence: 99%

Bacteria in biofloc technology aquaculture systems: roles and mediating factors

Abakari

et al. 2022

Reviews in Aquaculture

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The abundance of nitrogen compounds, phosphorous compounds and organic matter in biofloc technology (BFT) aquaculture systems creates an ideal medium for increasing microbial communities and load. The abundance of microbial DNA found in BFT aquaculture systems is hypothesised to be among the greatest in current aquaculture systems. Several factors mediate the bacterial diversity, relative abundance and dynamics in BFT systems. This review focusses on the bacteria in BFT aquaculture systems, their role as food for animals present in the culture and their various relationships with major nutrients. The analytical techniques available for determining bacterial integrity and function are reviewed along with the factors that affect microbial community structure, water quality and production performance. Future investigations to characterise bacteria in BFT aquaculture systems and their roles and mediating factors are suggested.

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Section: Relationship Between Bacteria and Nutrients In Bft Systemsmentioning

confidence: 99%

Bacteria in biofloc technology aquaculture systems: roles and mediating factors

Abakari

et al. 2022

Reviews in Aquaculture

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“…In addition, other effects are a decrease in the number of blood cells, a decrease in the concentration of oxygen in the blood, a decrease in physical resistance and resistance to disease, and structural damage to various types of shrimp organs. Several research results state that the accumulation of ammonia in aquaculture water causes various kinds of damage to aquatic organisms, especially damage to the function and structure of body organs [68,145].…”

Section: Water Quality Statusmentioning

confidence: 99%

Temporal and Spatial Analysis of Coastal Water Quality to Support Application of Witheleg Shrimp, <em>Litopenaeus vannamei</em> Intensive Pond Technology

Mustafa¹

2022

Preprint

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Bulukumba Regency, South Sulawesi, Indonesia is one of the centres for whiteleg shrimp, Litopenaeus vannamei production that applies intensive technology. However, no information has been obtained regarding the characteristics and status of water quality in coastal areas with environmentally friendly concepts and the potential to receive a waste load. The study aimed to determine the performance of whiteleg shrimp culture in relation to temporal and spatial aspects and characteristic and water quality status. Measurement and sampling of water were carried out before stocking/initial of culture whiteleg shrimp (rainy season) and end of culture/after harvesting of whiteleg shrimp (dry season) at two locations in the coastal area of Bulukumba Regency, namely Bonto Bahari Subdistrict (BB) and Gantarang Subdistrict (GT). Variables measured and analyzed included temperature, salinity, pH, dissolved oxygen, nitrate, nitrite, ammonia, phosphate, total suspended solids, and total organic matter. Data analysis with descriptive statistics, multivariate statistics, and non-parametric statistics. The Storet (Storage and Retrieval) method was used to determine the water quality status. The results showed that the culture of whiteleg shrimp was technology-intensive with a stocking density of 110 - 220 ind/m2 with productivity between 13.9 - 44.4 tons/ha/cycle. The predicted waste load of N is 28.00 tons/cycle and P reaches 6.61 tons/cycle. Another result was that changes in water quality status during the rainy season were classified as moderately polluted at the BB location and complying quality standards at the GT location, while in the dry season, both locations were categorized as heavily polluted. Variables of water quality that caused the decrease in water quality status in both locations (BB and GT) were observed to increase salinity, nitrate concentration, and ammonia concentration. However, there was a decrease in dissolved oxygen concentration in the dry season.

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“…Kelompok anak yatim diberi pelatihan teknik budidaya lele secara organik dengan menggunakan bioflok, sehingga kelompok anak yatim bisa membangun kewirausaahan secara mandiri untuk aktif membantu perekonomian keluarga. Dalam penggunaan teknologi BRL yang perlu diperhatikan adalah kondisi ratio C/N yang seimbang (Abakari et al, 2020). Kemudian menurut Halim e al, (2019) BRL dalam kondisi heterotrofik rasio C: N sekitar 10-12.…”

Section: Pendahuluanunclassified

Pelatihan Teknik Budidaya Lele Organik Dengan Metode BRL di Desa Lopak Aur

Syarifuddin

Devitriano

2021

dinamisia

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The service has been carried out in the Yatim Mandiri Farmer Group, which consists of orphans in Lopak Aur Village, Pemayung District, Batanghari Regency. The implementation of the community service for 4 months from May to September 2020. The objective is to increase the knowledge and skills of farmer group members for catfish cultivation using the Eco-friendly Biofloc (BRL) method. The results of the dedication show that the orphan group has a high interest in cultivating catfish using the BRL technique. This is because catfish farming can be done without disturbing the school schedule of group members and the implementation is easy to do and provides economic value to meet the needs of orphans. The initial stage of catfish farming using the BRL technique has increased the knowledge and insight of orphans in trying to be independent. The prospect of catfish farming using the BRL technique can build an entrepreneurial spirit for orphans so that they can support the family economy.

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Dynamics of nitrogenous compounds and their control in biofloc technology (BFT) systems: A review

Cited by 60 publications

References 41 publications

Bacteria in biofloc technology aquaculture systems: roles and mediating factors

Bacteria in biofloc technology aquaculture systems: roles and mediating factors

Temporal and Spatial Analysis of Coastal Water Quality to Support Application of Witheleg Shrimp, <em>Litopenaeus vannamei</em> Intensive Pond Technology

Pelatihan Teknik Budidaya Lele Organik Dengan Metode BRL di Desa Lopak Aur

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