Bioaugmentation with nitrifying and denitrifying microbial consortia for mitigation of nitrogenous metabolites in shrimp ponds

Patil, Prasanna Kumar; Antony, Leo; Avunje, Satheesha; Baskaran, Viswanathan; Lalitha, N.; Jangam, Ashok Kumar; Kumar, D. Dinesh; Solanki, H.G.; Reddy, Mohan Anjaneya; Alavandi, S.V.; Vijayan, Koyadan Kizhakedath

doi:10.1016/j.aquaculture.2021.736819

Cited by 21 publications

(4 citation statements)

References 57 publications

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“…During the five days of testing, a rapid decrease in NH4 + -N concentration, a slight increase, followed by a sharp decline of NO2 --N concentration, a gradual increase followed by a slight fluctuation of NO3 --N concentration, and a slow decrease of TIN concentration were observed (Figure 6). The concentration dynamics of NH4 + -N, NO2 --N, NO3 --N, and TIN clearly demonstrated the efficient nitrifying activity of enriched bioflocs in the reactors, which were comparable to relative studies [28,42,45]. It is worthy to note…”

Section: Nitrification Efficiency Of Enriched Bioflocs and Their Rela...supporting

confidence: 71%

“…Bioflocs are typically microbial aggregates, and their formation and development are accompanied by the attachment growth process of nitrifying bacteria [7,12,13]. To date, there have been reports on the enrichment of nitrifying bacterial consortia or heterotrophic bioflocs from aquatic systems [16,27,28], while no study has been conducted to explore the rapid and effective enrichment of nitrifying bioflocs.…”

Section: Introductionmentioning

confidence: 99%

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Impact of Organic Carbons Addition on the Enrichment Culture of Nitrifying Biofloc from Aquaculture Water: Process, Efficiency, and Microbial Community

Wu,

Xu,

et al. 2024

Microorganisms

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In this study, we developed a rapid and effective method for enriching the culture of nitrifying bioflocs (NBF) from aquacultural brackish water. The self-designed mixotrophic mediums with a single or mixed addition of sodium acetate, sodium citrate, and sucrose were used to investigate the enrichment process and nitrification efficiency of NBF in small-scale reactors. The results showed that NBF with an MLVSSs from 1170.4 mg L−1 to 2588.0 mg L−1 were successfully enriched in a period of less than 16 days. The citrate group performed the fastest enrichment time of 10 days, while the sucrose group had the highest biomass of 2588.0 ± 384.7 mg L−1. In situ testing showed that the highest nitrification efficiency was achieved in the citrate group, with an ammonia oxidation rate of 1.45 ± 0.34 mg N L−1 h−1, a net nitrification rate of 2.02 ± 0.20 mg N L−1 h−1, and a specific nitrification rate of 0.72 ± 0.14 mg N g−1 h−1. Metagenomic sequencing revealed that Nitrosomonas (0.0~1.0%) and Nitrobacter (10.1~26.5%) were dominant genera for AOB and NOB, respectively, both of which had the highest relative abundances in the citrate group. Linear regression analysis further demonstrated significantly positive linear relations between nitrification efficiencies and nitrifying bacterial genera and gene abundance in NBF. The results of this study provide an efficient enrichment culture method of NBF for the operation of biofloc technology aquaculture systems, which will further promote its wide application in modern intensive aquaculture.

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Section: Nitrification Efficiency Of Enriched Bioflocs and Their Rela...supporting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Impact of Organic Carbons Addition on the Enrichment Culture of Nitrifying Biofloc from Aquaculture Water: Process, Efficiency, and Microbial Community

Wu,

Xu,

et al. 2024

Microorganisms

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“…Such materials cause a chain reaction, which produces the components that contribute to contamination and degradation of water quality. Ammonia, urea, and carbon dioxide are the most common metabolic waste materials found in shrimp aquaculture sewage [Patil et al, 2021].…”

Section: Pca Resultsmentioning

confidence: 99%

Interrelationship and Determining Factors of Water Quality Dynamics in Whiteleg Shrimp Ponds in Tropical Eco-Green Aquaculture System

Musa¹,

Mahmudi²,

Arsad³

et al. 2023

J. Ecol. Eng.

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Whiteleg shrimp (Litopenaeus vannamei) farming is a major activity in the coastal areas of many tropical countries. To meet the demand in this market, the culture system has expanded using intensive technology, which has resulted in the emission of effluents that threaten the surrounding aquatic ecosystem. Therefore, proper aquaculture management is needed to ensure both economic and ecological benefits. This led to the emergence of eco-green aquaculture. Water quality monitoring is a critical part of aquaculture management and when performed regularly, it yields a large and complex dataset. In this study, the authors aimed to analyse the dynamics of water quality characteristics and the relationships between these variables in whiteleg shrimp ponds in a tropical eco-green aquaculture system from 2020 to 2022. Since the data includes nine parameters and is quite complex, the principal component analysis (PCA) approach was used. This method enables to identify the factors that determine water quality, which will help ensure effective and efficient aquaculture management. Consequently, the water quality variables in the studied area were reduced to five dimensions and salinity, ammonia, and pH were found to be the key factors responsible for the changes in water quality characteristics. Hence, these variables should be the focus of farming management systems.

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“…217 Apart from chemicals and biofilters, bioaugmentation with the microbial consortium is found to be promising in in situ bioremediation of ammonia in zero water exchange systems like RAS and biofloc technology (BFT) as well as in shrimp culture systems. 195,[218][219][220][221] Although bioaugmentation is a simple, inexpensive and environment friendly method of ammonia mitigation, maintenance of viable bacterial cultures in an active growth phase at a high cell density might be a constraint. 195 Electrooxidation for TAN removal is a recent technology for seawater and freshwater RAS.…”

mentioning

confidence: 99%

Ammonia induced toxico‐physiological responses in fish and management interventions

Parvathy

Das

Jifiriya

et al. 2022

Reviews in Aquaculture

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Intensification of aquaculture practices resulted in increased ammonia production in the culture systems. Lack of proper management of the culture system will result in elevated ammonia, which adversely affects the culture species. Moreover, with the ongoing global warming, fish metabolism and ammonia excretion are expected to increase. This, coupled with the hypoxic condition, exacerbates the severity of ammonia toxicity. Ammonia toxicity can alter the growth and the biochemical, physiological and immunological responses of fish. Several factors such as pH, temperature, salinity, dissolved oxygen, species and life stages of fish, physical activity, feeding and stress influence the toxicity of ammonia in fish. A proper understanding of these factors is a prerequisite for successful aquaculture. The physiological changes caused by the elevated ammonia hinder homeostasis that eventually increases their susceptibility to diseases. This review discusses ammonia toxicity in fish, factors affecting the toxicity and various physiological, haematological, histological and immunological responses induced by the elevated ammonia. Furthermore, the review summarizes various management and dietary interventions to mitigate ammonia and ammonia induced stress in aquaculture.

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Bioaugmentation with nitrifying and denitrifying microbial consortia for mitigation of nitrogenous metabolites in shrimp ponds

Cited by 21 publications

References 57 publications

Impact of Organic Carbons Addition on the Enrichment Culture of Nitrifying Biofloc from Aquaculture Water: Process, Efficiency, and Microbial Community

Impact of Organic Carbons Addition on the Enrichment Culture of Nitrifying Biofloc from Aquaculture Water: Process, Efficiency, and Microbial Community

Interrelationship and Determining Factors of Water Quality Dynamics in Whiteleg Shrimp Ponds in Tropical Eco-Green Aquaculture System

Ammonia induced toxico‐physiological responses in fish and management interventions

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