Effect of Immobilized Nitrifying Bacterial Consortium on Ammonia Biodegradation in Aquaculture Pond and Enhanced Growth of Labeo rohita: An In Vitro and In Vivo Studies

Sukeetha, Dionysiuse Sahaya; Kumar, S. Dinesh; Arjunan, Manikandan; Akila, V.; Santhanam, P.; Rajakumar, S.

doi:10.1007/s13369-019-04073-5

Cited by 13 publications

(1 citation statement)

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“…The important physicochemical parameters of water such as temperature, pH, dissolved oxygen (DO), total dissolved solids (TDS), Biological oxygen demand (BOD), Chemical oxygen demand (COD), nitrate-nitrogen (NO 3 -N), ammonia-nitrogen (NH 3 -N) and phosphate-phosphorous (PO À3 4 ) need to be assessed properly in different seasons for fish-health management. EKW not only serves as a rich source of nutrients but also harbours efficient and commercially important bacteria, such as nitrifying bacteria and heavy metal utilizing bacteria and microbes, that act as bioremediators by assimilating nitrogen and producing extracellular enzymes (Ghosh et al 2007;Saha et al 2013Saha et al , 2014Sahaya Sukeetha et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Water quality assessment of East Kolkata Wetland with a special focus on bioremediation by nitrifying bacteria

Saha

Sarkar

Bandyopadhyay

2021

Water Science and Technology

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East Kolkata Wetlands (EKW) is designated as International Ramsar site and are the hotspot for large-scale wastewater aquaculture practices. However, the continued surveillance of physicochemical properties of water and application of an eco-friendly approach are essential to ensure safe aquaculture practices. In the present study, we assessed the seasonal variation in physicochemical parameters of water across EKW and investigated the role of nitrifying bacteria as probiotics. We statistically analyzed various physicochemical properties of water samples from EKW. Results of the statistical analysis indicated a significant variation in all the physicochemical parameters across the selected water bodies of EKW (p < 0.01). We isolated and enumerated Nitrosomonas sp. and Nitrobacter sp. and assessed their ability to degrade trichloroethylene (TCE). The role of Nitrosomonas and Nitrobacter sp. were further investigated and established through a small-scale experiment. Two microbial isolates, NSW3 and NBW2, displayed superior TCE degradation ability at pH 5, and the application of these strains as probiotics were found to improve the quality of water and survival rate of fishes in the treated experimental tanks. Our findings suggest that the application of the above mixed bacterial cultures in aquaculture could be an effective and environment-friendly approach for safe and productive aquaculture operations.

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Section: Introductionmentioning

confidence: 99%