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Heterotrophic nitrifying and aerobic denitrifying bacteria: Characterization and comparison of shrimp pond and effluent discharge channel in aspects of composition and function

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Title Heterotrophic nitrifying and aerobic denitrifying bacteria: Characterization and comparison of shrimp pond and effluent discharge channel in aspects of composition and function
 
Creator Arjun Singh
 
Subject HNADNitrogen removalNitrate reductionShrimp pondCoastal aquacultureEffluent discharge channel
 
Description Not Available
The rapidly growing aquaculture industry is associated with numerous environmental problems, especially nitrogen pollution. The HNAD (heterotrophic nitrifying/aerobic denitrifying) bacteria emerging as efficient nitrogen removal life forms were characterized and compared in shrimp pond and effluent discharge channel from the aspects of composition and function. Eighty three HNAD bacterial strains belonging to the Proteobacteria, Firmicutes, Actinobacteria and Deinococcus-Thermus were found. Alpha diversity index by Shannon and Chao1 showed more diverse genera in effluent channel than shrimp pond water. The mean potential nitrate-N removal activity was significantly higher in effluent channel water (15.57 ? 3.39) as compared to shrimp pond (9.06 ? 5.76). Nitrate reduction, nitrate respiration and aerobic chemoheterotophy were significantly higher in effluent channel than shrimp pond. This study will help in understanding and developing culturable HNAD bacteria for successful transformation of nitrogenous waste in coastal aquaculture and wastewater treatment systems.
 
Date 2021-07-28T04:15:31Z
2021-07-28T04:15:31Z
2021-6-1
 
Type Research Paper
 
Identifier Not Available
0044-8486
http://krishi.icar.gov.in/jspui/handle/123456789/50353
 
Language English
 
Publisher Not Available