Effects and Mechanisms of Microbial Agents and Carbon Sources on Aquaculture Environment
DOI: 10.23977/erej.2023.070209 | Downloads: 6 | Views: 234
Quansheng Wang 1
1 Hebei Agricultural University, Baoding, Hebei, 071001, China
Corresponding AuthorQuansheng Wang
Improving aquaculture environment through microbial manipulation has been a hot topic in aquaculture research in recent ten years. The effectiveness of microbiological agents in improving aquaculture water quality, especially in the degradation of inorganic nitrogen, remains controversial. One of the reasons is the lack of understanding of the pathway through which microbiological agents affect the environment. The effects of carbon sources and two microbial agents on ammonia nitrogen conversion in a cultured environment were studied by two in-situ experiments. The results showed that the inorganic carbon and organic carbon increased significantly in the sterilized and non-sterilized groups. The conversion trend of inorganic nitrogen was the same. The ammonia nitrogen and nitrite did not decrease, and the nitrate decreased significantly. The results indicated that there was no significant change in the function and unextinguished effect of nitrifying bactericide after sterilization. The effect of adding microbial agents on the conversion of inorganic ammonia in the environment might be due to the role of carbon source itself.
KEYWORDSMicrobial preparation; Carbon nitrogen ratio; Aquaculture; Fine bacteria
CITE THIS PAPER
Quansheng Wang, Effects and Mechanisms of Microbial Agents and Carbon Sources on Aquaculture Environment. Environment, Resource and Ecology Journal (2023) Vol. 7: 49-54. DOI: http://dx.doi.org/10.23977/erej.2023.070209.
 Dong S, Li Y, Jiang F, et al. Performance of Platymonas and microbial community analysis under different C/N ratio in biofloc technology aquaculture system [J]. Journal of Water Process Engineering, 2021, 43: 102257.
 Shu H, Sun H, Huang W, et al. Nitrogen removal characteristics and potential application of the heterotrophic nitrifying-aerobic denitrifying bacteria Pseudomonas mendocina S16 and Enterobacter cloacae DS'5 isolated from aquaculture wastewater ponds [J]. Bioresource Technology, 2022, 345: 126541.
 Michaud L, Blancheton J P, Bruni V, et al. Effect of particulate organic carbon on heterotrophic bacterial populations and nitrification efficiency in biological filters [J]. Aquacultural engineering, 2006, 34(3): 224-233.
 Deng B, Fu L, Zhang X, et al. The denitrification characteristics of Pseudomonas stutzeri SC221-M and its application to water quality control in grass carp aquaculture [J]. PloS one, 2014, 9(12): e114886.
 Asaduzzaman M, Rahman M M, Azim M E, et al. Effects of C/N ratio and substrate addition on natural food communities in freshwater prawn monoculture ponds[J]. Aquaculture, 2010, 306(1-4): 127-136.
 Hui Liang D, Hu Y, Liang D, et al. Bioaugmentation of Moving Bed Biofilm Reactor (MBBR) with Achromobacter JL9 for enhanced sulfamethoxazole (SMX) degradation in aquaculture wastewater [J]. Ecotoxicology and Environmental Safety, 2021, 207: 111258.