Study on the impact of Chinese mitten crab nursery wastewater on sediment microbes
With the continuous expansion of aquaculture scale, the amount of aquaculture wastewater discharged into external water bodies is gradually increasing. In addition to nutrients, aquaculture wastewater also contains harmful substances such as antibiotics, antibiotic resistance genes (ARGs), and heavy metals, which can pollute the environment and even endanger human health. There have been many studies on the changes in microbial communities in aquaculture sediments, but we still know very little about the impact of aquaculture effluent on the microbial communities in natural water bodies. Therefore, we investigated the microorganisms in natural water bodies that discharge aquaculture wastewater and identified their microbial communities through 16S rRNA sequencing