Changes in Microbial Community Assemblages Due To Urban Pollution, Detected via rRNA Gene Amplicon Sequencing in the Magdalena River, Mexico City.

ABSTRACT: As freshwater sources become increasingly polluted and depleted, the delicate balance of aquatic environments is disrupted, leading to cascading effects throughout entire ecosystems. This disruption manifests in various ways, including changes in water chemistry, temperature fluctuations, and the introduction of contaminants, all of which contribute to alterations in microbial communities. We applied eDNA metabarcoding to characterize microbial communities along an anthropogenic pollution gradient in the Magdalena River, a tropical river in Mexico City. Sampling was conducted at four sites representing different levels of human influence. Results revealed differences in both bacterial and microeukaryotic community compositions between sites. In areas with low to moderate disturbance, bacte

SUBMITTER: Cruz-Cano R 

PROVIDER: S-EPMC12317890 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature