Interplay between eutrophication and climate warming on bacterial communities in coastal sediments differs depending on water depth and oxygen history.

ABSTRACT: Coastal aquatic systems suffer from nutrient enrichment, which results in accelerated eutrophication effects due to increased microbial metabolic rates. Climate change related prolonged warming will likely accelerate existing eutrophication effects, including low oxygen concentrations. However, how the interplay between these environmental changes will alter coastal ecosystems is poorly understood. In this study, we compared 16S rRNA gene amplicon based bacterial communities in coastal sediments of a Baltic Sea basin in November 2013 and 2017 at three sites along a water depth gradient with varying bottom water oxygen histories. The shallow site showed changes of only 1.1% in relative abundance of bacterial populations in 2017 compared to 2013, while the deep oxygen-deficient site showed u

SUBMITTER: Seidel L 

PROVIDER: S-EPMC8642432 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature