From currents to water masses: fine-scale insights into microbial biogeography in the Kuroshio-Oyashio Extension region.

ABSTRACT: The Kuroshio-Oyashio Extension (KOE) region is a highly variable region in the North Pacific Ocean, characterized by strong environmental gradients and multi-scale oceanographic processes. However, the fine-scale impact of these currents and associated water masses on microbial communities remains poorly understood. Here, high-resolution samples from 18 to 24 layers were collected along a transect in the KOE region in 2021, with 16S rRNA gene amplicon sequencing and environmental parameter measurements conducted to investigate the Kuroshio-Oyashio influence on microbial communities. Strong regional and vertical variations in environmental parameters and microbial communities were observed, with main horizontal regional differentiations confined to the upper 500 m. Photoautotrophic and olig

SUBMITTER: Huang R 

PROVIDER: S-EPMC12838210 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature