A decadal perspective on north water microbial eukaryotes as Arctic Ocean sentinels.

ABSTRACT: The North Water region, between Greenland and Ellesmere Island, with high populations of marine birds and mammals, is an Arctic icon. Due to climate related changes, seasonal patterns in water column primary production are changing but the implications for the planktonic microbial eukaryote communities that support the ecosystem are unknown. Here we report microbial community phenology in samples collected over 12 years (2005-2018) from July to October and analysed using high throughput 18S rRNA V4 amplicon sequencing. Community composition was tied to seasonality with summer communities more variable than distinct October communities. In summer, sentinel pan-Arctic species, including a diatom in the Chaetoceros socialis-gelidus complex and the picochlorophyte Micromonas polaris dominated

SUBMITTER: Freyria NJ 

PROVIDER: S-EPMC8052464 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature