Ontology highlight
ABSTRACT:
SUBMITTER: Belt ST
PROVIDER: S-EPMC5013606 | biostudies-literature | 2016 Aug
REPOSITORIES: biostudies-literature
Nature communications 20160830
The presence of a di-unsaturated highly branched isoprenoid (HBI) lipid biomarker (diene II) in Southern Ocean sediments has previously been proposed as a proxy measure of palaeo Antarctic sea ice. Here we show that a source of diene II is the sympagic diatom Berkeleya adeliensis Medlin. Furthermore, the propensity for B. adeliensis to flourish in platelet ice is reflected by an offshore downward gradient in diene II concentration in >100 surface sediments from Antarctic coastal and near-coastal ...[more]