Ocean Science
Ocean Science
OS
Articles | Volume 16, issue 5
Articles | Volume 16, issue 5
https://doi.org/10.5194/os-16-1017-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-16-1017-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 16, issue 5
Research article
 | 
07 Sep 2020
Research article |  | 07 Sep 2020

Changes in the composition of marine and sea-ice diatoms derived from sedimentary ancient DNA of the eastern Fram Strait over the past 30 000 years

Heike H. Zimmermann, Kathleen R. Stoof-Leichsenring, Stefan Kruse, Juliane Müller, Ruediger Stein, Ralf Tiedemann, and Ulrike Herzschuh

Supplement

https://doi.org/10.5194/os-16-1017-2020-supplement

Data sets

Diatom sedimentary ancient DNA metabarcoding from western Fram Strait and Kronotsky Peninsula, Dryad, Dataset Heike H. Zimmermann, Kathleen R. Stoof-Leichsenring, Stefan Kruse, Juliane Müller, Ruediger Stein, Ralf Tiedemann, and Ulrike Herzschuh https://doi.org/10.5061/dryad.bnzs7h481

Model code and software

R code for resampling and thus normalizing of count data to the minimum number of counts across a set of samples (e.g. sedaDNA sequence/pollen taxa counts per sample along a sediment core) S. Kruse https://github.com/StefanKruse/R_Rarefaction

Download
Short summary
This study targets high-resolution, diatom-specific sedimentary ancient DNA using a DNA metabarcoding approach. Diatom DNA has been preserved with substantial taxonomic richness in the eastern Fram Strait over the past 30 000 years with taxonomic composition being dominated by cold-water and sea-ice-associated diatoms. Taxonomic reorganisations took place after the Last Glacial Maximum and after the Younger Dryas. Peak proportions of pennate diatoms might indicate past sea-ice presence.
Read more