De Schepper, Stijn; Cordier, Tristan; Skaar, Katrine S; Ray, Jessica L; Sadatzki, Henrik; Risebrobakken, Bjørg: Differentiation index from Calypso core GS16-204-22CC-B, Eirik Drift, Labrador Sea [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.994597 (dataset in review), In: De Schepper, S et al.: Geophysical, sedimentological, stable isotope, radiocarbon, and metabarcoding data from Calypso cores GS16-204-22CC-A and GS16-204-CC-B, Eirik Drift, Labrador Sea [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.994374 (dataset in review)
Abstract:
This dataset shows the relative abundance of the five most important open ocean and sea ice indicator ASVs for the time interval 5–45 kyr b2k in GS16-204-22CC-B, Eirik Drift, Labrador Sea. The open ocean indicator ASVs are identified in the Holocene (5–8 ky b2k); the sea ice indicator ASVs in MIS 2-3 (20–35 ky b2k) of GS16-204-22CC-B. In these calibration windows, the indicator ASVs cannot be used for interpreting the environment. The indicator ASVs were identified in our metabarcoding dataset via the multipatt function of the indicspecies v1.8.0 R package (Cáceres and Legendre, 2009). The full metabarcoding dataset is available from the European Nucleotide Archive repository via accession number PRJEB112075.
Keyword(s):
References:
Cáceres, Miquel De; Legendre, Pierre (2009): Associations between species and groups of sites: indices and statistical inference. Ecology, 90(12), 3566-3574, https://doi.org/10.1890/08-1823.1
Funding:
European Research Council (ERC), grant/award no. 101118519: Into the Blue - Resolving past Arctic greenhouse climate (i2B)
European Research Council (ERC), grant/award no. 610055: Arctic Sea Ice and Greenland Ice Sheet Sensitivity
Horizon 2020 (H2020), grant/award no. 818449: A genetic view into past sea ice variability in the Arctic (AGENSI)
The Research Council of Norway (RCN), grant/award no. 268062: Environmental ancient DNA as proxy for sea ice reconstructions (ADNAPROX)
Coverage:
Latitude: 58.047167 * Longitude: -47.039333
Date/Time Start: 2016-08-28T00:00:00 * Date/Time End: 2016-08-28T00:00:00
Minimum Elevation: -3160.0 m * Maximum Elevation: -3160.0 m
Event(s):
GS16-204-22CC-B * Latitude: 58.047167 * Longitude: -47.039333 * Date/Time: 2016-08-28T00:00:00 * Elevation: -3160.0 m * Campaign: GS16-204 * Basis: G. O. Sars (2003) * Method/Device: Calypso Corer (CALYPSO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Age | Age | ka b2k | De Schepper, Stijn | ||
| 2 | Differentiation index | Diff Index | De Schepper, Stijn | Metabarcode data; split moving-window analysis using smwda function of the EcolUtils v0.1 R packages | ||
| 3 | Comment | Comment | De Schepper, Stijn | Statistically significant changes (1,000 permutations, p < 0.05) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
198 data points