Armand, Leanne K; Crosta, Xavier; Romero, Oscar E; Pichon, Jean-Jacques (2005): Relative abundance of diatom species in surface samples from the Southern Ocean, Sea ice species [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.425284, Supplement to: Armand, LK et al. (2005): The biogeography of major diatom taxa in Southern Ocean sediments: 1. Ice related species. Palaeogeography, Palaeoclimatology, Palaeoecology, 223(1-2), 93-126, https://doi.org/10.1016/j.palaeo.2005.02.015
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Abstract:
Diatoms from 228 Southern Ocean core-top sediment samples were examined to determine the geographic distributions of 32 major diatom species/taxa preserved in the sediments of three zonally-distinct regions; Sea Ice, Open Ocean and the Tropical/Subtropical. In the first of three papers, 14 species/taxa occurring in the region where sea ice covers the ocean surface on an annual basis are geographically documented. Comparisons are drawn between the diatom abundances on the sea floor, sea ice parameters (annual duration and concentration in February and September) and February sea-surface temperature. Such parameters are commonly used in reconstructing past oceanographic conditions in the Sea Ice and Open Ocean zones. Analysis of the geographic patterns and sea-surface parameter correlations reveals species-specific distributions regulated primarily by sea ice coverage and sea-surface temperature, which support the use of diatom remains for the estimation of these past sea-surface environmental parameters. Comparison with reliable accounts of the 14 species from the sediments or plankton also provides the first glimpses into species-specific ecology and habitat linkages.
Project(s):
Coverage:
Median Latitude: -38.664575 * Median Longitude: -22.036029 * South-bound Latitude: -44.516800 * West-bound Longitude: -24.248500 * North-bound Latitude: -31.950000 * East-bound Longitude: -17.340000
Date/Time Start: 2000-02-17T05:54:00 * Date/Time End: 2000-03-04T02:21:00
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
GeoB6402-9 * Latitude: -39.742700 * Longitude: -22.756500 * Date/Time: 2000-02-17T05:54:00 * Elevation: -3878.0 m * Recovery: 0.43 m * Location: Central South Atlantic * Campaign: M46/4 * Basis: Meteor (1986) * Method/Device: Giant box corer (GKG) * Comment: 3 x bottom contact
GeoB6403-4 * Latitude: -40.013300 * Longitude: -23.365200 * Date/Time: 2000-02-17T20:49:00 * Elevation: -4226.0 m * Recovery: 0.14 m * Location: Central South Atlantic * Campaign: M46/4 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC) * Comment: 4 large, 4 small tubes filled
GeoB6404-3 * Latitude: -41.505800 * Longitude: -23.464800 * Date/Time: 2000-02-18T10:17:00 * Elevation: -4223.0 m * Recovery: 0.11 m * Location: Central South Atlantic * Campaign: M46/4 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC) * Comment: 4 large, 4 small tubes filled, CTD at 50 m
Comment:
Depth=Surface sediment 0-1 cm
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 6 | Actinocyclus actinochilus | A. actinochilus | % | Romero, Oscar E | Counting, diatoms | |
| 7 | Chaetoceros affinis, resting spores | C. affinis rs | % | Romero, Oscar E | Counting, diatoms | |
| 8 | Chaetoceros constrictus, resting spores | C. constrictus rs | % | Romero, Oscar E | Counting, diatoms | |
| 9 | Chaetoceros coronatus, resting spores | C. coronatus rs | % | Romero, Oscar E | Counting, diatoms | |
| 10 | Chaetoceros debilis, resting spores | C. debilis rs | % | Romero, Oscar E | Counting, diatoms | |
| 11 | Chaetoceros diadema, resting spores | C. diadema rs | % | Romero, Oscar E | Counting, diatoms | |
| 12 | Chaetoceros lorenzianus, resting spores | C. lorenzianus rs | % | Romero, Oscar E | Counting, diatoms | |
| 13 | Chaetoceros radicans, resting spores | C. radicans rs | % | Romero, Oscar E | Counting, diatoms | |
| 14 | Fragilariopsis separanda | F. separanda | % | Romero, Oscar E | Counting, diatoms | |
| 15 | Porosira pseudodenticulata | P. pseudodenticulata | % | Romero, Oscar E | Counting, diatoms | |
| 16 | Stellarima microtrias | S. microtrias | % | Romero, Oscar E | Counting, diatoms | |
| 17 | Thalassiosira antarctica | T. antarctica | % | Romero, Oscar E | Counting, diatoms | vegetative cell |
| 18 | Thalassiosira antarctica | T. antarctica | % | Romero, Oscar E | Counting, diatoms | spore |
| 19 | Thalassiosira tumida | T. tumida | % | Romero, Oscar E | Counting, diatoms |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
336 data points