Living coccolith assemblages of surface sediment samples from the Pacific sector of the Southern Ocean
This study examined recent coccolith surface sediment assemblages across the Pacific sector of the Southern Ocean (from Punta Arenas, Chile toWellington, New Zealand). Twenty five stations located within 44.4°S to 65.4°S and 80.1°W to 174.5°E were selected in order to assess if and how the surface s...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.867497 2024-09-15T17:46:25+00:00 Living coccolith assemblages of surface sediment samples from the Pacific sector of the Southern Ocean Saavedra-Pellitero, Mariem Baumann, Karl-Heinz MEDIAN LATITUDE: -57.293886 * MEDIAN LONGITUDE: -155.050906 * SOUTH-BOUND LATITUDE: -65.410980 * WEST-BOUND LONGITUDE: 174.525770 * NORTH-BOUND LATITUDE: -44.408650 * EAST-BOUND LONGITUDE: -80.089670 * DATE/TIME START: 2009-11-29T17:12:00 * DATE/TIME END: 2010-01-24T01:33:00 * MINIMUM DEPTH, sediment/rock: 0 m * MAXIMUM DEPTH, sediment/rock: 0 m 2015 text/tab-separated-values, 425 data points https://doi.pangaea.de/10.1594/PANGAEA.867497 https://doi.org/10.1594/PANGAEA.867497 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.867497 https://doi.org/10.1594/PANGAEA.867497 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Saavedra-Pellitero, Mariem; Baumann, Karl-Heinz (2015): Comparison of living and surface sediment coccolithophore assemblages in the Pacific sector of the Southern Ocean. Micropaleontology, 61(6), 507-520, https://www.micropress.org/microaccess/micropaleontology/issue-321/article-1965 Acanthoica sp. ANT-XXVI/2 Calcidiscus leptoporus Center for Marine Environmental Sciences Coccoliths Coccolithus braarudii DEPTH sediment/rock Elevation of event Emiliania huxleyi Event label Florisphaera profunda Gephyrocapsa ericsonii Gephyrocapsa muellerae Gephyrocapsa oceanica Gephyrocapsa spp. Helicosphaera carteri Latitude of event Longitude of event MARUM MUC MultiCorer Polarstern Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas PS75/034-1 PS75/049-1 PS75/051-2 PS75/063-2 PS75/065-2 PS75/068-1 PS75/070-1 PS75/072-3 PS75/074-1 PS75/076-1 PS75/080-2 PS75/082-2 PS75/084-1 PS75/085-2 PS75/086-1 PS75/090-6 PS75/091-6 PS75/092-1 PS75/094-3 PS75/095-6 PS75/097-5 PS75/099-1 PS75/100-1 PS75/104-2 PS75/105-1 PS75 BIPOMAC dataset 2015 ftpangaea https://doi.org/10.1594/PANGAEA.867497 2024-08-27T23:49:29Z This study examined recent coccolith surface sediment assemblages across the Pacific sector of the Southern Ocean (from Punta Arenas, Chile toWellington, New Zealand). Twenty five stations located within 44.4°S to 65.4°S and 80.1°W to 174.5°E were selected in order to assess if and how the surface sediment assemblages reflect the present-day coccolithophore community and surface-water oceanographic conditions. The highest numbers of coccoliths in the surface sediments are reached near the East Pacific Rise and close to the Subtropical Front, at the New Zealand Margin (>6x109 coccoliths/g of sediment). The dominant taxa are Emiliania huxleyi (including types A, B, B/C and C), Calcidiscus leptoporus, Gephyrocapsa spp. (including G. muellerae, G. oceanica and G. ericsonii), Umbellosphaera tenuis and Coccolithus braarudii. Despite the recognition of species morphotypes being hampered by carbonate dissolution at some locations, we observed that numbers generally decrease southward until almost a monospecific and sporadic record of E. huxleyi (types B/C and C) and C. leptoporus south of the Polar Front occurs. The recent coccolithophore distribution was compared to already published living coccolithophore distributions (i.e., water column samples collected at the same specific locations) showing a fairly similar pattern. Combining the numbers of cells/l and coccoliths/g of sediment, different coccolithophore assemblages were established coincidentwith areas bounded by the major surface oceanographic fronts, i.e. the Subantarctic Zone and the Polar Front Zone. Dataset Antarc* Antarctic Sea ice Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(174.525770,-80.089670,-44.408650,-65.410980) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Acanthoica sp. ANT-XXVI/2 Calcidiscus leptoporus Center for Marine Environmental Sciences Coccoliths Coccolithus braarudii DEPTH sediment/rock Elevation of event Emiliania huxleyi Event label Florisphaera profunda Gephyrocapsa ericsonii Gephyrocapsa muellerae Gephyrocapsa oceanica Gephyrocapsa spp. Helicosphaera carteri Latitude of event Longitude of event MARUM MUC MultiCorer Polarstern Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas PS75/034-1 PS75/049-1 PS75/051-2 PS75/063-2 PS75/065-2 PS75/068-1 PS75/070-1 PS75/072-3 PS75/074-1 PS75/076-1 PS75/080-2 PS75/082-2 PS75/084-1 PS75/085-2 PS75/086-1 PS75/090-6 PS75/091-6 PS75/092-1 PS75/094-3 PS75/095-6 PS75/097-5 PS75/099-1 PS75/100-1 PS75/104-2 PS75/105-1 PS75 BIPOMAC |
spellingShingle |
Acanthoica sp. ANT-XXVI/2 Calcidiscus leptoporus Center for Marine Environmental Sciences Coccoliths Coccolithus braarudii DEPTH sediment/rock Elevation of event Emiliania huxleyi Event label Florisphaera profunda Gephyrocapsa ericsonii Gephyrocapsa muellerae Gephyrocapsa oceanica Gephyrocapsa spp. Helicosphaera carteri Latitude of event Longitude of event MARUM MUC MultiCorer Polarstern Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas PS75/034-1 PS75/049-1 PS75/051-2 PS75/063-2 PS75/065-2 PS75/068-1 PS75/070-1 PS75/072-3 PS75/074-1 PS75/076-1 PS75/080-2 PS75/082-2 PS75/084-1 PS75/085-2 PS75/086-1 PS75/090-6 PS75/091-6 PS75/092-1 PS75/094-3 PS75/095-6 PS75/097-5 PS75/099-1 PS75/100-1 PS75/104-2 PS75/105-1 PS75 BIPOMAC Saavedra-Pellitero, Mariem Baumann, Karl-Heinz Living coccolith assemblages of surface sediment samples from the Pacific sector of the Southern Ocean |
topic_facet |
Acanthoica sp. ANT-XXVI/2 Calcidiscus leptoporus Center for Marine Environmental Sciences Coccoliths Coccolithus braarudii DEPTH sediment/rock Elevation of event Emiliania huxleyi Event label Florisphaera profunda Gephyrocapsa ericsonii Gephyrocapsa muellerae Gephyrocapsa oceanica Gephyrocapsa spp. Helicosphaera carteri Latitude of event Longitude of event MARUM MUC MultiCorer Polarstern Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas PS75/034-1 PS75/049-1 PS75/051-2 PS75/063-2 PS75/065-2 PS75/068-1 PS75/070-1 PS75/072-3 PS75/074-1 PS75/076-1 PS75/080-2 PS75/082-2 PS75/084-1 PS75/085-2 PS75/086-1 PS75/090-6 PS75/091-6 PS75/092-1 PS75/094-3 PS75/095-6 PS75/097-5 PS75/099-1 PS75/100-1 PS75/104-2 PS75/105-1 PS75 BIPOMAC |
description |
This study examined recent coccolith surface sediment assemblages across the Pacific sector of the Southern Ocean (from Punta Arenas, Chile toWellington, New Zealand). Twenty five stations located within 44.4°S to 65.4°S and 80.1°W to 174.5°E were selected in order to assess if and how the surface sediment assemblages reflect the present-day coccolithophore community and surface-water oceanographic conditions. The highest numbers of coccoliths in the surface sediments are reached near the East Pacific Rise and close to the Subtropical Front, at the New Zealand Margin (>6x109 coccoliths/g of sediment). The dominant taxa are Emiliania huxleyi (including types A, B, B/C and C), Calcidiscus leptoporus, Gephyrocapsa spp. (including G. muellerae, G. oceanica and G. ericsonii), Umbellosphaera tenuis and Coccolithus braarudii. Despite the recognition of species morphotypes being hampered by carbonate dissolution at some locations, we observed that numbers generally decrease southward until almost a monospecific and sporadic record of E. huxleyi (types B/C and C) and C. leptoporus south of the Polar Front occurs. The recent coccolithophore distribution was compared to already published living coccolithophore distributions (i.e., water column samples collected at the same specific locations) showing a fairly similar pattern. Combining the numbers of cells/l and coccoliths/g of sediment, different coccolithophore assemblages were established coincidentwith areas bounded by the major surface oceanographic fronts, i.e. the Subantarctic Zone and the Polar Front Zone. |
format |
Dataset |
author |
Saavedra-Pellitero, Mariem Baumann, Karl-Heinz |
author_facet |
Saavedra-Pellitero, Mariem Baumann, Karl-Heinz |
author_sort |
Saavedra-Pellitero, Mariem |
title |
Living coccolith assemblages of surface sediment samples from the Pacific sector of the Southern Ocean |
title_short |
Living coccolith assemblages of surface sediment samples from the Pacific sector of the Southern Ocean |
title_full |
Living coccolith assemblages of surface sediment samples from the Pacific sector of the Southern Ocean |
title_fullStr |
Living coccolith assemblages of surface sediment samples from the Pacific sector of the Southern Ocean |
title_full_unstemmed |
Living coccolith assemblages of surface sediment samples from the Pacific sector of the Southern Ocean |
title_sort |
living coccolith assemblages of surface sediment samples from the pacific sector of the southern ocean |
publisher |
PANGAEA |
publishDate |
2015 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.867497 https://doi.org/10.1594/PANGAEA.867497 |
op_coverage |
MEDIAN LATITUDE: -57.293886 * MEDIAN LONGITUDE: -155.050906 * SOUTH-BOUND LATITUDE: -65.410980 * WEST-BOUND LONGITUDE: 174.525770 * NORTH-BOUND LATITUDE: -44.408650 * EAST-BOUND LONGITUDE: -80.089670 * DATE/TIME START: 2009-11-29T17:12:00 * DATE/TIME END: 2010-01-24T01:33:00 * MINIMUM DEPTH, sediment/rock: 0 m * MAXIMUM DEPTH, sediment/rock: 0 m |
long_lat |
ENVELOPE(174.525770,-80.089670,-44.408650,-65.410980) |
genre |
Antarc* Antarctic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean |
op_source |
Supplement to: Saavedra-Pellitero, Mariem; Baumann, Karl-Heinz (2015): Comparison of living and surface sediment coccolithophore assemblages in the Pacific sector of the Southern Ocean. Micropaleontology, 61(6), 507-520, https://www.micropress.org/microaccess/micropaleontology/issue-321/article-1965 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.867497 https://doi.org/10.1594/PANGAEA.867497 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.867497 |
_version_ |
1810494545105780736 |