Observations on the relationship between the Antarctic coastal diatoms Thalassiosira antarctica Comber and Porosira glacialis (Grunow) Jørgensen and sea ice concentrations during the late Quaternary
The available ecological and palaeoecological information for two sea ice-related marine diatoms (Bacillariophyceae), Thalassiosira antarctica Comber and Porosira glacialis (Grunow) Jørgensen, suggests that these two species have similar sea surface temperature (SST), sea surface salinity (SSS) and...
Published in: | Marine Micropaleontology |
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Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
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Elsevier
2009
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Subjects: | |
Online Access: | https://orca.cardiff.ac.uk/id/eprint/9461/ https://doi.org/10.1016/j.marmicro.2009.06.005 |
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ftunivcardiff:oai:https://orca.cardiff.ac.uk:9461 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Cardiff University: ORCA (Online Research @ Cardiff) |
op_collection_id |
ftunivcardiff |
language |
unknown |
topic |
GC Oceanography QE Geology |
spellingShingle |
GC Oceanography QE Geology Pike, Jennifer Crosta, Xavier Maddison, Eleanor Jane Stickley, Catherine Emma Denis, Delphine Barbara, Loïc Renssen, Hans Observations on the relationship between the Antarctic coastal diatoms Thalassiosira antarctica Comber and Porosira glacialis (Grunow) Jørgensen and sea ice concentrations during the late Quaternary |
topic_facet |
GC Oceanography QE Geology |
description |
The available ecological and palaeoecological information for two sea ice-related marine diatoms (Bacillariophyceae), Thalassiosira antarctica Comber and Porosira glacialis (Grunow) Jørgensen, suggests that these two species have similar sea surface temperature (SST), sea surface salinity (SSS) and sea ice proximity preferences. From phytoplankton observations, both are described as summer or autumn bloom species, commonly found in low SST waters associated with sea ice, although rarely within the ice. Both species form resting spores (RS) as irradiance decreases, SST falls and SSS increases in response to freezing ice in autumn. Recent work analysing late Quaternary seasonally laminated diatom ooze from coastal Antarctic sites has revealed that sub-laminae dominated either by T. antarctica RS, or by P. glacialis RS, are nearly always deposited as the last sediment increment of the year, interpreted as representing autumn flux. In this study, we focus on sites from the East Antarctic margin and show that there is a spatial and temporal separation in whether T. antarctica RS or P. glacialis RS form the autumnal sub-laminae. For instance, in deglacial sediments from the Mertz Ninnis Trough (George V Coast) P. glacialis RS form the sub-laminae whereas in similar age sediments from Iceberg Alley (Mac.Robertson Shelf) T. antarctica RS dominate the autumn sub-lamina. In the Dumont d'Urville Trough (Adélie Land), mid-Holocene (Hypsithermal warm period) autumnal sub-laminae are dominated by T. antarctica RS whereas late Holocene (Neoglacial cool period) sub-laminae are dominated by P. glacialis RS. These observations from late Quaternary seasonally laminated sediments would appear to indicate that P. glacialis prefers slightly cooler ocean–climate conditions than T. antarctica. We test this relationship against two down-core Holocene quantitative diatom abundance records from Dumont d'Urville Trough and Svenner Channel (Princess Elizabeth Land) and compare the results with SST and sea ice concentration results of an ... |
format |
Article in Journal/Newspaper |
author |
Pike, Jennifer Crosta, Xavier Maddison, Eleanor Jane Stickley, Catherine Emma Denis, Delphine Barbara, Loïc Renssen, Hans |
author_facet |
Pike, Jennifer Crosta, Xavier Maddison, Eleanor Jane Stickley, Catherine Emma Denis, Delphine Barbara, Loïc Renssen, Hans |
author_sort |
Pike, Jennifer |
title |
Observations on the relationship between the Antarctic coastal diatoms Thalassiosira antarctica Comber and Porosira glacialis (Grunow) Jørgensen and sea ice concentrations during the late Quaternary |
title_short |
Observations on the relationship between the Antarctic coastal diatoms Thalassiosira antarctica Comber and Porosira glacialis (Grunow) Jørgensen and sea ice concentrations during the late Quaternary |
title_full |
Observations on the relationship between the Antarctic coastal diatoms Thalassiosira antarctica Comber and Porosira glacialis (Grunow) Jørgensen and sea ice concentrations during the late Quaternary |
title_fullStr |
Observations on the relationship between the Antarctic coastal diatoms Thalassiosira antarctica Comber and Porosira glacialis (Grunow) Jørgensen and sea ice concentrations during the late Quaternary |
title_full_unstemmed |
Observations on the relationship between the Antarctic coastal diatoms Thalassiosira antarctica Comber and Porosira glacialis (Grunow) Jørgensen and sea ice concentrations during the late Quaternary |
title_sort |
observations on the relationship between the antarctic coastal diatoms thalassiosira antarctica comber and porosira glacialis (grunow) jørgensen and sea ice concentrations during the late quaternary |
publisher |
Elsevier |
publishDate |
2009 |
url |
https://orca.cardiff.ac.uk/id/eprint/9461/ https://doi.org/10.1016/j.marmicro.2009.06.005 |
long_lat |
ENVELOPE(140.017,140.017,-66.667,-66.667) ENVELOPE(136.000,136.000,-65.500,-65.500) ENVELOPE(140.013,140.013,-66.667,-66.667) ENVELOPE(147.000,147.000,-69.000,-69.000) ENVELOPE(146.000,146.000,-67.417,-67.417) ENVELOPE(80.367,80.367,-68.500,-68.500) ENVELOPE(76.833,76.833,-69.083,-69.083) ENVELOPE(76.342,76.342,-68.858,-68.858) |
geographic |
Antarctic Dumont d'Urville Dumont d'Urville Trough Dumont-d'Urville George V Coast Mertz-Ninnis Trough Princess Elizabeth Land Svenner Svenner Channel The Antarctic |
geographic_facet |
Antarctic Dumont d'Urville Dumont d'Urville Trough Dumont-d'Urville George V Coast Mertz-Ninnis Trough Princess Elizabeth Land Svenner Svenner Channel The Antarctic |
genre |
Antarc* Antarctic Antarctica Iceberg* Princess Elizabeth Land Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Iceberg* Princess Elizabeth Land Sea ice |
op_relation |
Pike, Jennifer https://orca.cardiff.ac.uk/view/cardiffauthors/A0179070.html orcid:0000-0001-9415-6003 orcid:0000-0001-9415-6003, Crosta, Xavier, Maddison, Eleanor Jane https://orca.cardiff.ac.uk/view/cardiffauthors/A056584C.html, Stickley, Catherine Emma https://orca.cardiff.ac.uk/view/cardiffauthors/A0410992.html, Denis, Delphine, Barbara, Loïc and Renssen, Hans 2009. Observations on the relationship between the Antarctic coastal diatoms Thalassiosira antarctica Comber and Porosira glacialis (Grunow) Jørgensen and sea ice concentrations during the late Quaternary. Marine Micropaleontology 73 (1-2) , pp. 14-25. 10.1016/j.marmicro.2009.06.005 https://doi.org/10.1016/j.marmicro.2009.06.005 doi:10.1016/j.marmicro.2009.06.005 |
op_doi |
https://doi.org/10.1016/j.marmicro.2009.06.005 |
container_title |
Marine Micropaleontology |
container_volume |
73 |
container_issue |
1-2 |
container_start_page |
14 |
op_container_end_page |
25 |
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1766125800727248896 |
spelling |
ftunivcardiff:oai:https://orca.cardiff.ac.uk:9461 2023-05-15T13:39:53+02:00 Observations on the relationship between the Antarctic coastal diatoms Thalassiosira antarctica Comber and Porosira glacialis (Grunow) Jørgensen and sea ice concentrations during the late Quaternary Pike, Jennifer Crosta, Xavier Maddison, Eleanor Jane Stickley, Catherine Emma Denis, Delphine Barbara, Loïc Renssen, Hans 2009 https://orca.cardiff.ac.uk/id/eprint/9461/ https://doi.org/10.1016/j.marmicro.2009.06.005 unknown Elsevier Pike, Jennifer https://orca.cardiff.ac.uk/view/cardiffauthors/A0179070.html orcid:0000-0001-9415-6003 orcid:0000-0001-9415-6003, Crosta, Xavier, Maddison, Eleanor Jane https://orca.cardiff.ac.uk/view/cardiffauthors/A056584C.html, Stickley, Catherine Emma https://orca.cardiff.ac.uk/view/cardiffauthors/A0410992.html, Denis, Delphine, Barbara, Loïc and Renssen, Hans 2009. Observations on the relationship between the Antarctic coastal diatoms Thalassiosira antarctica Comber and Porosira glacialis (Grunow) Jørgensen and sea ice concentrations during the late Quaternary. Marine Micropaleontology 73 (1-2) , pp. 14-25. 10.1016/j.marmicro.2009.06.005 https://doi.org/10.1016/j.marmicro.2009.06.005 doi:10.1016/j.marmicro.2009.06.005 GC Oceanography QE Geology Article PeerReviewed 2009 ftunivcardiff https://doi.org/10.1016/j.marmicro.2009.06.005 2022-10-20T22:34:01Z The available ecological and palaeoecological information for two sea ice-related marine diatoms (Bacillariophyceae), Thalassiosira antarctica Comber and Porosira glacialis (Grunow) Jørgensen, suggests that these two species have similar sea surface temperature (SST), sea surface salinity (SSS) and sea ice proximity preferences. From phytoplankton observations, both are described as summer or autumn bloom species, commonly found in low SST waters associated with sea ice, although rarely within the ice. Both species form resting spores (RS) as irradiance decreases, SST falls and SSS increases in response to freezing ice in autumn. Recent work analysing late Quaternary seasonally laminated diatom ooze from coastal Antarctic sites has revealed that sub-laminae dominated either by T. antarctica RS, or by P. glacialis RS, are nearly always deposited as the last sediment increment of the year, interpreted as representing autumn flux. In this study, we focus on sites from the East Antarctic margin and show that there is a spatial and temporal separation in whether T. antarctica RS or P. glacialis RS form the autumnal sub-laminae. For instance, in deglacial sediments from the Mertz Ninnis Trough (George V Coast) P. glacialis RS form the sub-laminae whereas in similar age sediments from Iceberg Alley (Mac.Robertson Shelf) T. antarctica RS dominate the autumn sub-lamina. In the Dumont d'Urville Trough (Adélie Land), mid-Holocene (Hypsithermal warm period) autumnal sub-laminae are dominated by T. antarctica RS whereas late Holocene (Neoglacial cool period) sub-laminae are dominated by P. glacialis RS. These observations from late Quaternary seasonally laminated sediments would appear to indicate that P. glacialis prefers slightly cooler ocean–climate conditions than T. antarctica. We test this relationship against two down-core Holocene quantitative diatom abundance records from Dumont d'Urville Trough and Svenner Channel (Princess Elizabeth Land) and compare the results with SST and sea ice concentration results of an ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Iceberg* Princess Elizabeth Land Sea ice Cardiff University: ORCA (Online Research @ Cardiff) Antarctic Dumont d'Urville ENVELOPE(140.017,140.017,-66.667,-66.667) Dumont d'Urville Trough ENVELOPE(136.000,136.000,-65.500,-65.500) Dumont-d'Urville ENVELOPE(140.013,140.013,-66.667,-66.667) George V Coast ENVELOPE(147.000,147.000,-69.000,-69.000) Mertz-Ninnis Trough ENVELOPE(146.000,146.000,-67.417,-67.417) Princess Elizabeth Land ENVELOPE(80.367,80.367,-68.500,-68.500) Svenner ENVELOPE(76.833,76.833,-69.083,-69.083) Svenner Channel ENVELOPE(76.342,76.342,-68.858,-68.858) The Antarctic Marine Micropaleontology 73 1-2 14 25 |