Temporal and spatial distributions of cold-water corals in the Drake Passage:insights from the last 35,000 years
Scleractinian corals have a global distribution ranging from shallow tropical seas to the depths of the Southern Ocean. Although this distribution is indicative of the corals having a tolerance to a wide spectrum of environmental conditions, individual species seem to be restricted to a much narrowe...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2014
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/temporal-and-spatial-distributions-of-coldwater-corals-in-the-drake-passage(e31c9f82-4062-4465-b084-10f6dafe3825).html https://doi.org/10.1016/j.dsr2.2013.06.008 |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/e31c9f82-4062-4465-b084-10f6dafe3825 2024-06-23T07:47:32+00:00 Temporal and spatial distributions of cold-water corals in the Drake Passage:insights from the last 35,000 years Margolin, Andrew R. Robinson, Laura F. Burke, Andrea Waller, Rhian G. Scanlon, Kathryn M. Roberts, Mark L. Auro, Maureen E. van de Flierdt, Tina 2014-01 https://research-portal.st-andrews.ac.uk/en/researchoutput/temporal-and-spatial-distributions-of-coldwater-corals-in-the-drake-passage(e31c9f82-4062-4465-b084-10f6dafe3825).html https://doi.org/10.1016/j.dsr2.2013.06.008 eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/temporal-and-spatial-distributions-of-coldwater-corals-in-the-drake-passage(e31c9f82-4062-4465-b084-10f6dafe3825).html info:eu-repo/semantics/closedAccess Margolin , A R , Robinson , L F , Burke , A , Waller , R G , Scanlon , K M , Roberts , M L , Auro , M E & van de Flierdt , T 2014 , ' Temporal and spatial distributions of cold-water corals in the Drake Passage : insights from the last 35,000 years ' , Deep Sea Research Part II: Topical Studies in Oceanography , vol. 99 , pp. 237-248 . https://doi.org/10.1016/j.dsr2.2013.06.008 Deep-sea coral Cold-water coral Paleoceanography Radiocarbon Drake Passage Southern Ocean Coral biogeography DEEP-SEA CORALS LOPHELIA-PERTUSA SCLERACTINIA ATMOSPHERIC CO2 CONCENTRATIONS ANTARCTIC CIRCUMPOLAR CURRENT RADIOCARBON AGE CALIBRATION CAL KYR BP SOUTHERN-OCEAN NORTH-ATLANTIC GLACIAL MAXIMUM NE ATLANTIC article 2014 ftunstandrewcris https://doi.org/10.1016/j.dsr2.2013.06.008 2024-06-13T00:43:04Z Scleractinian corals have a global distribution ranging from shallow tropical seas to the depths of the Southern Ocean. Although this distribution is indicative of the corals having a tolerance to a wide spectrum of environmental conditions, individual species seem to be restricted to a much narrower range of ecosystem variables. One way to ascertain the tolerances of corals, with particular focus on the potential impacts of changing climate, is to reconstruct their growth history across a range of environmental regimes. This study examines the spatial and temporal distribution of the solitary scleractinian corals Desmophyllum dianthus, Gardineria antarctica, Balanophyllia malouinensis, Caryophyllia spp. and Flabellum spp. from five sites in the Drake Passage which cross the major frontal zones. A rapid reconnaissance radiocarbon method was used to date more than 850 individual corals. Coupled with U-Th dating, an age range of present day back to more than 100 thousand years was established for corals in the region. Within this age range there are distinct changes in the temporal and spatial distributions of these corals, both with depth and latitude, and on millennial timescales. Two major patterns that emerge are: (1) D. dianthus populations show clear variability in their occurrence through time depending on the latitudinal position within the Drake Passage. North of the Subantarctic Front, D. dianthus first appears in the late deglaciation (similar to 17,000 years ago) and persists to today. South of the Polar Front, in contrast, early deglacial periods, with a few modern occurrences. A seamount site between the two fronts exhibits characteristics similar to both the northern and southern sites. This shift across the frontal zones within one species cannot yet be fully explained, but it is likely to be linked to changes in surface productivity, subsurface oxygen concentrations, and carbonate saturation state. (2) at locations where multiple genera were dated, differences in age and depth distribution of the ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Drake Passage Lophelia pertusa North Atlantic Southern Ocean University of St Andrews: Research Portal Antarctic Drake Passage Southern Ocean Deep Sea Research Part II: Topical Studies in Oceanography 99 237 248 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Deep-sea coral Cold-water coral Paleoceanography Radiocarbon Drake Passage Southern Ocean Coral biogeography DEEP-SEA CORALS LOPHELIA-PERTUSA SCLERACTINIA ATMOSPHERIC CO2 CONCENTRATIONS ANTARCTIC CIRCUMPOLAR CURRENT RADIOCARBON AGE CALIBRATION CAL KYR BP SOUTHERN-OCEAN NORTH-ATLANTIC GLACIAL MAXIMUM NE ATLANTIC |
spellingShingle |
Deep-sea coral Cold-water coral Paleoceanography Radiocarbon Drake Passage Southern Ocean Coral biogeography DEEP-SEA CORALS LOPHELIA-PERTUSA SCLERACTINIA ATMOSPHERIC CO2 CONCENTRATIONS ANTARCTIC CIRCUMPOLAR CURRENT RADIOCARBON AGE CALIBRATION CAL KYR BP SOUTHERN-OCEAN NORTH-ATLANTIC GLACIAL MAXIMUM NE ATLANTIC Margolin, Andrew R. Robinson, Laura F. Burke, Andrea Waller, Rhian G. Scanlon, Kathryn M. Roberts, Mark L. Auro, Maureen E. van de Flierdt, Tina Temporal and spatial distributions of cold-water corals in the Drake Passage:insights from the last 35,000 years |
topic_facet |
Deep-sea coral Cold-water coral Paleoceanography Radiocarbon Drake Passage Southern Ocean Coral biogeography DEEP-SEA CORALS LOPHELIA-PERTUSA SCLERACTINIA ATMOSPHERIC CO2 CONCENTRATIONS ANTARCTIC CIRCUMPOLAR CURRENT RADIOCARBON AGE CALIBRATION CAL KYR BP SOUTHERN-OCEAN NORTH-ATLANTIC GLACIAL MAXIMUM NE ATLANTIC |
description |
Scleractinian corals have a global distribution ranging from shallow tropical seas to the depths of the Southern Ocean. Although this distribution is indicative of the corals having a tolerance to a wide spectrum of environmental conditions, individual species seem to be restricted to a much narrower range of ecosystem variables. One way to ascertain the tolerances of corals, with particular focus on the potential impacts of changing climate, is to reconstruct their growth history across a range of environmental regimes. This study examines the spatial and temporal distribution of the solitary scleractinian corals Desmophyllum dianthus, Gardineria antarctica, Balanophyllia malouinensis, Caryophyllia spp. and Flabellum spp. from five sites in the Drake Passage which cross the major frontal zones. A rapid reconnaissance radiocarbon method was used to date more than 850 individual corals. Coupled with U-Th dating, an age range of present day back to more than 100 thousand years was established for corals in the region. Within this age range there are distinct changes in the temporal and spatial distributions of these corals, both with depth and latitude, and on millennial timescales. Two major patterns that emerge are: (1) D. dianthus populations show clear variability in their occurrence through time depending on the latitudinal position within the Drake Passage. North of the Subantarctic Front, D. dianthus first appears in the late deglaciation (similar to 17,000 years ago) and persists to today. South of the Polar Front, in contrast, early deglacial periods, with a few modern occurrences. A seamount site between the two fronts exhibits characteristics similar to both the northern and southern sites. This shift across the frontal zones within one species cannot yet be fully explained, but it is likely to be linked to changes in surface productivity, subsurface oxygen concentrations, and carbonate saturation state. (2) at locations where multiple genera were dated, differences in age and depth distribution of the ... |
format |
Article in Journal/Newspaper |
author |
Margolin, Andrew R. Robinson, Laura F. Burke, Andrea Waller, Rhian G. Scanlon, Kathryn M. Roberts, Mark L. Auro, Maureen E. van de Flierdt, Tina |
author_facet |
Margolin, Andrew R. Robinson, Laura F. Burke, Andrea Waller, Rhian G. Scanlon, Kathryn M. Roberts, Mark L. Auro, Maureen E. van de Flierdt, Tina |
author_sort |
Margolin, Andrew R. |
title |
Temporal and spatial distributions of cold-water corals in the Drake Passage:insights from the last 35,000 years |
title_short |
Temporal and spatial distributions of cold-water corals in the Drake Passage:insights from the last 35,000 years |
title_full |
Temporal and spatial distributions of cold-water corals in the Drake Passage:insights from the last 35,000 years |
title_fullStr |
Temporal and spatial distributions of cold-water corals in the Drake Passage:insights from the last 35,000 years |
title_full_unstemmed |
Temporal and spatial distributions of cold-water corals in the Drake Passage:insights from the last 35,000 years |
title_sort |
temporal and spatial distributions of cold-water corals in the drake passage:insights from the last 35,000 years |
publishDate |
2014 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/temporal-and-spatial-distributions-of-coldwater-corals-in-the-drake-passage(e31c9f82-4062-4465-b084-10f6dafe3825).html https://doi.org/10.1016/j.dsr2.2013.06.008 |
geographic |
Antarctic Drake Passage Southern Ocean |
geographic_facet |
Antarctic Drake Passage Southern Ocean |
genre |
Antarc* Antarctic Antarctica Drake Passage Lophelia pertusa North Atlantic Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Drake Passage Lophelia pertusa North Atlantic Southern Ocean |
op_source |
Margolin , A R , Robinson , L F , Burke , A , Waller , R G , Scanlon , K M , Roberts , M L , Auro , M E & van de Flierdt , T 2014 , ' Temporal and spatial distributions of cold-water corals in the Drake Passage : insights from the last 35,000 years ' , Deep Sea Research Part II: Topical Studies in Oceanography , vol. 99 , pp. 237-248 . https://doi.org/10.1016/j.dsr2.2013.06.008 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/temporal-and-spatial-distributions-of-coldwater-corals-in-the-drake-passage(e31c9f82-4062-4465-b084-10f6dafe3825).html |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.dsr2.2013.06.008 |
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Deep Sea Research Part II: Topical Studies in Oceanography |
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