Radiocarbon dating on cold-water corals, grain size, Corg, and benthic foraminfera assemblage of two sediment cores from the Ionian Sea
Continuous sedimentary records from an eastern Mediterranean cold-water coral ecosystem thriving in intermediate water depths (~600 m) reveal a temporary extinction of cold-water corals during the Early to Mid Holocene from 11.4-5.9 cal kyr BP. Benthic foraminiferal assemblage analysis shows low-oxy...
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.784414 https://doi.org/10.1594/PANGAEA.784414 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.784414 2024-09-15T18:28:17+00:00 Radiocarbon dating on cold-water corals, grain size, Corg, and benthic foraminfera assemblage of two sediment cores from the Ionian Sea Fink, Hiske G Wienberg, Claudia Hebbeln, Dierk McGregor, Helen V Schmiedl, Gerhard Taviani, Marco Freiwald, André MEDIAN LATITUDE: 39.556200 * MEDIAN LONGITUDE: 18.455800 * SOUTH-BOUND LATITUDE: 39.555200 * WEST-BOUND LONGITUDE: 18.455600 * NORTH-BOUND LATITUDE: 39.557200 * EAST-BOUND LONGITUDE: 18.456000 * DATE/TIME START: 2006-10-11T16:50:00 * DATE/TIME END: 2006-10-11T17:40:00 2012 application/zip, 5 datasets https://doi.pangaea.de/10.1594/PANGAEA.784414 https://doi.org/10.1594/PANGAEA.784414 en eng PANGAEA Fink, Hiske G; Wienberg, Claudia; Hebbeln, Dierk; McGregor, Helen V; Schmiedl, Gerhard; Taviani, Marco; Freiwald, André (2012): Oxygen control on Holocene cold-water coral development in the eastern Mediterranean Sea. Deep Sea Research Part I: Oceanographic Research Papers, 62, 89-96, https://doi.org/10.1016/j.dsr.2011.12.013 https://doi.pangaea.de/10.1594/PANGAEA.784414 https://doi.org/10.1594/PANGAEA.784414 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Center for Marine Environmental Sciences GeoB11185-1 GeoB11186-1 Gravity corer (Kiel type) HERMIONE Hotspot Ecosystem Research and Mans Impact On European Seas M70/1 M70/1_730 M70/1_731 MARUM Meteor (1986) Santa Maria di Leuca SL dataset publication series 2012 ftpangaea https://doi.org/10.1594/PANGAEA.78441410.1016/j.dsr.2011.12.013 2024-07-24T02:31:21Z Continuous sedimentary records from an eastern Mediterranean cold-water coral ecosystem thriving in intermediate water depths (~600 m) reveal a temporary extinction of cold-water corals during the Early to Mid Holocene from 11.4-5.9 cal kyr BP. Benthic foraminiferal assemblage analysis shows low-oxygen conditions of 2 ml l**-1 during the same period, compared to bottom-water oxygen values of 4-5 ml l**-1 before and after the coral-free interval. The timing of the corals' demise coincides with the sapropel S1 event, during which the deep eastern Mediterranean basin turned anoxic. Our results show that during the sapropel S1 event low oxygen conditions extended to the rather shallow depths of our study site in the Ionian Sea and caused the cold-water corals temporary extinction. This first evidence for the sensitivity of cold-water corals to low oceanic oxygen contents suggests that the projected expansion of tropical oxygen minimum zones resulting from global change will threaten cold-water coral ecosystems in low latitudes in the same way that ocean acidification will do in the higher latitudes. Other/Unknown Material Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(18.455600,18.456000,39.557200,39.555200) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Center for Marine Environmental Sciences GeoB11185-1 GeoB11186-1 Gravity corer (Kiel type) HERMIONE Hotspot Ecosystem Research and Mans Impact On European Seas M70/1 M70/1_730 M70/1_731 MARUM Meteor (1986) Santa Maria di Leuca SL |
spellingShingle |
Center for Marine Environmental Sciences GeoB11185-1 GeoB11186-1 Gravity corer (Kiel type) HERMIONE Hotspot Ecosystem Research and Mans Impact On European Seas M70/1 M70/1_730 M70/1_731 MARUM Meteor (1986) Santa Maria di Leuca SL Fink, Hiske G Wienberg, Claudia Hebbeln, Dierk McGregor, Helen V Schmiedl, Gerhard Taviani, Marco Freiwald, André Radiocarbon dating on cold-water corals, grain size, Corg, and benthic foraminfera assemblage of two sediment cores from the Ionian Sea |
topic_facet |
Center for Marine Environmental Sciences GeoB11185-1 GeoB11186-1 Gravity corer (Kiel type) HERMIONE Hotspot Ecosystem Research and Mans Impact On European Seas M70/1 M70/1_730 M70/1_731 MARUM Meteor (1986) Santa Maria di Leuca SL |
description |
Continuous sedimentary records from an eastern Mediterranean cold-water coral ecosystem thriving in intermediate water depths (~600 m) reveal a temporary extinction of cold-water corals during the Early to Mid Holocene from 11.4-5.9 cal kyr BP. Benthic foraminiferal assemblage analysis shows low-oxygen conditions of 2 ml l**-1 during the same period, compared to bottom-water oxygen values of 4-5 ml l**-1 before and after the coral-free interval. The timing of the corals' demise coincides with the sapropel S1 event, during which the deep eastern Mediterranean basin turned anoxic. Our results show that during the sapropel S1 event low oxygen conditions extended to the rather shallow depths of our study site in the Ionian Sea and caused the cold-water corals temporary extinction. This first evidence for the sensitivity of cold-water corals to low oceanic oxygen contents suggests that the projected expansion of tropical oxygen minimum zones resulting from global change will threaten cold-water coral ecosystems in low latitudes in the same way that ocean acidification will do in the higher latitudes. |
format |
Other/Unknown Material |
author |
Fink, Hiske G Wienberg, Claudia Hebbeln, Dierk McGregor, Helen V Schmiedl, Gerhard Taviani, Marco Freiwald, André |
author_facet |
Fink, Hiske G Wienberg, Claudia Hebbeln, Dierk McGregor, Helen V Schmiedl, Gerhard Taviani, Marco Freiwald, André |
author_sort |
Fink, Hiske G |
title |
Radiocarbon dating on cold-water corals, grain size, Corg, and benthic foraminfera assemblage of two sediment cores from the Ionian Sea |
title_short |
Radiocarbon dating on cold-water corals, grain size, Corg, and benthic foraminfera assemblage of two sediment cores from the Ionian Sea |
title_full |
Radiocarbon dating on cold-water corals, grain size, Corg, and benthic foraminfera assemblage of two sediment cores from the Ionian Sea |
title_fullStr |
Radiocarbon dating on cold-water corals, grain size, Corg, and benthic foraminfera assemblage of two sediment cores from the Ionian Sea |
title_full_unstemmed |
Radiocarbon dating on cold-water corals, grain size, Corg, and benthic foraminfera assemblage of two sediment cores from the Ionian Sea |
title_sort |
radiocarbon dating on cold-water corals, grain size, corg, and benthic foraminfera assemblage of two sediment cores from the ionian sea |
publisher |
PANGAEA |
publishDate |
2012 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.784414 https://doi.org/10.1594/PANGAEA.784414 |
op_coverage |
MEDIAN LATITUDE: 39.556200 * MEDIAN LONGITUDE: 18.455800 * SOUTH-BOUND LATITUDE: 39.555200 * WEST-BOUND LONGITUDE: 18.455600 * NORTH-BOUND LATITUDE: 39.557200 * EAST-BOUND LONGITUDE: 18.456000 * DATE/TIME START: 2006-10-11T16:50:00 * DATE/TIME END: 2006-10-11T17:40:00 |
long_lat |
ENVELOPE(18.455600,18.456000,39.557200,39.555200) |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
Fink, Hiske G; Wienberg, Claudia; Hebbeln, Dierk; McGregor, Helen V; Schmiedl, Gerhard; Taviani, Marco; Freiwald, André (2012): Oxygen control on Holocene cold-water coral development in the eastern Mediterranean Sea. Deep Sea Research Part I: Oceanographic Research Papers, 62, 89-96, https://doi.org/10.1016/j.dsr.2011.12.013 https://doi.pangaea.de/10.1594/PANGAEA.784414 https://doi.org/10.1594/PANGAEA.784414 |
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.78441410.1016/j.dsr.2011.12.013 |
_version_ |
1810469626914537472 |