Benthic foraminiferal faunas associated with cold‐water coral environments in the North Atlantic realm
Abstract Surface benthic foraminiferal assemblages associated with cold‐water coral mounds and reefs from the Irish margin and Norwegian shelf (North‐east Atlantic) are for the first time compared quantitatively. Results indicate that the considered sites share a common assemblage, dominated by elev...
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ftdoajarticles:oai:doaj.org/article:f99626ee8ef9499fbaaa069720067682 2023-05-15T17:31:35+02:00 Benthic foraminiferal faunas associated with cold‐water coral environments in the North Atlantic realm Robin Fentimen Gerhard Schmiedl Andres Rüggeberg Anneleen Foubert 2021-06-01T00:00:00Z https://doi.org/10.1002/dep2.149 https://doaj.org/article/f99626ee8ef9499fbaaa069720067682 EN eng Wiley https://doi.org/10.1002/dep2.149 https://doaj.org/toc/2055-4877 2055-4877 doi:10.1002/dep2.149 https://doaj.org/article/f99626ee8ef9499fbaaa069720067682 The Depositional Record, Vol 7, Iss 2, Pp 223-255 (2021) benthic foraminiferal assemblages cold‐water coral mound cold‐water coral reef Mediterranean Sea North Atlantic Geology QE1-996.5 article 2021 ftdoajarticles https://doi.org/10.1002/dep2.149 2022-12-31T13:04:38Z Abstract Surface benthic foraminiferal assemblages associated with cold‐water coral mounds and reefs from the Irish margin and Norwegian shelf (North‐east Atlantic) are for the first time compared quantitatively. Results indicate that the considered sites share a common assemblage, dominated by elevated epibenthic and distinct infaunal species. This surface assemblage is typical of environments that are subject to strong bottom‐water turbulence with enhanced food availability. It provides a benchmark for comparison with fossil benthic foraminiferal assemblages from past cold‐water coral environments. Similar to macrofaunal and megafaunal communities, surface benthic foraminiferal diversity is higher on reefs and mounds than in surrounding off‐mound/off‐reef sediments. Benthic foraminiferal diversity is highest within the living coral macrohabitat, possibly as a result of enhanced availability and variety of food sources, and ecological niche separation. Indeed, living coral generally thrives on the summits or flanks of reefs and mounds where food availability is most important. The second part discusses the use of fossil benthic foraminiferal assemblages as palaeoceanographic proxies from past cold‐water coral environments. The overview of previous observations demonstrates that benthic foraminifera are valuable tools to reconstruct past bottom‐water oxygenation, bottom‐water currents and surface productivity, all of which are key environmental variables controlling cold‐water coral growth. Moreover, the advantages of a detailed investigation of benthic foraminiferal assemblages within cold‐water coral environments are compared to other palaeoceanographic proxies. This study highlights that benthic foraminiferal assemblages are an often overlooked proxy within cold‐water coral environments, despite yielding valuable information. Article in Journal/Newspaper North Atlantic North East Atlantic Directory of Open Access Journals: DOAJ Articles The Depositional Record 7 2 223 255 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
benthic foraminiferal assemblages cold‐water coral mound cold‐water coral reef Mediterranean Sea North Atlantic Geology QE1-996.5 |
spellingShingle |
benthic foraminiferal assemblages cold‐water coral mound cold‐water coral reef Mediterranean Sea North Atlantic Geology QE1-996.5 Robin Fentimen Gerhard Schmiedl Andres Rüggeberg Anneleen Foubert Benthic foraminiferal faunas associated with cold‐water coral environments in the North Atlantic realm |
topic_facet |
benthic foraminiferal assemblages cold‐water coral mound cold‐water coral reef Mediterranean Sea North Atlantic Geology QE1-996.5 |
description |
Abstract Surface benthic foraminiferal assemblages associated with cold‐water coral mounds and reefs from the Irish margin and Norwegian shelf (North‐east Atlantic) are for the first time compared quantitatively. Results indicate that the considered sites share a common assemblage, dominated by elevated epibenthic and distinct infaunal species. This surface assemblage is typical of environments that are subject to strong bottom‐water turbulence with enhanced food availability. It provides a benchmark for comparison with fossil benthic foraminiferal assemblages from past cold‐water coral environments. Similar to macrofaunal and megafaunal communities, surface benthic foraminiferal diversity is higher on reefs and mounds than in surrounding off‐mound/off‐reef sediments. Benthic foraminiferal diversity is highest within the living coral macrohabitat, possibly as a result of enhanced availability and variety of food sources, and ecological niche separation. Indeed, living coral generally thrives on the summits or flanks of reefs and mounds where food availability is most important. The second part discusses the use of fossil benthic foraminiferal assemblages as palaeoceanographic proxies from past cold‐water coral environments. The overview of previous observations demonstrates that benthic foraminifera are valuable tools to reconstruct past bottom‐water oxygenation, bottom‐water currents and surface productivity, all of which are key environmental variables controlling cold‐water coral growth. Moreover, the advantages of a detailed investigation of benthic foraminiferal assemblages within cold‐water coral environments are compared to other palaeoceanographic proxies. This study highlights that benthic foraminiferal assemblages are an often overlooked proxy within cold‐water coral environments, despite yielding valuable information. |
format |
Article in Journal/Newspaper |
author |
Robin Fentimen Gerhard Schmiedl Andres Rüggeberg Anneleen Foubert |
author_facet |
Robin Fentimen Gerhard Schmiedl Andres Rüggeberg Anneleen Foubert |
author_sort |
Robin Fentimen |
title |
Benthic foraminiferal faunas associated with cold‐water coral environments in the North Atlantic realm |
title_short |
Benthic foraminiferal faunas associated with cold‐water coral environments in the North Atlantic realm |
title_full |
Benthic foraminiferal faunas associated with cold‐water coral environments in the North Atlantic realm |
title_fullStr |
Benthic foraminiferal faunas associated with cold‐water coral environments in the North Atlantic realm |
title_full_unstemmed |
Benthic foraminiferal faunas associated with cold‐water coral environments in the North Atlantic realm |
title_sort |
benthic foraminiferal faunas associated with cold‐water coral environments in the north atlantic realm |
publisher |
Wiley |
publishDate |
2021 |
url |
https://doi.org/10.1002/dep2.149 https://doaj.org/article/f99626ee8ef9499fbaaa069720067682 |
genre |
North Atlantic North East Atlantic |
genre_facet |
North Atlantic North East Atlantic |
op_source |
The Depositional Record, Vol 7, Iss 2, Pp 223-255 (2021) |
op_relation |
https://doi.org/10.1002/dep2.149 https://doaj.org/toc/2055-4877 2055-4877 doi:10.1002/dep2.149 https://doaj.org/article/f99626ee8ef9499fbaaa069720067682 |
op_doi |
https://doi.org/10.1002/dep2.149 |
container_title |
The Depositional Record |
container_volume |
7 |
container_issue |
2 |
container_start_page |
223 |
op_container_end_page |
255 |
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1766129233740955648 |