The Moira Mounds, small cold-water coral banks in the Porcupine Seabight, NE Atlantic: Part A an early stage growth phase for future coral carbonate mounds?
This paper presents a comprehensive overview of the Moira Mounds in the Porcupine Seabight, combining a review of currently published material with new data and interpretations. The Moira Mounds are circular to ovoid-shaped individual or clustered coral banks (referred to as "scleractinian spac...
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2011
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Online Access: | https://archimer.ifremer.fr/doc/00035/14633/12050.pdf https://doi.org/10.1016/j.margeo.2010.08.006 https://archimer.ifremer.fr/doc/00035/14633/ |
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ftarchimer:oai:archimer.ifremer.fr:14633 2023-05-15T17:08:46+02:00 The Moira Mounds, small cold-water coral banks in the Porcupine Seabight, NE Atlantic: Part A an early stage growth phase for future coral carbonate mounds? Wheeler, A. J. Kozachenko, M. Henry, L. -a. Foubert, A. De Haas, H. Huvenne, V. A. I. Masson, D.c. Olu, Karine 2011-03 application/pdf https://archimer.ifremer.fr/doc/00035/14633/12050.pdf https://doi.org/10.1016/j.margeo.2010.08.006 https://archimer.ifremer.fr/doc/00035/14633/ eng eng Elsevier Science Bv https://archimer.ifremer.fr/doc/00035/14633/12050.pdf doi:10.1016/j.margeo.2010.08.006 https://archimer.ifremer.fr/doc/00035/14633/ 2010 Elsevier B.V. All rights reserved. info:eu-repo/semantics/openAccess restricted use Marine Geology (0025-3227) (Elsevier Science Bv), 2011-03 , Vol. 282 , N. 1-2 , P. 53-64 cold-water coral coral carbonate mound benthic processes biogeological processes marine geology NE Atlantic text Publication info:eu-repo/semantics/article 2011 ftarchimer https://doi.org/10.1016/j.margeo.2010.08.006 2021-09-23T20:19:23Z This paper presents a comprehensive overview of the Moira Mounds in the Porcupine Seabight, combining a review of currently published material with new data and interpretations. The Moira Mounds are circular to ovoid-shaped individual or clustered coral banks (referred to as "scleractinian spaced cluster macroreefs") located in the Belgica (carbonate) mound province, Porcupine Seabight, west of Ireland. They are up to 10 m high and 20 to 35 m in diameter. For the first time, a map showing the complete extent and location of the Moira Mounds is published, revealing 256 examples grouped into four areas mainly between 800 and 1100 m water depth. ROV groundtruthing revealed the importance of bedload sand transport in Moira Mound formation and development processes through sediment entrapment by coral frameworks (Lophelia pertusa and Madrepora oculata). New estimated growth rates for the Moira Mounds are comparable to those measured for much larger Irish coral carbonate mounds but an order of magnitude lower than rates from comparably sized reefs offshore Norway. As well as the framework corals. 26 macrobenthic invertebrate species were identified from a single box core that were similar to those communities found in adjacent off-mound habitats. It is proposed that the Moira Mounds are an example of the early stage growth phase of nearby giant coral carbonate mounds and represent a westward extension of the zone of active cold-water coral mound growth and therefore a deepening of the zone of cold-water coral growth over recent climate cycles. (C) 2010 Elsevier B.V. All rights reserved. Article in Journal/Newspaper Lophelia pertusa Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Norway Porcupine Seabight ENVELOPE(-13.000,-13.000,50.500,50.500) Marine Geology 282 1-2 53 64 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
cold-water coral coral carbonate mound benthic processes biogeological processes marine geology NE Atlantic |
spellingShingle |
cold-water coral coral carbonate mound benthic processes biogeological processes marine geology NE Atlantic Wheeler, A. J. Kozachenko, M. Henry, L. -a. Foubert, A. De Haas, H. Huvenne, V. A. I. Masson, D.c. Olu, Karine The Moira Mounds, small cold-water coral banks in the Porcupine Seabight, NE Atlantic: Part A an early stage growth phase for future coral carbonate mounds? |
topic_facet |
cold-water coral coral carbonate mound benthic processes biogeological processes marine geology NE Atlantic |
description |
This paper presents a comprehensive overview of the Moira Mounds in the Porcupine Seabight, combining a review of currently published material with new data and interpretations. The Moira Mounds are circular to ovoid-shaped individual or clustered coral banks (referred to as "scleractinian spaced cluster macroreefs") located in the Belgica (carbonate) mound province, Porcupine Seabight, west of Ireland. They are up to 10 m high and 20 to 35 m in diameter. For the first time, a map showing the complete extent and location of the Moira Mounds is published, revealing 256 examples grouped into four areas mainly between 800 and 1100 m water depth. ROV groundtruthing revealed the importance of bedload sand transport in Moira Mound formation and development processes through sediment entrapment by coral frameworks (Lophelia pertusa and Madrepora oculata). New estimated growth rates for the Moira Mounds are comparable to those measured for much larger Irish coral carbonate mounds but an order of magnitude lower than rates from comparably sized reefs offshore Norway. As well as the framework corals. 26 macrobenthic invertebrate species were identified from a single box core that were similar to those communities found in adjacent off-mound habitats. It is proposed that the Moira Mounds are an example of the early stage growth phase of nearby giant coral carbonate mounds and represent a westward extension of the zone of active cold-water coral mound growth and therefore a deepening of the zone of cold-water coral growth over recent climate cycles. (C) 2010 Elsevier B.V. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Wheeler, A. J. Kozachenko, M. Henry, L. -a. Foubert, A. De Haas, H. Huvenne, V. A. I. Masson, D.c. Olu, Karine |
author_facet |
Wheeler, A. J. Kozachenko, M. Henry, L. -a. Foubert, A. De Haas, H. Huvenne, V. A. I. Masson, D.c. Olu, Karine |
author_sort |
Wheeler, A. J. |
title |
The Moira Mounds, small cold-water coral banks in the Porcupine Seabight, NE Atlantic: Part A an early stage growth phase for future coral carbonate mounds? |
title_short |
The Moira Mounds, small cold-water coral banks in the Porcupine Seabight, NE Atlantic: Part A an early stage growth phase for future coral carbonate mounds? |
title_full |
The Moira Mounds, small cold-water coral banks in the Porcupine Seabight, NE Atlantic: Part A an early stage growth phase for future coral carbonate mounds? |
title_fullStr |
The Moira Mounds, small cold-water coral banks in the Porcupine Seabight, NE Atlantic: Part A an early stage growth phase for future coral carbonate mounds? |
title_full_unstemmed |
The Moira Mounds, small cold-water coral banks in the Porcupine Seabight, NE Atlantic: Part A an early stage growth phase for future coral carbonate mounds? |
title_sort |
moira mounds, small cold-water coral banks in the porcupine seabight, ne atlantic: part a an early stage growth phase for future coral carbonate mounds? |
publisher |
Elsevier Science Bv |
publishDate |
2011 |
url |
https://archimer.ifremer.fr/doc/00035/14633/12050.pdf https://doi.org/10.1016/j.margeo.2010.08.006 https://archimer.ifremer.fr/doc/00035/14633/ |
long_lat |
ENVELOPE(-13.000,-13.000,50.500,50.500) |
geographic |
Norway Porcupine Seabight |
geographic_facet |
Norway Porcupine Seabight |
genre |
Lophelia pertusa |
genre_facet |
Lophelia pertusa |
op_source |
Marine Geology (0025-3227) (Elsevier Science Bv), 2011-03 , Vol. 282 , N. 1-2 , P. 53-64 |
op_relation |
https://archimer.ifremer.fr/doc/00035/14633/12050.pdf doi:10.1016/j.margeo.2010.08.006 https://archimer.ifremer.fr/doc/00035/14633/ |
op_rights |
2010 Elsevier B.V. All rights reserved. info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1016/j.margeo.2010.08.006 |
container_title |
Marine Geology |
container_volume |
282 |
container_issue |
1-2 |
container_start_page |
53 |
op_container_end_page |
64 |
_version_ |
1766064623156461568 |