Cephalopods of the Southwest Indian OceanRidge: A hotspot of biological diversity and absence of endemism
A total of 68 cephalopod species belonging to 26 families (10–11% of the total known cephalopod diversity) were collected onboard R/V Fridtjof Nansen during a research survey on Southwest Indian Ocean Ridge in November–December 2009. This relatively small area extends from the Tropical front to the...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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Online Access: | https://doi.org/10.1016/j.dsr2.2015.07.002 https://ora.ox.ac.uk/objects/uuid:839df2bd-a09c-44d9-8076-d9b306afc04a |
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ftuloxford:oai:ora.ox.ac.uk:uuid:839df2bd-a09c-44d9-8076-d9b306afc04a 2024-09-30T14:35:14+00:00 Cephalopods of the Southwest Indian OceanRidge: A hotspot of biological diversity and absence of endemism Laptikhovsky, V Boersch-Supan, P Bolstad, K Kemp, K Letessier, T Rogers, A 2018-06-08 https://doi.org/10.1016/j.dsr2.2015.07.002 https://ora.ox.ac.uk/objects/uuid:839df2bd-a09c-44d9-8076-d9b306afc04a unknown Elsevier doi:10.1016/j.dsr2.2015.07.002 https://ora.ox.ac.uk/objects/uuid:839df2bd-a09c-44d9-8076-d9b306afc04a https://doi.org/10.1016/j.dsr2.2015.07.002 info:eu-repo/semantics/openAccess CC Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND) Journal article 2018 ftuloxford https://doi.org/10.1016/j.dsr2.2015.07.002 2024-09-06T07:47:37Z A total of 68 cephalopod species belonging to 26 families (10–11% of the total known cephalopod diversity) were collected onboard R/V Fridtjof Nansen during a research survey on Southwest Indian Ocean Ridge in November–December 2009. This relatively small area extends from the Tropical front to the Subantarctic front with four distinctive cephalopod faunas and represents one of the most outstanding hotspots of cephalopod diversity reported to date. However, most of the species caught there were characterised by circumglobal distribution in the Southern Hemisphere, and no endemic species were unambiguously found, although a number of taxa could not be confidently attributed to known species. Most of the studied area was dominated by squid species reproducing in epipelagic layers (mostly Enoploteuthidae and Pyroteuthidae). Species reproducing in meso-bathypelagial whose juveniles ascend to surface water (Cranchiidae, Histioteuthidae, etc.) became gradually more and more important southward from the Tropical Zone to the Southern Peripheral Ecotone. In the latter region they were joined by near-bottom dwellers of the order Sepiolida. The epipelagic strategy of reproduction disappears completely at the Subpolar Front, where epipelagic waters were inhabited by young members of the Cranchiidae and Gonatidae hatched in deep-seas. This study demonstrated the importance of conservation and management of this high-seas area, with its unique biodiversity and ecological resources, in line with recommendations by the IUCN Seamount project and Global Ocean Biodiversity Initiative. Article in Journal/Newspaper Fridtjof Nansen ORA - Oxford University Research Archive Fridtjof ENVELOPE(-56.717,-56.717,-63.567,-63.567) Indian Deep Sea Research Part II: Topical Studies in Oceanography 136 98 107 |
institution |
Open Polar |
collection |
ORA - Oxford University Research Archive |
op_collection_id |
ftuloxford |
language |
unknown |
description |
A total of 68 cephalopod species belonging to 26 families (10–11% of the total known cephalopod diversity) were collected onboard R/V Fridtjof Nansen during a research survey on Southwest Indian Ocean Ridge in November–December 2009. This relatively small area extends from the Tropical front to the Subantarctic front with four distinctive cephalopod faunas and represents one of the most outstanding hotspots of cephalopod diversity reported to date. However, most of the species caught there were characterised by circumglobal distribution in the Southern Hemisphere, and no endemic species were unambiguously found, although a number of taxa could not be confidently attributed to known species. Most of the studied area was dominated by squid species reproducing in epipelagic layers (mostly Enoploteuthidae and Pyroteuthidae). Species reproducing in meso-bathypelagial whose juveniles ascend to surface water (Cranchiidae, Histioteuthidae, etc.) became gradually more and more important southward from the Tropical Zone to the Southern Peripheral Ecotone. In the latter region they were joined by near-bottom dwellers of the order Sepiolida. The epipelagic strategy of reproduction disappears completely at the Subpolar Front, where epipelagic waters were inhabited by young members of the Cranchiidae and Gonatidae hatched in deep-seas. This study demonstrated the importance of conservation and management of this high-seas area, with its unique biodiversity and ecological resources, in line with recommendations by the IUCN Seamount project and Global Ocean Biodiversity Initiative. |
format |
Article in Journal/Newspaper |
author |
Laptikhovsky, V Boersch-Supan, P Bolstad, K Kemp, K Letessier, T Rogers, A |
spellingShingle |
Laptikhovsky, V Boersch-Supan, P Bolstad, K Kemp, K Letessier, T Rogers, A Cephalopods of the Southwest Indian OceanRidge: A hotspot of biological diversity and absence of endemism |
author_facet |
Laptikhovsky, V Boersch-Supan, P Bolstad, K Kemp, K Letessier, T Rogers, A |
author_sort |
Laptikhovsky, V |
title |
Cephalopods of the Southwest Indian OceanRidge: A hotspot of biological diversity and absence of endemism |
title_short |
Cephalopods of the Southwest Indian OceanRidge: A hotspot of biological diversity and absence of endemism |
title_full |
Cephalopods of the Southwest Indian OceanRidge: A hotspot of biological diversity and absence of endemism |
title_fullStr |
Cephalopods of the Southwest Indian OceanRidge: A hotspot of biological diversity and absence of endemism |
title_full_unstemmed |
Cephalopods of the Southwest Indian OceanRidge: A hotspot of biological diversity and absence of endemism |
title_sort |
cephalopods of the southwest indian oceanridge: a hotspot of biological diversity and absence of endemism |
publisher |
Elsevier |
publishDate |
2018 |
url |
https://doi.org/10.1016/j.dsr2.2015.07.002 https://ora.ox.ac.uk/objects/uuid:839df2bd-a09c-44d9-8076-d9b306afc04a |
long_lat |
ENVELOPE(-56.717,-56.717,-63.567,-63.567) |
geographic |
Fridtjof Indian |
geographic_facet |
Fridtjof Indian |
genre |
Fridtjof Nansen |
genre_facet |
Fridtjof Nansen |
op_relation |
doi:10.1016/j.dsr2.2015.07.002 https://ora.ox.ac.uk/objects/uuid:839df2bd-a09c-44d9-8076-d9b306afc04a https://doi.org/10.1016/j.dsr2.2015.07.002 |
op_rights |
info:eu-repo/semantics/openAccess CC Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND) |
op_doi |
https://doi.org/10.1016/j.dsr2.2015.07.002 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
136 |
container_start_page |
98 |
op_container_end_page |
107 |
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1811638564758224896 |