Gaidropsarus mauritanicus (Gadiformes, Gaidropsaridae) a new three‐bearded rockling from a deep‐water coral ecosystem with a genetically verified biogeographical distribution of the genus and notes to its ecology and behavior
Gaidropsarus mauritanicus sp. nov. is described from one specimen collected using a grab sample from the Tanoûdêrt Canyon (ca. 20° N) off Mauritania at a depth of 595 m. The new species was further observed during eight remotely operated vehicle (ROV) dives along the Mauritanian slope southwards dow...
Published in: | Journal of Fish Biology |
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Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Wiley
2024
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Online Access: | https://archimer.ifremer.fr/doc/00904/101622/112537.pdf https://archimer.ifremer.fr/doc/00904/101622/112538.xlsx https://archimer.ifremer.fr/doc/00904/101622/112539.wmv https://archimer.ifremer.fr/doc/00904/101622/112540.wmv https://doi.org/10.1111/jfb.15859 https://archimer.ifremer.fr/doc/00904/101622/ |
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ftarchimer:oai:archimer.ifremer.fr:101622 2024-09-15T18:24:05+00:00 Gaidropsarus mauritanicus (Gadiformes, Gaidropsaridae) a new three‐bearded rockling from a deep‐water coral ecosystem with a genetically verified biogeographical distribution of the genus and notes to its ecology and behavior Knorrn, Alexander H. Beuck, Lydia Barros‐garcía, David Fernández‐peralta, Lourdes Freiwald, André 2024-08-16 application/pdf https://archimer.ifremer.fr/doc/00904/101622/112537.pdf https://archimer.ifremer.fr/doc/00904/101622/112538.xlsx https://archimer.ifremer.fr/doc/00904/101622/112539.wmv https://archimer.ifremer.fr/doc/00904/101622/112540.wmv https://doi.org/10.1111/jfb.15859 https://archimer.ifremer.fr/doc/00904/101622/ eng eng Wiley https://archimer.ifremer.fr/doc/00904/101622/112537.pdf https://archimer.ifremer.fr/doc/00904/101622/112538.xlsx https://archimer.ifremer.fr/doc/00904/101622/112539.wmv https://archimer.ifremer.fr/doc/00904/101622/112540.wmv doi:10.1111/jfb.15859 https://archimer.ifremer.fr/doc/00904/101622/ info:eu-repo/semantics/openAccess restricted use Journal of Fish Biology (0022-1112) (Wiley) In Press deep-water coral habitat micro-CT NE Atlantic NW Africa phylogenetics species delimitation Tanoûdêrt canyon X-ray Mauritania text Article info:eu-repo/semantics/article 2024 ftarchimer https://doi.org/10.1111/jfb.15859 2024-09-03T23:47:39Z Gaidropsarus mauritanicus sp. nov. is described from one specimen collected using a grab sample from the Tanoûdêrt Canyon (ca. 20° N) off Mauritania at a depth of 595 m. The new species was further observed during eight remotely operated vehicle (ROV) dives along the Mauritanian slope southwards down to the Tiguent Coral Mound Complex (~17° N) in a bathymetric range between 613 and 416 m. It can be distinguished from congeners by a combination of characteristics, including large eyes (38.1% head length [HL]), large head (25.8% standard length [SL]), elongated pelvic fins (35.7% SL), low number of vertebrae (44), and coloration (pinkish with a dorsal darker brownish hue and bright blotches along the dorsal‐fin base). A species‐delimitation analysis performed with available cytochrome c oxidase subunit 1 (COI) sequences affiliated to the genus Gaidropsarus additionally supported the validity of the new species. Video analyses showed a deep‐water coral‐associated and protection‐seeking behavior, which may explain why the species has remained undescribed until now. Additional ROV footage from separate deep‐water coral sites in the North Atlantic and Mediterranean Sea further highlights the ecological behavior and hidden diversity of bathyal three‐bearded rocklings. Here, we additionally discuss the biogeographical distribution of all genetically verified Gaidropsarus spp. in combination with genetic data and morphological characters. G. mauritanicus sp. nov. is closely related to a species from Tasmania (43° S), a geographical point furthest among the studied samples, which may hint to an important influence of (paleo‐) oceanography on the distributions of Gaidropsarus species. Article in Journal/Newspaper North Atlantic Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Journal of Fish Biology |
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 |
deep-water coral habitat micro-CT NE Atlantic NW Africa phylogenetics species delimitation Tanoûdêrt canyon X-ray Mauritania |
spellingShingle |
deep-water coral habitat micro-CT NE Atlantic NW Africa phylogenetics species delimitation Tanoûdêrt canyon X-ray Mauritania Knorrn, Alexander H. Beuck, Lydia Barros‐garcía, David Fernández‐peralta, Lourdes Freiwald, André Gaidropsarus mauritanicus (Gadiformes, Gaidropsaridae) a new three‐bearded rockling from a deep‐water coral ecosystem with a genetically verified biogeographical distribution of the genus and notes to its ecology and behavior |
topic_facet |
deep-water coral habitat micro-CT NE Atlantic NW Africa phylogenetics species delimitation Tanoûdêrt canyon X-ray Mauritania |
description |
Gaidropsarus mauritanicus sp. nov. is described from one specimen collected using a grab sample from the Tanoûdêrt Canyon (ca. 20° N) off Mauritania at a depth of 595 m. The new species was further observed during eight remotely operated vehicle (ROV) dives along the Mauritanian slope southwards down to the Tiguent Coral Mound Complex (~17° N) in a bathymetric range between 613 and 416 m. It can be distinguished from congeners by a combination of characteristics, including large eyes (38.1% head length [HL]), large head (25.8% standard length [SL]), elongated pelvic fins (35.7% SL), low number of vertebrae (44), and coloration (pinkish with a dorsal darker brownish hue and bright blotches along the dorsal‐fin base). A species‐delimitation analysis performed with available cytochrome c oxidase subunit 1 (COI) sequences affiliated to the genus Gaidropsarus additionally supported the validity of the new species. Video analyses showed a deep‐water coral‐associated and protection‐seeking behavior, which may explain why the species has remained undescribed until now. Additional ROV footage from separate deep‐water coral sites in the North Atlantic and Mediterranean Sea further highlights the ecological behavior and hidden diversity of bathyal three‐bearded rocklings. Here, we additionally discuss the biogeographical distribution of all genetically verified Gaidropsarus spp. in combination with genetic data and morphological characters. G. mauritanicus sp. nov. is closely related to a species from Tasmania (43° S), a geographical point furthest among the studied samples, which may hint to an important influence of (paleo‐) oceanography on the distributions of Gaidropsarus species. |
format |
Article in Journal/Newspaper |
author |
Knorrn, Alexander H. Beuck, Lydia Barros‐garcía, David Fernández‐peralta, Lourdes Freiwald, André |
author_facet |
Knorrn, Alexander H. Beuck, Lydia Barros‐garcía, David Fernández‐peralta, Lourdes Freiwald, André |
author_sort |
Knorrn, Alexander H. |
title |
Gaidropsarus mauritanicus (Gadiformes, Gaidropsaridae) a new three‐bearded rockling from a deep‐water coral ecosystem with a genetically verified biogeographical distribution of the genus and notes to its ecology and behavior |
title_short |
Gaidropsarus mauritanicus (Gadiformes, Gaidropsaridae) a new three‐bearded rockling from a deep‐water coral ecosystem with a genetically verified biogeographical distribution of the genus and notes to its ecology and behavior |
title_full |
Gaidropsarus mauritanicus (Gadiformes, Gaidropsaridae) a new three‐bearded rockling from a deep‐water coral ecosystem with a genetically verified biogeographical distribution of the genus and notes to its ecology and behavior |
title_fullStr |
Gaidropsarus mauritanicus (Gadiformes, Gaidropsaridae) a new three‐bearded rockling from a deep‐water coral ecosystem with a genetically verified biogeographical distribution of the genus and notes to its ecology and behavior |
title_full_unstemmed |
Gaidropsarus mauritanicus (Gadiformes, Gaidropsaridae) a new three‐bearded rockling from a deep‐water coral ecosystem with a genetically verified biogeographical distribution of the genus and notes to its ecology and behavior |
title_sort |
gaidropsarus mauritanicus (gadiformes, gaidropsaridae) a new three‐bearded rockling from a deep‐water coral ecosystem with a genetically verified biogeographical distribution of the genus and notes to its ecology and behavior |
publisher |
Wiley |
publishDate |
2024 |
url |
https://archimer.ifremer.fr/doc/00904/101622/112537.pdf https://archimer.ifremer.fr/doc/00904/101622/112538.xlsx https://archimer.ifremer.fr/doc/00904/101622/112539.wmv https://archimer.ifremer.fr/doc/00904/101622/112540.wmv https://doi.org/10.1111/jfb.15859 https://archimer.ifremer.fr/doc/00904/101622/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Journal of Fish Biology (0022-1112) (Wiley) In Press |
op_relation |
https://archimer.ifremer.fr/doc/00904/101622/112537.pdf https://archimer.ifremer.fr/doc/00904/101622/112538.xlsx https://archimer.ifremer.fr/doc/00904/101622/112539.wmv https://archimer.ifremer.fr/doc/00904/101622/112540.wmv doi:10.1111/jfb.15859 https://archimer.ifremer.fr/doc/00904/101622/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1111/jfb.15859 |
container_title |
Journal of Fish Biology |
_version_ |
1810464380909780992 |