Range extension of two deep-sea nudibranchs, Tritonia newfoundlandica and Doridoxa ingolfiana (Mollusca: Gastropoda: Heterobranchia), in eastern Canada
Deep-sea nudibranchs (Mollusca: Gastropoda: Heterobranchia) have rarely been reported from eastern Canada. Here we describe range extensions for two species found in the northwest Atlantic Ocean. Tritonia newfoundlandica Valdés, Murillo, McCarthy & Yedinak, 2017 was originally collected on the F...
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Online Access: | https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/2443 https://doi.org/10.22621/cfn.v134i2.2443 |
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ftjcfn:oai:canadianfieldnaturalist.ca:article/2443 2023-05-15T16:10:52+02:00 Range extension of two deep-sea nudibranchs, Tritonia newfoundlandica and Doridoxa ingolfiana (Mollusca: Gastropoda: Heterobranchia), in eastern Canada Penney, Heather D. Hamel, Jean-François Mercier, Annie 2020-09-21 application/pdf https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/2443 https://doi.org/10.22621/cfn.v134i2.2443 eng eng The Ottawa Field-Naturalists' Club https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/2443/2495 https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/2443 doi:10.22621/cfn.v134i2.2443 Copyright (c) 2020 The Canadian Field-Naturalist The Canadian Field-Naturalist; Vol. 134 No. 2 (2020); 165-170 0008-3550 North Atlantic Ocean Newfoundland and Labrador sea slug Tritoniidae Doridoxidae biodiversity taxonomy Tritonia newfoundlandica Doridoxa ingolfiana info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2020 ftjcfn https://doi.org/10.22621/cfn.v134i2.2443 2021-09-02T18:54:55Z Deep-sea nudibranchs (Mollusca: Gastropoda: Heterobranchia) have rarely been reported from eastern Canada. Here we describe range extensions for two species found in the northwest Atlantic Ocean. Tritonia newfoundlandica Valdés, Murillo, McCarthy & Yedinak, 2017 was originally collected on the Flemish Cap off Newfoundland, Canada, and Doridoxa ingolfiana Bergh, 1899 was originally found off western Greenland with further records in Iceland, northern Norway, and southeastern Canada. We extend the northern range of T. newfoundlandica 1067 km along the eastern coast of North America and add occurrences of D. ingolfiana in the Labrador Sea, bridging a 2044 km gap between previous records in Greenland and southern Newfoundland. The latter species thus exhibits a continuous distribution from Svalbard, the Faroe Islands, Greenland, down to the southern tip of the Grand Banks in eastern Canada. Tritonia newfoundlandica was collected in its known depth range, whereas the depth distribution of D. ingolfiana was extended by 30 m to a maximum depth of 1375 m. Both species were collected with numerous nephtheid corals, suggesting that there may be a functional relationship, where the nudibranchs find refuge or food on them. Article in Journal/Newspaper Faroe Islands Greenland Iceland Labrador Sea Newfoundland North Atlantic Northern Norway Northwest Atlantic Svalbard The Canadian Field-Naturalist (E-Journal) Canada Faroe Islands Greenland McCarthy ENVELOPE(66.543,66.543,-70.404,-70.404) Newfoundland Norway Svalbard The Canadian Field-Naturalist 134 2 165 170 |
institution |
Open Polar |
collection |
The Canadian Field-Naturalist (E-Journal) |
op_collection_id |
ftjcfn |
language |
English |
topic |
North Atlantic Ocean Newfoundland and Labrador sea slug Tritoniidae Doridoxidae biodiversity taxonomy Tritonia newfoundlandica Doridoxa ingolfiana |
spellingShingle |
North Atlantic Ocean Newfoundland and Labrador sea slug Tritoniidae Doridoxidae biodiversity taxonomy Tritonia newfoundlandica Doridoxa ingolfiana Penney, Heather D. Hamel, Jean-François Mercier, Annie Range extension of two deep-sea nudibranchs, Tritonia newfoundlandica and Doridoxa ingolfiana (Mollusca: Gastropoda: Heterobranchia), in eastern Canada |
topic_facet |
North Atlantic Ocean Newfoundland and Labrador sea slug Tritoniidae Doridoxidae biodiversity taxonomy Tritonia newfoundlandica Doridoxa ingolfiana |
description |
Deep-sea nudibranchs (Mollusca: Gastropoda: Heterobranchia) have rarely been reported from eastern Canada. Here we describe range extensions for two species found in the northwest Atlantic Ocean. Tritonia newfoundlandica Valdés, Murillo, McCarthy & Yedinak, 2017 was originally collected on the Flemish Cap off Newfoundland, Canada, and Doridoxa ingolfiana Bergh, 1899 was originally found off western Greenland with further records in Iceland, northern Norway, and southeastern Canada. We extend the northern range of T. newfoundlandica 1067 km along the eastern coast of North America and add occurrences of D. ingolfiana in the Labrador Sea, bridging a 2044 km gap between previous records in Greenland and southern Newfoundland. The latter species thus exhibits a continuous distribution from Svalbard, the Faroe Islands, Greenland, down to the southern tip of the Grand Banks in eastern Canada. Tritonia newfoundlandica was collected in its known depth range, whereas the depth distribution of D. ingolfiana was extended by 30 m to a maximum depth of 1375 m. Both species were collected with numerous nephtheid corals, suggesting that there may be a functional relationship, where the nudibranchs find refuge or food on them. |
format |
Article in Journal/Newspaper |
author |
Penney, Heather D. Hamel, Jean-François Mercier, Annie |
author_facet |
Penney, Heather D. Hamel, Jean-François Mercier, Annie |
author_sort |
Penney, Heather D. |
title |
Range extension of two deep-sea nudibranchs, Tritonia newfoundlandica and Doridoxa ingolfiana (Mollusca: Gastropoda: Heterobranchia), in eastern Canada |
title_short |
Range extension of two deep-sea nudibranchs, Tritonia newfoundlandica and Doridoxa ingolfiana (Mollusca: Gastropoda: Heterobranchia), in eastern Canada |
title_full |
Range extension of two deep-sea nudibranchs, Tritonia newfoundlandica and Doridoxa ingolfiana (Mollusca: Gastropoda: Heterobranchia), in eastern Canada |
title_fullStr |
Range extension of two deep-sea nudibranchs, Tritonia newfoundlandica and Doridoxa ingolfiana (Mollusca: Gastropoda: Heterobranchia), in eastern Canada |
title_full_unstemmed |
Range extension of two deep-sea nudibranchs, Tritonia newfoundlandica and Doridoxa ingolfiana (Mollusca: Gastropoda: Heterobranchia), in eastern Canada |
title_sort |
range extension of two deep-sea nudibranchs, tritonia newfoundlandica and doridoxa ingolfiana (mollusca: gastropoda: heterobranchia), in eastern canada |
publisher |
The Ottawa Field-Naturalists' Club |
publishDate |
2020 |
url |
https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/2443 https://doi.org/10.22621/cfn.v134i2.2443 |
long_lat |
ENVELOPE(66.543,66.543,-70.404,-70.404) |
geographic |
Canada Faroe Islands Greenland McCarthy Newfoundland Norway Svalbard |
geographic_facet |
Canada Faroe Islands Greenland McCarthy Newfoundland Norway Svalbard |
genre |
Faroe Islands Greenland Iceland Labrador Sea Newfoundland North Atlantic Northern Norway Northwest Atlantic Svalbard |
genre_facet |
Faroe Islands Greenland Iceland Labrador Sea Newfoundland North Atlantic Northern Norway Northwest Atlantic Svalbard |
op_source |
The Canadian Field-Naturalist; Vol. 134 No. 2 (2020); 165-170 0008-3550 |
op_relation |
https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/2443/2495 https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/2443 doi:10.22621/cfn.v134i2.2443 |
op_rights |
Copyright (c) 2020 The Canadian Field-Naturalist |
op_doi |
https://doi.org/10.22621/cfn.v134i2.2443 |
container_title |
The Canadian Field-Naturalist |
container_volume |
134 |
container_issue |
2 |
container_start_page |
165 |
op_container_end_page |
170 |
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1765996008164032512 |