First Records, Description, Distribution, and Notes on the Biology of Bathyraja richardsoni (Garrick) from the Northwest Atlantic
Eighteen Bathyraja richardsoni (Garrick 1961), 95–174 cm in total length were taken by bottom longline from southern Labrador to Georges Bank, 17 at 1810–2360 m, and one at 1370–1500 m. These are the first records for the western Atlantic. Studies of morphometries, of numbers, of form, and arrangeme...
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Canadian Science Publishing
1973
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crcansciencepubl:10.1139/f73-294 2023-12-17T10:47:22+01:00 First Records, Description, Distribution, and Notes on the Biology of Bathyraja richardsoni (Garrick) from the Northwest Atlantic Templeman, Wilfred 1973 http://dx.doi.org/10.1139/f73-294 http://www.nrcresearchpress.com/doi/pdf/10.1139/f73-294 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Journal of the Fisheries Research Board of Canada volume 30, issue 12, page 1831-1840 ISSN 0015-296X General Medicine journal-article 1973 crcansciencepubl https://doi.org/10.1139/f73-294 2023-11-19T13:38:20Z Eighteen Bathyraja richardsoni (Garrick 1961), 95–174 cm in total length were taken by bottom longline from southern Labrador to Georges Bank, 17 at 1810–2360 m, and one at 1370–1500 m. These are the first records for the western Atlantic. Studies of morphometries, of numbers, of form, and arrangement of spines, dermal denticles, and teeth, and of body color in these skates amplify the description of the species, known previously only from New Zealand (the holotype) and the northeast Atlantic (eight specimens). There is, however, appreciable variation in the distribution and abundance of dermal denticles between the new specimens and the holotype. These specimens also have middorsal caudal spines instead of the middorsal caudal row of fleshy oval structures (some with a central tubercle of enamel) of the holotype, which are related in this paper to scar areas from lost spines.Some information is provided on weight–length, liver weight, and fatness, vitamin A of liver oil, and length at sexual maturity. Food was mainly fish.The trematode Otodistomum veliporum occurred in 5 of 16 stomachs and the cestode Onchobothrium pseudouncinatum in 6 of 16 intestines. A copepod, tentatively identified as Lernaeopodina longimana, was found on the gills of one of five specimens. Article in Journal/Newspaper Northeast Atlantic Northwest Atlantic Canadian Science Publishing (via Crossref) New Zealand Journal of the Fisheries Research Board of Canada 30 12 1831 1840 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Medicine |
spellingShingle |
General Medicine Templeman, Wilfred First Records, Description, Distribution, and Notes on the Biology of Bathyraja richardsoni (Garrick) from the Northwest Atlantic |
topic_facet |
General Medicine |
description |
Eighteen Bathyraja richardsoni (Garrick 1961), 95–174 cm in total length were taken by bottom longline from southern Labrador to Georges Bank, 17 at 1810–2360 m, and one at 1370–1500 m. These are the first records for the western Atlantic. Studies of morphometries, of numbers, of form, and arrangement of spines, dermal denticles, and teeth, and of body color in these skates amplify the description of the species, known previously only from New Zealand (the holotype) and the northeast Atlantic (eight specimens). There is, however, appreciable variation in the distribution and abundance of dermal denticles between the new specimens and the holotype. These specimens also have middorsal caudal spines instead of the middorsal caudal row of fleshy oval structures (some with a central tubercle of enamel) of the holotype, which are related in this paper to scar areas from lost spines.Some information is provided on weight–length, liver weight, and fatness, vitamin A of liver oil, and length at sexual maturity. Food was mainly fish.The trematode Otodistomum veliporum occurred in 5 of 16 stomachs and the cestode Onchobothrium pseudouncinatum in 6 of 16 intestines. A copepod, tentatively identified as Lernaeopodina longimana, was found on the gills of one of five specimens. |
format |
Article in Journal/Newspaper |
author |
Templeman, Wilfred |
author_facet |
Templeman, Wilfred |
author_sort |
Templeman, Wilfred |
title |
First Records, Description, Distribution, and Notes on the Biology of Bathyraja richardsoni (Garrick) from the Northwest Atlantic |
title_short |
First Records, Description, Distribution, and Notes on the Biology of Bathyraja richardsoni (Garrick) from the Northwest Atlantic |
title_full |
First Records, Description, Distribution, and Notes on the Biology of Bathyraja richardsoni (Garrick) from the Northwest Atlantic |
title_fullStr |
First Records, Description, Distribution, and Notes on the Biology of Bathyraja richardsoni (Garrick) from the Northwest Atlantic |
title_full_unstemmed |
First Records, Description, Distribution, and Notes on the Biology of Bathyraja richardsoni (Garrick) from the Northwest Atlantic |
title_sort |
first records, description, distribution, and notes on the biology of bathyraja richardsoni (garrick) from the northwest atlantic |
publisher |
Canadian Science Publishing |
publishDate |
1973 |
url |
http://dx.doi.org/10.1139/f73-294 http://www.nrcresearchpress.com/doi/pdf/10.1139/f73-294 |
geographic |
New Zealand |
geographic_facet |
New Zealand |
genre |
Northeast Atlantic Northwest Atlantic |
genre_facet |
Northeast Atlantic Northwest Atlantic |
op_source |
Journal of the Fisheries Research Board of Canada volume 30, issue 12, page 1831-1840 ISSN 0015-296X |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f73-294 |
container_title |
Journal of the Fisheries Research Board of Canada |
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30 |
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12 |
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1831 |
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1840 |
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1785571209533980672 |