Freshwater Form of Fourhorn Sculpin (Myoxocephalus quadricornis) from Lake Tuborg, Ellesmere Island, Nunavut, with Reference to other Canadian Lacustrine and Riverine Populations
Fourhorn sculpin (Myoxocephalus quadricornis) is ubiquitous in Canadian Arctic waters with a more common marine and brackish form and a rarer freshwater form. There is a paucity of information available for the freshwater form from Canadian waters. In the summer of 2003, we serendipitously collected...
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The Arctic Institute of North America
2023
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ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/77063 2023-05-15T14:18:48+02:00 Freshwater Form of Fourhorn Sculpin (Myoxocephalus quadricornis) from Lake Tuborg, Ellesmere Island, Nunavut, with Reference to other Canadian Lacustrine and Riverine Populations Babaluk, John A. Reist, James D. Lewis, Ted 2023-03-14 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/77063 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/77063/56593 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/77063/56594 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/77063 Copyright (c) 2023 ARCTIC http://creativecommons.org/licenses/by/4.0/ ARCTIC; Vol. 76 No. 1 (2023): MARCH 1–111; 72-82 1923-1245 0004-0843 fourhorn sculpin Myoxocephalus quadricornis freshwater form age growth diet Mysis segerstralei habitat chaboisseau à quatre cornes forme dans l’eau douce âge croissance régime alimentaire info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 2023 ftunivcalgaryojs 2023-03-19T18:39:43Z Fourhorn sculpin (Myoxocephalus quadricornis) is ubiquitous in Canadian Arctic waters with a more common marine and brackish form and a rarer freshwater form. There is a paucity of information available for the freshwater form from Canadian waters. In the summer of 2003, we serendipitously collected 28 of the freshwater form of fourhorn sculpin from Lake Tuborg, Ellesmere Island, Nunavut. The fish ranged in size from 62 mm to 171 mm total length and age from 1 to 12 years with females growing faster and to a larger theoretical maximum total length than males. The sculpin preyed mainly upon the crustacean, Mysis segerstralei, but were also opportunistic feeders (e.g., Arctic charr (Salvelinus alpinus) eggs) and cannibalistic. Although our sample of fourhorn sculpin is small, the data from these fish represent the only information from a fully freshwater form population of the species from Canadian waters. We also present an updated list of the known Canadian lacustrine and riverine populations of fourhorn sculpin. Le chaboisseau à quatre cornes (Myoxocephalus quadricornis) est une espèce ubiquiste des eaux de l’Arctique canadien, se retrouvant sous une forme plus courante dans l’eau de mer et l’eau saumâtre, et sous une forme plus rare dans l’eau douce. Il n’y a pas beaucoup d’information au sujet de la forme d’eau douce de ce poisson au Canada. À l’été 2003, nous avons fait la collecte fortuite de 28 chaboisseaux à quatre cornes d’eau douce au lac Tuborg, sur l’île d’Ellesmere, au Nunavut. La longueur totale de ces poissons âgés d’un à douze ans variait de 62 mm à 171 mm. Les femelles grandissaient plus vite et atteignaient une longueur totale maximale théorique plus grande que celle des mâles. Le chaboisseau s’alimentait principalement du crustacé Mysis segerstralei, mais il était aussi opportuniste (oeufs d’omble chevalier (Salvelinus alpinus), par exemple) et cannibale. Bien que notre échantillon de chaboisseaux à quatre cornes soit mince, les données prélevées grâce à ces poissons représentent les seules ... Article in Journal/Newspaper Arctic Arctic charr Arctic Ellesmere Island Mysis segerstralei Nunavut Salvelinus alpinus University of Calgary Journal Hosting Arctic Canada Chevalier ENVELOPE(-57.831,-57.831,51.500,51.500) Cornes ENVELOPE(-62.217,-62.217,-63.333,-63.333) Ellesmere Island Lake Tuborg ENVELOPE(-75.583,-75.583,80.950,80.950) Nunavut |
institution |
Open Polar |
collection |
University of Calgary Journal Hosting |
op_collection_id |
ftunivcalgaryojs |
language |
English |
topic |
fourhorn sculpin Myoxocephalus quadricornis freshwater form age growth diet Mysis segerstralei habitat chaboisseau à quatre cornes forme dans l’eau douce âge croissance régime alimentaire |
spellingShingle |
fourhorn sculpin Myoxocephalus quadricornis freshwater form age growth diet Mysis segerstralei habitat chaboisseau à quatre cornes forme dans l’eau douce âge croissance régime alimentaire Babaluk, John A. Reist, James D. Lewis, Ted Freshwater Form of Fourhorn Sculpin (Myoxocephalus quadricornis) from Lake Tuborg, Ellesmere Island, Nunavut, with Reference to other Canadian Lacustrine and Riverine Populations |
topic_facet |
fourhorn sculpin Myoxocephalus quadricornis freshwater form age growth diet Mysis segerstralei habitat chaboisseau à quatre cornes forme dans l’eau douce âge croissance régime alimentaire |
description |
Fourhorn sculpin (Myoxocephalus quadricornis) is ubiquitous in Canadian Arctic waters with a more common marine and brackish form and a rarer freshwater form. There is a paucity of information available for the freshwater form from Canadian waters. In the summer of 2003, we serendipitously collected 28 of the freshwater form of fourhorn sculpin from Lake Tuborg, Ellesmere Island, Nunavut. The fish ranged in size from 62 mm to 171 mm total length and age from 1 to 12 years with females growing faster and to a larger theoretical maximum total length than males. The sculpin preyed mainly upon the crustacean, Mysis segerstralei, but were also opportunistic feeders (e.g., Arctic charr (Salvelinus alpinus) eggs) and cannibalistic. Although our sample of fourhorn sculpin is small, the data from these fish represent the only information from a fully freshwater form population of the species from Canadian waters. We also present an updated list of the known Canadian lacustrine and riverine populations of fourhorn sculpin. Le chaboisseau à quatre cornes (Myoxocephalus quadricornis) est une espèce ubiquiste des eaux de l’Arctique canadien, se retrouvant sous une forme plus courante dans l’eau de mer et l’eau saumâtre, et sous une forme plus rare dans l’eau douce. Il n’y a pas beaucoup d’information au sujet de la forme d’eau douce de ce poisson au Canada. À l’été 2003, nous avons fait la collecte fortuite de 28 chaboisseaux à quatre cornes d’eau douce au lac Tuborg, sur l’île d’Ellesmere, au Nunavut. La longueur totale de ces poissons âgés d’un à douze ans variait de 62 mm à 171 mm. Les femelles grandissaient plus vite et atteignaient une longueur totale maximale théorique plus grande que celle des mâles. Le chaboisseau s’alimentait principalement du crustacé Mysis segerstralei, mais il était aussi opportuniste (oeufs d’omble chevalier (Salvelinus alpinus), par exemple) et cannibale. Bien que notre échantillon de chaboisseaux à quatre cornes soit mince, les données prélevées grâce à ces poissons représentent les seules ... |
format |
Article in Journal/Newspaper |
author |
Babaluk, John A. Reist, James D. Lewis, Ted |
author_facet |
Babaluk, John A. Reist, James D. Lewis, Ted |
author_sort |
Babaluk, John A. |
title |
Freshwater Form of Fourhorn Sculpin (Myoxocephalus quadricornis) from Lake Tuborg, Ellesmere Island, Nunavut, with Reference to other Canadian Lacustrine and Riverine Populations |
title_short |
Freshwater Form of Fourhorn Sculpin (Myoxocephalus quadricornis) from Lake Tuborg, Ellesmere Island, Nunavut, with Reference to other Canadian Lacustrine and Riverine Populations |
title_full |
Freshwater Form of Fourhorn Sculpin (Myoxocephalus quadricornis) from Lake Tuborg, Ellesmere Island, Nunavut, with Reference to other Canadian Lacustrine and Riverine Populations |
title_fullStr |
Freshwater Form of Fourhorn Sculpin (Myoxocephalus quadricornis) from Lake Tuborg, Ellesmere Island, Nunavut, with Reference to other Canadian Lacustrine and Riverine Populations |
title_full_unstemmed |
Freshwater Form of Fourhorn Sculpin (Myoxocephalus quadricornis) from Lake Tuborg, Ellesmere Island, Nunavut, with Reference to other Canadian Lacustrine and Riverine Populations |
title_sort |
freshwater form of fourhorn sculpin (myoxocephalus quadricornis) from lake tuborg, ellesmere island, nunavut, with reference to other canadian lacustrine and riverine populations |
publisher |
The Arctic Institute of North America |
publishDate |
2023 |
url |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/77063 |
long_lat |
ENVELOPE(-57.831,-57.831,51.500,51.500) ENVELOPE(-62.217,-62.217,-63.333,-63.333) ENVELOPE(-75.583,-75.583,80.950,80.950) |
geographic |
Arctic Canada Chevalier Cornes Ellesmere Island Lake Tuborg Nunavut |
geographic_facet |
Arctic Canada Chevalier Cornes Ellesmere Island Lake Tuborg Nunavut |
genre |
Arctic Arctic charr Arctic Ellesmere Island Mysis segerstralei Nunavut Salvelinus alpinus |
genre_facet |
Arctic Arctic charr Arctic Ellesmere Island Mysis segerstralei Nunavut Salvelinus alpinus |
op_source |
ARCTIC; Vol. 76 No. 1 (2023): MARCH 1–111; 72-82 1923-1245 0004-0843 |
op_relation |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/77063/56593 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/77063/56594 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/77063 |
op_rights |
Copyright (c) 2023 ARCTIC http://creativecommons.org/licenses/by/4.0/ |
_version_ |
1766290278908428288 |