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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Main Authors: Babaluk, John A., Reist, James D., Lewis, Ted
Format: Article in Journal/Newspaper
Language:English
Published: The Arctic Institute of North America 2023
Subjects:
age
Online Access:https://journalhosting.ucalgary.ca/index.php/arctic/article/view/77063
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spelling 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/
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