Characterization of anadromous Arctic char winter habitat and egg incubation areas in collaboration with Inuit fishers.
In Nunavik, anadromous Arctic char spend more than 6 months under ice-covered habitats, mainly in lakes. Their winter habitats in this region have been scarcely studied due to the challenging logistics in the Arctic. In this study, we worked with Inuit fishers to characterize the winter habitat and...
Published in: | Arctic Science |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2024
|
Subjects: | |
Online Access: | https://espace.inrs.ca/id/eprint/14175/ https://espace.inrs.ca/id/eprint/14175/1/P4399.pdf https://doi.org/10.1139/as-2023-0008 |
id |
ftinrsquebec:oai:espace.inrs.ca:14175 |
---|---|
record_format |
openpolar |
spelling |
ftinrsquebec:oai:espace.inrs.ca:14175 2024-04-21T07:53:35+00:00 Characterization of anadromous Arctic char winter habitat and egg incubation areas in collaboration with Inuit fishers. Dubos, Véronique St-Hilaire, André Laurion, Isabelle Bergeron, Normand 2024 application/pdf https://espace.inrs.ca/id/eprint/14175/ https://espace.inrs.ca/id/eprint/14175/1/P4399.pdf https://doi.org/10.1139/as-2023-0008 en eng https://espace.inrs.ca/id/eprint/14175/1/P4399.pdf Dubos, Véronique ORCID logoorcid:0000-0001-6699-1845 St-Hilaire, André ORCID logoorcid:0000-0001-8443-5885 Laurion, Isabelle ORCID logoorcid:0000-0001-8694-3330 et Bergeron, Normand ORCID logoorcid:0000-0003-2413-6810 (2024). Characterization of anadromous Arctic char winter habitat and egg incubation areas in collaboration with Inuit fishers. Arctic Science , vol. 10 , nº 1. pp. 215-224. DOI:10.1139/as-2023-0008 <https://doi.org/10.1139/as-2023-0008>. doi:10.1139/as-2023-0008 overwintering fish winter habitat Inuit knowledge spawning Arctic fish Article Évalué par les pairs 2024 ftinrsquebec https://doi.org/10.1139/as-2023-0008 2024-03-28T00:36:06Z In Nunavik, anadromous Arctic char spend more than 6 months under ice-covered habitats, mainly in lakes. Their winter habitats in this region have been scarcely studied due to the challenging logistics in the Arctic. In this study, we worked with Inuit fishers to characterize the winter habitat and incubation areas used by Arctic chars in five overwintering lakes and one lentic river reach. The collaborating fishers determined char occupancy of certain areas related to fishing sites (presence, absence, and spawning) and conducted measurements to characterize the sites while performing their fishing activities. The data showed that incubation areas were associated with significantly shallower depths and warmer (albeit not statistically significant) lake bottom temperatures than sites where no spawning occurs, which is beneficial for egg maturation. The productivity of these areas is also beneficial for fry that hatch during winter. Adult and post-smolt habitats tended to be associated with cold littoral zone, but their habitat did not show any other distinct characteristics. This exploratory study adds insights into the cryptic characteristics of the Arctic char winter habitat use, thanks to the Inuit fishers’ knowledge of fish habitats and movements, and the experience and expertise they have acquired working in the local environment. Article in Journal/Newspaper Arctic inuit Nunavik Institut national de la recherche scientifique, Québec: Espace INRS Arctic Science 10 1 215 224 |
institution |
Open Polar |
collection |
Institut national de la recherche scientifique, Québec: Espace INRS |
op_collection_id |
ftinrsquebec |
language |
English |
topic |
overwintering fish winter habitat Inuit knowledge spawning Arctic fish |
spellingShingle |
overwintering fish winter habitat Inuit knowledge spawning Arctic fish Dubos, Véronique St-Hilaire, André Laurion, Isabelle Bergeron, Normand Characterization of anadromous Arctic char winter habitat and egg incubation areas in collaboration with Inuit fishers. |
topic_facet |
overwintering fish winter habitat Inuit knowledge spawning Arctic fish |
description |
In Nunavik, anadromous Arctic char spend more than 6 months under ice-covered habitats, mainly in lakes. Their winter habitats in this region have been scarcely studied due to the challenging logistics in the Arctic. In this study, we worked with Inuit fishers to characterize the winter habitat and incubation areas used by Arctic chars in five overwintering lakes and one lentic river reach. The collaborating fishers determined char occupancy of certain areas related to fishing sites (presence, absence, and spawning) and conducted measurements to characterize the sites while performing their fishing activities. The data showed that incubation areas were associated with significantly shallower depths and warmer (albeit not statistically significant) lake bottom temperatures than sites where no spawning occurs, which is beneficial for egg maturation. The productivity of these areas is also beneficial for fry that hatch during winter. Adult and post-smolt habitats tended to be associated with cold littoral zone, but their habitat did not show any other distinct characteristics. This exploratory study adds insights into the cryptic characteristics of the Arctic char winter habitat use, thanks to the Inuit fishers’ knowledge of fish habitats and movements, and the experience and expertise they have acquired working in the local environment. |
format |
Article in Journal/Newspaper |
author |
Dubos, Véronique St-Hilaire, André Laurion, Isabelle Bergeron, Normand |
author_facet |
Dubos, Véronique St-Hilaire, André Laurion, Isabelle Bergeron, Normand |
author_sort |
Dubos, Véronique |
title |
Characterization of anadromous Arctic char winter habitat and egg incubation areas in collaboration with Inuit fishers. |
title_short |
Characterization of anadromous Arctic char winter habitat and egg incubation areas in collaboration with Inuit fishers. |
title_full |
Characterization of anadromous Arctic char winter habitat and egg incubation areas in collaboration with Inuit fishers. |
title_fullStr |
Characterization of anadromous Arctic char winter habitat and egg incubation areas in collaboration with Inuit fishers. |
title_full_unstemmed |
Characterization of anadromous Arctic char winter habitat and egg incubation areas in collaboration with Inuit fishers. |
title_sort |
characterization of anadromous arctic char winter habitat and egg incubation areas in collaboration with inuit fishers. |
publishDate |
2024 |
url |
https://espace.inrs.ca/id/eprint/14175/ https://espace.inrs.ca/id/eprint/14175/1/P4399.pdf https://doi.org/10.1139/as-2023-0008 |
genre |
Arctic inuit Nunavik |
genre_facet |
Arctic inuit Nunavik |
op_relation |
https://espace.inrs.ca/id/eprint/14175/1/P4399.pdf Dubos, Véronique ORCID logoorcid:0000-0001-6699-1845 St-Hilaire, André ORCID logoorcid:0000-0001-8443-5885 Laurion, Isabelle ORCID logoorcid:0000-0001-8694-3330 et Bergeron, Normand ORCID logoorcid:0000-0003-2413-6810 (2024). Characterization of anadromous Arctic char winter habitat and egg incubation areas in collaboration with Inuit fishers. Arctic Science , vol. 10 , nº 1. pp. 215-224. DOI:10.1139/as-2023-0008 <https://doi.org/10.1139/as-2023-0008>. doi:10.1139/as-2023-0008 |
op_doi |
https://doi.org/10.1139/as-2023-0008 |
container_title |
Arctic Science |
container_volume |
10 |
container_issue |
1 |
container_start_page |
215 |
op_container_end_page |
224 |
_version_ |
1796936639621103616 |