Contributions to the Life History of Kuskokwim River Inconnu
Abstract A radiotelemetry study conducted during 2007–2016 in the Kuskokwim River drainage in Alaska expands our understanding of the life history strategies of Inconnu Stenodus leucichthys . The Inconnu like other whitefish species has specific spawning habitat requirements and consequently spawn i...
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crwiley:10.1002/tafs.10069 2024-06-02T08:09:57+00:00 Contributions to the Life History of Kuskokwim River Inconnu Stuby, Lisa U.S. Fish and Wildlife Service 2018 http://dx.doi.org/10.1002/tafs.10069 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Ftafs.10069 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1002/tafs.10069 en eng Wiley http://creativecommons.org/licenses/by-nc-nd/4.0/ Transactions of the American Fisheries Society volume 147, issue 5, page 879-890 ISSN 0002-8487 1548-8659 journal-article 2018 crwiley https://doi.org/10.1002/tafs.10069 2024-05-03T12:05:30Z Abstract A radiotelemetry study conducted during 2007–2016 in the Kuskokwim River drainage in Alaska expands our understanding of the life history strategies of Inconnu Stenodus leucichthys . The Inconnu like other whitefish species has specific spawning habitat requirements and consequently spawn in very few areas. Documenting specific spawning, feeding, and overwintering areas is the necessary first step to ensure their habitats are protected. Four spawning areas in the upper Kuskokwim River were identified from radio‐tracking and verified with on‐site sampling. Inconnu arrived at their spawning areas during late July through mid‐September and spawned during late September through early October. Postspawning outmigration occurred during 1–1.5 weeks in mid‐October. Most radio‐tagged Inconnu made extensive postspawning downriver migrations and overwintered in the lower Kuskokwim River and in the brackish waters of the upper Kuskokwim Bay; however, some Inconnu made only short postspawning migrations and spent the winter in the middle and upper Kuskokwim River. After spring ice out, many fish that overwintered in the lower river swam upriver and spent summers feeding at the mouths of major tributaries. A high degree of site fidelity among years was observed for spawning, feeding, and overwintering areas. Habitat characteristics of spawning areas were similar with respect to spawning substrate, temperature, pH , conductivity, dissolved oxygen, and turbidity. Information gathered from this study can be used by to identify a reliable index stock for the spawning population that can be enumerated periodically to ensure the long‐term sustainability of the population. Article in Journal/Newspaper Kuskokwim Alaska Wiley Online Library Transactions of the American Fisheries Society 147 5 879 890 |
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English |
description |
Abstract A radiotelemetry study conducted during 2007–2016 in the Kuskokwim River drainage in Alaska expands our understanding of the life history strategies of Inconnu Stenodus leucichthys . The Inconnu like other whitefish species has specific spawning habitat requirements and consequently spawn in very few areas. Documenting specific spawning, feeding, and overwintering areas is the necessary first step to ensure their habitats are protected. Four spawning areas in the upper Kuskokwim River were identified from radio‐tracking and verified with on‐site sampling. Inconnu arrived at their spawning areas during late July through mid‐September and spawned during late September through early October. Postspawning outmigration occurred during 1–1.5 weeks in mid‐October. Most radio‐tagged Inconnu made extensive postspawning downriver migrations and overwintered in the lower Kuskokwim River and in the brackish waters of the upper Kuskokwim Bay; however, some Inconnu made only short postspawning migrations and spent the winter in the middle and upper Kuskokwim River. After spring ice out, many fish that overwintered in the lower river swam upriver and spent summers feeding at the mouths of major tributaries. A high degree of site fidelity among years was observed for spawning, feeding, and overwintering areas. Habitat characteristics of spawning areas were similar with respect to spawning substrate, temperature, pH , conductivity, dissolved oxygen, and turbidity. Information gathered from this study can be used by to identify a reliable index stock for the spawning population that can be enumerated periodically to ensure the long‐term sustainability of the population. |
author2 |
U.S. Fish and Wildlife Service |
format |
Article in Journal/Newspaper |
author |
Stuby, Lisa |
spellingShingle |
Stuby, Lisa Contributions to the Life History of Kuskokwim River Inconnu |
author_facet |
Stuby, Lisa |
author_sort |
Stuby, Lisa |
title |
Contributions to the Life History of Kuskokwim River Inconnu |
title_short |
Contributions to the Life History of Kuskokwim River Inconnu |
title_full |
Contributions to the Life History of Kuskokwim River Inconnu |
title_fullStr |
Contributions to the Life History of Kuskokwim River Inconnu |
title_full_unstemmed |
Contributions to the Life History of Kuskokwim River Inconnu |
title_sort |
contributions to the life history of kuskokwim river inconnu |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1002/tafs.10069 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Ftafs.10069 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1002/tafs.10069 |
genre |
Kuskokwim Alaska |
genre_facet |
Kuskokwim Alaska |
op_source |
Transactions of the American Fisheries Society volume 147, issue 5, page 879-890 ISSN 0002-8487 1548-8659 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1002/tafs.10069 |
container_title |
Transactions of the American Fisheries Society |
container_volume |
147 |
container_issue |
5 |
container_start_page |
879 |
op_container_end_page |
890 |
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1800755750649200640 |