A Synthesis of Kootenai River Burbot Stock History and Future Management Goals
Abstract In Idaho, Burbot Lota lota are endemic only to the Kootenai River, where they once provided an important winter fishery to the indigenous people and European settlers. This fishery and that of Kootenay Lake in British Columbia may have been the most robust Burbot fisheries in North America....
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crwiley:10.1080/00028487.2013.790845 2024-06-02T08:04:38+00:00 A Synthesis of Kootenai River Burbot Stock History and Future Management Goals Hardy, Ryan Paragamian, Vaughn L. 2013 http://dx.doi.org/10.1080/00028487.2013.790845 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1080/00028487.2013.790845 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Transactions of the American Fisheries Society volume 142, issue 6, page 1662-1670 ISSN 0002-8487 1548-8659 journal-article 2013 crwiley https://doi.org/10.1080/00028487.2013.790845 2024-05-03T10:54:41Z Abstract In Idaho, Burbot Lota lota are endemic only to the Kootenai River, where they once provided an important winter fishery to the indigenous people and European settlers. This fishery and that of Kootenay Lake in British Columbia may have been the most robust Burbot fisheries in North America. However, the fishery in Idaho rapidly declined after the construction of Libby Dam by the U.S. Army Corps of Engineers in 1972, and it closed in 1992. Concomitant to the collapse in Idaho was the collapse of the Burbot fishery in Kootenay Lake and the Kootenay River. The operation of Libby Dam for hydroelectric power generation and flood control created major changes in the river's nutrient concentration, temperature, and seasonal discharge, particularly during the winter when Burbot spawn. Libby Dam operations were implicated as the major limiting factor to Burbot recruitment, giving rise to higher winter temperatures and widely fluctuating flows. Because the Burbot in the Kootenai River are at risk of demographic extinction, a conservation strategy was prepared to outline the measures necessary to rehabilitate the Burbot population to a self‐sustaining level. The strategy indicated that operational discharge changes at Libby Dam are required during winter to provide suitable temperature and discharge conditions for Burbot migration and spawning. Studies recommend that the discharge at Bonners Ferry average 176 m 3 /s for a minimum of 90 d (mid‐November through mid‐February). Furthermore, preferred Burbot water temperatures of about 6°C are necessary for migration and cooler temperatures of 1–4°C for spawning. With each passing year, Burbot stock limitations increasingly constrain rehabilitation. Thus, coordination of intensive culture, extensive rearing, and pen rearing among the Kootenai Tribe of Idaho, the British Columbia Ministry of Environment, the University of Idaho's Aquatic Research Institute, and the Idaho Department of Fish and Game is important for restoration. Article in Journal/Newspaper Burbot Lota lota lota Wiley Online Library Transactions of the American Fisheries Society 142 6 1662 1670 |
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English |
description |
Abstract In Idaho, Burbot Lota lota are endemic only to the Kootenai River, where they once provided an important winter fishery to the indigenous people and European settlers. This fishery and that of Kootenay Lake in British Columbia may have been the most robust Burbot fisheries in North America. However, the fishery in Idaho rapidly declined after the construction of Libby Dam by the U.S. Army Corps of Engineers in 1972, and it closed in 1992. Concomitant to the collapse in Idaho was the collapse of the Burbot fishery in Kootenay Lake and the Kootenay River. The operation of Libby Dam for hydroelectric power generation and flood control created major changes in the river's nutrient concentration, temperature, and seasonal discharge, particularly during the winter when Burbot spawn. Libby Dam operations were implicated as the major limiting factor to Burbot recruitment, giving rise to higher winter temperatures and widely fluctuating flows. Because the Burbot in the Kootenai River are at risk of demographic extinction, a conservation strategy was prepared to outline the measures necessary to rehabilitate the Burbot population to a self‐sustaining level. The strategy indicated that operational discharge changes at Libby Dam are required during winter to provide suitable temperature and discharge conditions for Burbot migration and spawning. Studies recommend that the discharge at Bonners Ferry average 176 m 3 /s for a minimum of 90 d (mid‐November through mid‐February). Furthermore, preferred Burbot water temperatures of about 6°C are necessary for migration and cooler temperatures of 1–4°C for spawning. With each passing year, Burbot stock limitations increasingly constrain rehabilitation. Thus, coordination of intensive culture, extensive rearing, and pen rearing among the Kootenai Tribe of Idaho, the British Columbia Ministry of Environment, the University of Idaho's Aquatic Research Institute, and the Idaho Department of Fish and Game is important for restoration. |
format |
Article in Journal/Newspaper |
author |
Hardy, Ryan Paragamian, Vaughn L. |
spellingShingle |
Hardy, Ryan Paragamian, Vaughn L. A Synthesis of Kootenai River Burbot Stock History and Future Management Goals |
author_facet |
Hardy, Ryan Paragamian, Vaughn L. |
author_sort |
Hardy, Ryan |
title |
A Synthesis of Kootenai River Burbot Stock History and Future Management Goals |
title_short |
A Synthesis of Kootenai River Burbot Stock History and Future Management Goals |
title_full |
A Synthesis of Kootenai River Burbot Stock History and Future Management Goals |
title_fullStr |
A Synthesis of Kootenai River Burbot Stock History and Future Management Goals |
title_full_unstemmed |
A Synthesis of Kootenai River Burbot Stock History and Future Management Goals |
title_sort |
synthesis of kootenai river burbot stock history and future management goals |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1080/00028487.2013.790845 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1080/00028487.2013.790845 |
genre |
Burbot Lota lota lota |
genre_facet |
Burbot Lota lota lota |
op_source |
Transactions of the American Fisheries Society volume 142, issue 6, page 1662-1670 ISSN 0002-8487 1548-8659 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1080/00028487.2013.790845 |
container_title |
Transactions of the American Fisheries Society |
container_volume |
142 |
container_issue |
6 |
container_start_page |
1662 |
op_container_end_page |
1670 |
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1800749285111758848 |