Adult Atlantic salmon ( Salmo salar ) delayed below dams rapidly deplete energy stores
Atlantic salmon ( Salmo salar) return to rivers in spring for an energetically costly upstream migration for spawning. These fish are often delayed in the lower river below dams, subjecting them to warmer waters than occur in upstream sections of river, that may increase metabolic costs. We sought t...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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2023
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Online Access: | http://dx.doi.org/10.1139/cjfas-2022-0008 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2022-0008 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2022-0008 |
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crcansciencepubl:10.1139/cjfas-2022-0008 2023-12-17T10:27:14+01:00 Adult Atlantic salmon ( Salmo salar ) delayed below dams rapidly deplete energy stores Rubenstein, Sarah R. Peterson, Erin Christman, Paul Zydlewski, Joseph D. 2023 http://dx.doi.org/10.1139/cjfas-2022-0008 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2022-0008 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2022-0008 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 80, issue 1, page 170-182 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2023 crcansciencepubl https://doi.org/10.1139/cjfas-2022-0008 2023-11-19T13:39:38Z Atlantic salmon ( Salmo salar) return to rivers in spring for an energetically costly upstream migration for spawning. These fish are often delayed in the lower river below dams, subjecting them to warmer waters than occur in upstream sections of river, that may increase metabolic costs. We sought to quantify the energetic cost of dam-mediated delays in migrating adults in the Penobscot and Kennebec rivers, ME. We radio-tagged fish at the lower most dams, released them downstream (18 and 14 km), and tracked their movements back upstream. We used a Distell Fish Fatmeter as a noninvasive measurement of full-body energy at tagging and then again after re-ascending the fish-way at the dams. We found that adults ( n = 99) experienced average delays of 16–23 days at dams, losing 11%–22% of initial fat reserves. Using linear regressions, we showed thermal experience as a strong predictor of fat loss. Delay time was also a contributing factor. Extensive delays at dams expose migrating Atlantic salmon to warmer temperatures and increase the depletion rate of energy reserves required for spawning and post-spawn survival. Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Rubenstein, Sarah R. Peterson, Erin Christman, Paul Zydlewski, Joseph D. Adult Atlantic salmon ( Salmo salar ) delayed below dams rapidly deplete energy stores |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Atlantic salmon ( Salmo salar) return to rivers in spring for an energetically costly upstream migration for spawning. These fish are often delayed in the lower river below dams, subjecting them to warmer waters than occur in upstream sections of river, that may increase metabolic costs. We sought to quantify the energetic cost of dam-mediated delays in migrating adults in the Penobscot and Kennebec rivers, ME. We radio-tagged fish at the lower most dams, released them downstream (18 and 14 km), and tracked their movements back upstream. We used a Distell Fish Fatmeter as a noninvasive measurement of full-body energy at tagging and then again after re-ascending the fish-way at the dams. We found that adults ( n = 99) experienced average delays of 16–23 days at dams, losing 11%–22% of initial fat reserves. Using linear regressions, we showed thermal experience as a strong predictor of fat loss. Delay time was also a contributing factor. Extensive delays at dams expose migrating Atlantic salmon to warmer temperatures and increase the depletion rate of energy reserves required for spawning and post-spawn survival. |
format |
Article in Journal/Newspaper |
author |
Rubenstein, Sarah R. Peterson, Erin Christman, Paul Zydlewski, Joseph D. |
author_facet |
Rubenstein, Sarah R. Peterson, Erin Christman, Paul Zydlewski, Joseph D. |
author_sort |
Rubenstein, Sarah R. |
title |
Adult Atlantic salmon ( Salmo salar ) delayed below dams rapidly deplete energy stores |
title_short |
Adult Atlantic salmon ( Salmo salar ) delayed below dams rapidly deplete energy stores |
title_full |
Adult Atlantic salmon ( Salmo salar ) delayed below dams rapidly deplete energy stores |
title_fullStr |
Adult Atlantic salmon ( Salmo salar ) delayed below dams rapidly deplete energy stores |
title_full_unstemmed |
Adult Atlantic salmon ( Salmo salar ) delayed below dams rapidly deplete energy stores |
title_sort |
adult atlantic salmon ( salmo salar ) delayed below dams rapidly deplete energy stores |
publisher |
Canadian Science Publishing |
publishDate |
2023 |
url |
http://dx.doi.org/10.1139/cjfas-2022-0008 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2022-0008 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2022-0008 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 80, issue 1, page 170-182 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2022-0008 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
_version_ |
1785579026410110976 |