American eel resilience to simulated fluid shear associated with passage through hydroelectric turbines
American eel (Anguilla rostrata) populations have declined within their native range along the eastern coast of North America due to factors such as commercial fishing, habitat alteration, and dams. American eel are catadromous fish species, and high mortality rates (>40%) have been observed for...
Published in: | Knowledge & Management of Aquatic Ecosystems |
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Online Access: | https://doi.org/10.1051/kmae/2021017 https://doaj.org/article/1bd8f441fa2c486f87a32c1cf83b47f6 |
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ftdoajarticles:oai:doaj.org/article:1bd8f441fa2c486f87a32c1cf83b47f6 2023-05-15T16:08:41+02:00 American eel resilience to simulated fluid shear associated with passage through hydroelectric turbines Pflugrath Brett D. Mueller Robert P. Engbrecht Kristin Colotelo Alison H. 2021-01-01T00:00:00Z https://doi.org/10.1051/kmae/2021017 https://doaj.org/article/1bd8f441fa2c486f87a32c1cf83b47f6 EN eng EDP Sciences https://www.kmae-journal.org/articles/kmae/full_html/2021/01/kmae200155/kmae200155.html https://doaj.org/toc/1961-9502 1961-9502 doi:10.1051/kmae/2021017 https://doaj.org/article/1bd8f441fa2c486f87a32c1cf83b47f6 Knowledge and Management of Aquatic Ecosystems, Vol 0, Iss 422, p 20 (2021) fish passage hydropower water jet stressor morphology Aquaculture. Fisheries. Angling SH1-691 article 2021 ftdoajarticles https://doi.org/10.1051/kmae/2021017 2022-12-31T09:09:34Z American eel (Anguilla rostrata) populations have declined within their native range along the eastern coast of North America due to factors such as commercial fishing, habitat alteration, and dams. American eel are catadromous fish species, and high mortality rates (>40%) have been observed for freshwater life-stage adult eel passing downstream through hydropower turbines. Lacerations and sectioning of fish have been observed downstream of turbines and these injuries are commonly associated with direct contact with the turbine runner, whether through blade strike or pinching and grinding. Exposure to fluid shear may also be a source of injury, however, little is known about American eel susceptibility to this physical stressor. Eels are considerably flexible when compared to other fish species and lack other morphological characteristics that would make them susceptible to fluid shear, such as protruding eyes, large scales, and large operculum. European eel, which have previously been tested for susceptibility to fluid shear, were found to be resilient. To determine if American eel are also resilient to fluid shear, forty American eel were exposed to a water jet, simulating severe fluid shear (strain rate > 800 s−1) that fish may experience when passing downstream through turbines. No immediate or delayed (48 h) signs of injury were observed after exposure to severe fluid shear. Based on this study, and a previous study conducted on American eel susceptibility to barotrauma, the source of injury and mortality of American eel passing through turbines is likely attributed to blade strike or pinching and grinding. Article in Journal/Newspaper European eel Directory of Open Access Journals: DOAJ Articles Knowledge & Management of Aquatic Ecosystems 422 20 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
fish passage hydropower water jet stressor morphology Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
fish passage hydropower water jet stressor morphology Aquaculture. Fisheries. Angling SH1-691 Pflugrath Brett D. Mueller Robert P. Engbrecht Kristin Colotelo Alison H. American eel resilience to simulated fluid shear associated with passage through hydroelectric turbines |
topic_facet |
fish passage hydropower water jet stressor morphology Aquaculture. Fisheries. Angling SH1-691 |
description |
American eel (Anguilla rostrata) populations have declined within their native range along the eastern coast of North America due to factors such as commercial fishing, habitat alteration, and dams. American eel are catadromous fish species, and high mortality rates (>40%) have been observed for freshwater life-stage adult eel passing downstream through hydropower turbines. Lacerations and sectioning of fish have been observed downstream of turbines and these injuries are commonly associated with direct contact with the turbine runner, whether through blade strike or pinching and grinding. Exposure to fluid shear may also be a source of injury, however, little is known about American eel susceptibility to this physical stressor. Eels are considerably flexible when compared to other fish species and lack other morphological characteristics that would make them susceptible to fluid shear, such as protruding eyes, large scales, and large operculum. European eel, which have previously been tested for susceptibility to fluid shear, were found to be resilient. To determine if American eel are also resilient to fluid shear, forty American eel were exposed to a water jet, simulating severe fluid shear (strain rate > 800 s−1) that fish may experience when passing downstream through turbines. No immediate or delayed (48 h) signs of injury were observed after exposure to severe fluid shear. Based on this study, and a previous study conducted on American eel susceptibility to barotrauma, the source of injury and mortality of American eel passing through turbines is likely attributed to blade strike or pinching and grinding. |
format |
Article in Journal/Newspaper |
author |
Pflugrath Brett D. Mueller Robert P. Engbrecht Kristin Colotelo Alison H. |
author_facet |
Pflugrath Brett D. Mueller Robert P. Engbrecht Kristin Colotelo Alison H. |
author_sort |
Pflugrath Brett D. |
title |
American eel resilience to simulated fluid shear associated with passage through hydroelectric turbines |
title_short |
American eel resilience to simulated fluid shear associated with passage through hydroelectric turbines |
title_full |
American eel resilience to simulated fluid shear associated with passage through hydroelectric turbines |
title_fullStr |
American eel resilience to simulated fluid shear associated with passage through hydroelectric turbines |
title_full_unstemmed |
American eel resilience to simulated fluid shear associated with passage through hydroelectric turbines |
title_sort |
american eel resilience to simulated fluid shear associated with passage through hydroelectric turbines |
publisher |
EDP Sciences |
publishDate |
2021 |
url |
https://doi.org/10.1051/kmae/2021017 https://doaj.org/article/1bd8f441fa2c486f87a32c1cf83b47f6 |
genre |
European eel |
genre_facet |
European eel |
op_source |
Knowledge and Management of Aquatic Ecosystems, Vol 0, Iss 422, p 20 (2021) |
op_relation |
https://www.kmae-journal.org/articles/kmae/full_html/2021/01/kmae200155/kmae200155.html https://doaj.org/toc/1961-9502 1961-9502 doi:10.1051/kmae/2021017 https://doaj.org/article/1bd8f441fa2c486f87a32c1cf83b47f6 |
op_doi |
https://doi.org/10.1051/kmae/2021017 |
container_title |
Knowledge & Management of Aquatic Ecosystems |
container_issue |
422 |
container_start_page |
20 |
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1766404696463900672 |