Cessation of a salmon decline with control of parasites
The resilience of coastal social-ecological systems may depend on adaptive responses to aquaculture disease outbreaks that can threaten wild and farm fish. A nine-year study of parasitic sea lice (Lepeophtheirus salmonis) and pink salmon (Oncorhynchus gorbuscha) from Pacific Canada indicates that ad...
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Online Access: | https://era.library.ualberta.ca/items/40e60b02-a9db-4c83-9dce-bb7b7de688d3 https://doi.org/10.7939/R39G5GD9W |
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ftunivalberta:oai:era.library.ualberta.ca:40e60b02-a9db-4c83-9dce-bb7b7de688d3 2024-06-23T07:55:56+00:00 Cessation of a salmon decline with control of parasites Krkosek, Martin Orr, Craig Peacock, Stephanie J. Proboszcz, Stan Lewis, Mark A. 2013-01-01 https://era.library.ualberta.ca/items/40e60b02-a9db-4c83-9dce-bb7b7de688d3 https://doi.org/10.7939/R39G5GD9W English eng https://era.library.ualberta.ca/items/40e60b02-a9db-4c83-9dce-bb7b7de688d3 doi:10.7939/R39G5GD9W © The Ecological Society of America Migration Aquaculture Parasiticide Adaptive management Lepeophtheirus salmonis Sea lice Salmon Host-parasite Article (Published) 2013 ftunivalberta https://doi.org/10.7939/R39G5GD9W 2024-06-03T03:09:00Z The resilience of coastal social-ecological systems may depend on adaptive responses to aquaculture disease outbreaks that can threaten wild and farm fish. A nine-year study of parasitic sea lice (Lepeophtheirus salmonis) and pink salmon (Oncorhynchus gorbuscha) from Pacific Canada indicates that adaptive changes in parasite management on salmon farms have yielded positive conservation outcomes. After four years of sea lice epizootics and wild salmon population decline, parasiticide application on salmon farms was adapted to the timing of wild salmon migrations. Winter treatment of farm fish with parasiticides, prior to the outmigration of wild juvenile salmon, has reduced epizootics of wild salmon without significantly increasing the annual number of treatments. Levels of parasites on wild juvenile salmon significantly influence the growth rate of affected salmon populations, suggesting that these changes in management have had positive outcomes for wild salmon populations. These adaptive changes have not occurred through formal adaptive management, but rather, through multi-stakeholder processes arising from a contentious scientific and public debate. Despite the apparent success of parasite control on salmon farms in the study region, there remain concerns about the long-term sustainability of this approach because of the unknown ecological effects of parasticides and the potential for parasite resistance to chemical treatments. Article in Journal/Newspaper Oncorhynchus gorbuscha Pink salmon University of Alberta: Era - Education and Research Archive Canada Pacific |
institution |
Open Polar |
collection |
University of Alberta: Era - Education and Research Archive |
op_collection_id |
ftunivalberta |
language |
English |
topic |
Migration Aquaculture Parasiticide Adaptive management Lepeophtheirus salmonis Sea lice Salmon Host-parasite |
spellingShingle |
Migration Aquaculture Parasiticide Adaptive management Lepeophtheirus salmonis Sea lice Salmon Host-parasite Krkosek, Martin Orr, Craig Peacock, Stephanie J. Proboszcz, Stan Lewis, Mark A. Cessation of a salmon decline with control of parasites |
topic_facet |
Migration Aquaculture Parasiticide Adaptive management Lepeophtheirus salmonis Sea lice Salmon Host-parasite |
description |
The resilience of coastal social-ecological systems may depend on adaptive responses to aquaculture disease outbreaks that can threaten wild and farm fish. A nine-year study of parasitic sea lice (Lepeophtheirus salmonis) and pink salmon (Oncorhynchus gorbuscha) from Pacific Canada indicates that adaptive changes in parasite management on salmon farms have yielded positive conservation outcomes. After four years of sea lice epizootics and wild salmon population decline, parasiticide application on salmon farms was adapted to the timing of wild salmon migrations. Winter treatment of farm fish with parasiticides, prior to the outmigration of wild juvenile salmon, has reduced epizootics of wild salmon without significantly increasing the annual number of treatments. Levels of parasites on wild juvenile salmon significantly influence the growth rate of affected salmon populations, suggesting that these changes in management have had positive outcomes for wild salmon populations. These adaptive changes have not occurred through formal adaptive management, but rather, through multi-stakeholder processes arising from a contentious scientific and public debate. Despite the apparent success of parasite control on salmon farms in the study region, there remain concerns about the long-term sustainability of this approach because of the unknown ecological effects of parasticides and the potential for parasite resistance to chemical treatments. |
format |
Article in Journal/Newspaper |
author |
Krkosek, Martin Orr, Craig Peacock, Stephanie J. Proboszcz, Stan Lewis, Mark A. |
author_facet |
Krkosek, Martin Orr, Craig Peacock, Stephanie J. Proboszcz, Stan Lewis, Mark A. |
author_sort |
Krkosek, Martin |
title |
Cessation of a salmon decline with control of parasites |
title_short |
Cessation of a salmon decline with control of parasites |
title_full |
Cessation of a salmon decline with control of parasites |
title_fullStr |
Cessation of a salmon decline with control of parasites |
title_full_unstemmed |
Cessation of a salmon decline with control of parasites |
title_sort |
cessation of a salmon decline with control of parasites |
publishDate |
2013 |
url |
https://era.library.ualberta.ca/items/40e60b02-a9db-4c83-9dce-bb7b7de688d3 https://doi.org/10.7939/R39G5GD9W |
geographic |
Canada Pacific |
geographic_facet |
Canada Pacific |
genre |
Oncorhynchus gorbuscha Pink salmon |
genre_facet |
Oncorhynchus gorbuscha Pink salmon |
op_relation |
https://era.library.ualberta.ca/items/40e60b02-a9db-4c83-9dce-bb7b7de688d3 doi:10.7939/R39G5GD9W |
op_rights |
© The Ecological Society of America |
op_doi |
https://doi.org/10.7939/R39G5GD9W |
_version_ |
1802648747954405376 |