Recent failure to control sea louse outbreaks on salmon in the Broughton Archipelago, British Columbia
The advent and growth of salmon farming has changed the epidemiology of some salmon diseases. In 2015, in the salmon-farming region of the Broughton Archipelago, British Columbia, an outbreak of native ectoparasitic copepods (sea lice; Lepeophtheirus salmonis) recurred in wild juvenile salmon after...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Online Access: | http://dx.doi.org/10.1139/cjfas-2016-0122 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2016-0122 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2016-0122 |
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crcansciencepubl:10.1139/cjfas-2016-0122 2024-05-12T08:09:28+00:00 Recent failure to control sea louse outbreaks on salmon in the Broughton Archipelago, British Columbia Bateman, Andrew W. Peacock, Stephanie J. Connors, Brendan Polk, Zephyr Berg, Dana Krkošek, Martin Morton, Alexandra 2016 http://dx.doi.org/10.1139/cjfas-2016-0122 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2016-0122 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2016-0122 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 73, issue 8, page 1164-1172 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2016 crcansciencepubl https://doi.org/10.1139/cjfas-2016-0122 2024-04-18T06:54:51Z The advent and growth of salmon farming has changed the epidemiology of some salmon diseases. In 2015, in the salmon-farming region of the Broughton Archipelago, British Columbia, an outbreak of native ectoparasitic copepods (sea lice; Lepeophtheirus salmonis) recurred in wild juvenile salmon after a decade of effective control. We draw on a 15-year data set of sea lice on wild and farmed salmon in the area to assess the evidence for four factors that may explain the recent outbreak: (i) poorly timed parasiticide treatments of farmed salmon relative to wild salmon migration, (ii) evolution of resistance to parasiticide treatments in sea lice, (iii) anomalous environmental conditions promoting louse population growth, and (iv) a high influx of lice with an abundant pink salmon (Oncorhynchus gorbuscha) return in 2014. We propose that a combination of poorly timed treatments and warm environmental conditions likely explains the outbreak. Where wild salmon conservation is a concern, a more effective approach to managing sea lice on wild and farmed salmon could incorporate the out-migration timing of wild juvenile salmon and information on environmental conditions. Article in Journal/Newspaper Oncorhynchus gorbuscha Pink salmon Copepods Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 73 8 1164 1172 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Bateman, Andrew W. Peacock, Stephanie J. Connors, Brendan Polk, Zephyr Berg, Dana Krkošek, Martin Morton, Alexandra Recent failure to control sea louse outbreaks on salmon in the Broughton Archipelago, British Columbia |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
The advent and growth of salmon farming has changed the epidemiology of some salmon diseases. In 2015, in the salmon-farming region of the Broughton Archipelago, British Columbia, an outbreak of native ectoparasitic copepods (sea lice; Lepeophtheirus salmonis) recurred in wild juvenile salmon after a decade of effective control. We draw on a 15-year data set of sea lice on wild and farmed salmon in the area to assess the evidence for four factors that may explain the recent outbreak: (i) poorly timed parasiticide treatments of farmed salmon relative to wild salmon migration, (ii) evolution of resistance to parasiticide treatments in sea lice, (iii) anomalous environmental conditions promoting louse population growth, and (iv) a high influx of lice with an abundant pink salmon (Oncorhynchus gorbuscha) return in 2014. We propose that a combination of poorly timed treatments and warm environmental conditions likely explains the outbreak. Where wild salmon conservation is a concern, a more effective approach to managing sea lice on wild and farmed salmon could incorporate the out-migration timing of wild juvenile salmon and information on environmental conditions. |
format |
Article in Journal/Newspaper |
author |
Bateman, Andrew W. Peacock, Stephanie J. Connors, Brendan Polk, Zephyr Berg, Dana Krkošek, Martin Morton, Alexandra |
author_facet |
Bateman, Andrew W. Peacock, Stephanie J. Connors, Brendan Polk, Zephyr Berg, Dana Krkošek, Martin Morton, Alexandra |
author_sort |
Bateman, Andrew W. |
title |
Recent failure to control sea louse outbreaks on salmon in the Broughton Archipelago, British Columbia |
title_short |
Recent failure to control sea louse outbreaks on salmon in the Broughton Archipelago, British Columbia |
title_full |
Recent failure to control sea louse outbreaks on salmon in the Broughton Archipelago, British Columbia |
title_fullStr |
Recent failure to control sea louse outbreaks on salmon in the Broughton Archipelago, British Columbia |
title_full_unstemmed |
Recent failure to control sea louse outbreaks on salmon in the Broughton Archipelago, British Columbia |
title_sort |
recent failure to control sea louse outbreaks on salmon in the broughton archipelago, british columbia |
publisher |
Canadian Science Publishing |
publishDate |
2016 |
url |
http://dx.doi.org/10.1139/cjfas-2016-0122 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2016-0122 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2016-0122 |
genre |
Oncorhynchus gorbuscha Pink salmon Copepods |
genre_facet |
Oncorhynchus gorbuscha Pink salmon Copepods |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 73, issue 8, page 1164-1172 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2016-0122 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
73 |
container_issue |
8 |
container_start_page |
1164 |
op_container_end_page |
1172 |
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1798852728501305344 |