Population genetic differentiation of sea lice ( Lepeophtheirus salmonis ) parasitic on Atlantic and Pacific salmonids: analyses of microsatellite DNA variation among wild and farmed hosts
The copepod Lepeophtheirus salmonis is ectoparasitic on Atlantic and Pacific wild salmonids. It is a major pest to Atlantic salmon (Salmo salar) aquaculture and may be implicated in recent declines of certain European wild salmonid stocks. Variation at six microsatellite loci was assessed among L. s...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2004
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/population-genetic-differentiation-of-sea-lice-lepeophtheirus-salmonis-parasitic-on-atlantic-and-pacific-salmonids-analyses-of-microsatellite-dna-variation-among-wild-and-farmed-hosts(c409c587-6272-45e0-ab2a-05e8274cb20c).html https://doi.org/10.1139/f04-069 http://www.scopus.com/inward/record.url?scp=7044267469&partnerID=8YFLogxK |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/c409c587-6272-45e0-ab2a-05e8274cb20c 2023-05-15T15:30:46+02:00 Population genetic differentiation of sea lice ( Lepeophtheirus salmonis ) parasitic on Atlantic and Pacific salmonids: analyses of microsatellite DNA variation among wild and farmed hosts Todd, Christopher David Walker, AM Ritchie, Michael Gordon Graves, Jefferson Alden Walker, AF 2004-07 https://risweb.st-andrews.ac.uk/portal/en/researchoutput/population-genetic-differentiation-of-sea-lice-lepeophtheirus-salmonis-parasitic-on-atlantic-and-pacific-salmonids-analyses-of-microsatellite-dna-variation-among-wild-and-farmed-hosts(c409c587-6272-45e0-ab2a-05e8274cb20c).html https://doi.org/10.1139/f04-069 http://www.scopus.com/inward/record.url?scp=7044267469&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Todd , C D , Walker , AM , Ritchie , M G , Graves , J A & Walker , AF 2004 , ' Population genetic differentiation of sea lice ( Lepeophtheirus salmonis ) parasitic on Atlantic and Pacific salmonids: analyses of microsatellite DNA variation among wild and farmed hosts ' , Canadian Journal of Fisheries and Aquatic Sciences , vol. 61 , no. 7 , pp. 1176-1190 . https://doi.org/10.1139/f04-069 MOSQUITO CULEX-PIPIENS SALAR L. TRUTTA L. INSECTICIDE RESISTANCE WEST-COAST KROYER LOUSE TROUT CALIGIDAE COPEPODA article 2004 ftunstandrewcris https://doi.org/10.1139/f04-069 2021-12-26T14:12:37Z The copepod Lepeophtheirus salmonis is ectoparasitic on Atlantic and Pacific wild salmonids. It is a major pest to Atlantic salmon (Salmo salar) aquaculture and may be implicated in recent declines of certain European wild salmonid stocks. Variation at six microsatellite loci was assessed among L. salmonis from wild and farmed salmonids in Scotland, wild sea-run brown trout (Salmo trutta) in Norway, and farmed Atlantic salmon in eastern Canada. An outgroup North Pacific sample was obtained from farmed Atlantic salmon in British Columbia. No significant differentiation was found between L. salmonis from the host species or among samples from throughout the North Atlantic. This is consistent with long-distance oceanic migration of wild hosts and larval interchange between farmed and wild host stocks being sufficient to prevent genetic divergence of L. salmonis throughout the North Atlantic. These results have important management implications for both wild stock conservation and aquaculture in that genetically, L. salmonis in the North Atlantic comprises a single population: there is no evidence of isolation of populations on farmed hosts from those on wild fish. Comparison between North Pacific and North Atlantic L. salmonis populations showed significant but low differentiation (F-ST = 0.06). Article in Journal/Newspaper Atlantic salmon North Atlantic Salmo salar University of St Andrews: Research Portal British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Canada Norway Pacific Canadian Journal of Fisheries and Aquatic Sciences 61 7 1176 1190 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
MOSQUITO CULEX-PIPIENS SALAR L. TRUTTA L. INSECTICIDE RESISTANCE WEST-COAST KROYER LOUSE TROUT CALIGIDAE COPEPODA |
spellingShingle |
MOSQUITO CULEX-PIPIENS SALAR L. TRUTTA L. INSECTICIDE RESISTANCE WEST-COAST KROYER LOUSE TROUT CALIGIDAE COPEPODA Todd, Christopher David Walker, AM Ritchie, Michael Gordon Graves, Jefferson Alden Walker, AF Population genetic differentiation of sea lice ( Lepeophtheirus salmonis ) parasitic on Atlantic and Pacific salmonids: analyses of microsatellite DNA variation among wild and farmed hosts |
topic_facet |
MOSQUITO CULEX-PIPIENS SALAR L. TRUTTA L. INSECTICIDE RESISTANCE WEST-COAST KROYER LOUSE TROUT CALIGIDAE COPEPODA |
description |
The copepod Lepeophtheirus salmonis is ectoparasitic on Atlantic and Pacific wild salmonids. It is a major pest to Atlantic salmon (Salmo salar) aquaculture and may be implicated in recent declines of certain European wild salmonid stocks. Variation at six microsatellite loci was assessed among L. salmonis from wild and farmed salmonids in Scotland, wild sea-run brown trout (Salmo trutta) in Norway, and farmed Atlantic salmon in eastern Canada. An outgroup North Pacific sample was obtained from farmed Atlantic salmon in British Columbia. No significant differentiation was found between L. salmonis from the host species or among samples from throughout the North Atlantic. This is consistent with long-distance oceanic migration of wild hosts and larval interchange between farmed and wild host stocks being sufficient to prevent genetic divergence of L. salmonis throughout the North Atlantic. These results have important management implications for both wild stock conservation and aquaculture in that genetically, L. salmonis in the North Atlantic comprises a single population: there is no evidence of isolation of populations on farmed hosts from those on wild fish. Comparison between North Pacific and North Atlantic L. salmonis populations showed significant but low differentiation (F-ST = 0.06). |
format |
Article in Journal/Newspaper |
author |
Todd, Christopher David Walker, AM Ritchie, Michael Gordon Graves, Jefferson Alden Walker, AF |
author_facet |
Todd, Christopher David Walker, AM Ritchie, Michael Gordon Graves, Jefferson Alden Walker, AF |
author_sort |
Todd, Christopher David |
title |
Population genetic differentiation of sea lice ( Lepeophtheirus salmonis ) parasitic on Atlantic and Pacific salmonids: analyses of microsatellite DNA variation among wild and farmed hosts |
title_short |
Population genetic differentiation of sea lice ( Lepeophtheirus salmonis ) parasitic on Atlantic and Pacific salmonids: analyses of microsatellite DNA variation among wild and farmed hosts |
title_full |
Population genetic differentiation of sea lice ( Lepeophtheirus salmonis ) parasitic on Atlantic and Pacific salmonids: analyses of microsatellite DNA variation among wild and farmed hosts |
title_fullStr |
Population genetic differentiation of sea lice ( Lepeophtheirus salmonis ) parasitic on Atlantic and Pacific salmonids: analyses of microsatellite DNA variation among wild and farmed hosts |
title_full_unstemmed |
Population genetic differentiation of sea lice ( Lepeophtheirus salmonis ) parasitic on Atlantic and Pacific salmonids: analyses of microsatellite DNA variation among wild and farmed hosts |
title_sort |
population genetic differentiation of sea lice ( lepeophtheirus salmonis ) parasitic on atlantic and pacific salmonids: analyses of microsatellite dna variation among wild and farmed hosts |
publishDate |
2004 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/population-genetic-differentiation-of-sea-lice-lepeophtheirus-salmonis-parasitic-on-atlantic-and-pacific-salmonids-analyses-of-microsatellite-dna-variation-among-wild-and-farmed-hosts(c409c587-6272-45e0-ab2a-05e8274cb20c).html https://doi.org/10.1139/f04-069 http://www.scopus.com/inward/record.url?scp=7044267469&partnerID=8YFLogxK |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) |
geographic |
British Columbia Canada Norway Pacific |
geographic_facet |
British Columbia Canada Norway Pacific |
genre |
Atlantic salmon North Atlantic Salmo salar |
genre_facet |
Atlantic salmon North Atlantic Salmo salar |
op_source |
Todd , C D , Walker , AM , Ritchie , M G , Graves , J A & Walker , AF 2004 , ' Population genetic differentiation of sea lice ( Lepeophtheirus salmonis ) parasitic on Atlantic and Pacific salmonids: analyses of microsatellite DNA variation among wild and farmed hosts ' , Canadian Journal of Fisheries and Aquatic Sciences , vol. 61 , no. 7 , pp. 1176-1190 . https://doi.org/10.1139/f04-069 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1139/f04-069 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
61 |
container_issue |
7 |
container_start_page |
1176 |
op_container_end_page |
1190 |
_version_ |
1766361213192634368 |