Evidence for sea lice-induced marine mortality of Atlantic salmon ( Salmo salar ) in western Ireland from experimental releases of ranched smolts treated with emamectin benzoate.
Sea trout (Salmo trutta L.) stock collapses in coastal areas of western Ireland subject to salmon aquaculture were contemporaneous with high abundances of larval sea lice (Lepeophtheirus salmonis Krøyer) on juvenile sea trout. Whereas sea trout remain in near-shore waters throughout their marine mig...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2012
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/evidence-for-sea-liceinduced-marine-mortality-of-atlantic-salmon-salmo-salar-in-western-ireland-from-experimental-releases-of-ranched-smolts-treated-with-emamectin-benzoate(5e2abb87-baa0-45ef-8a3c-f95a8954f098).html https://doi.org/10.1139/f2011-155 |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/5e2abb87-baa0-45ef-8a3c-f95a8954f098 2023-05-15T15:29:29+02:00 Evidence for sea lice-induced marine mortality of Atlantic salmon ( Salmo salar ) in western Ireland from experimental releases of ranched smolts treated with emamectin benzoate. Gargan, Patrick Forde, Gregory Hazon, Neil Russell, Deborah Jill Todd, Christopher David 2012-02-02 https://risweb.st-andrews.ac.uk/portal/en/researchoutput/evidence-for-sea-liceinduced-marine-mortality-of-atlantic-salmon-salmo-salar-in-western-ireland-from-experimental-releases-of-ranched-smolts-treated-with-emamectin-benzoate(5e2abb87-baa0-45ef-8a3c-f95a8954f098).html https://doi.org/10.1139/f2011-155 eng eng info:eu-repo/semantics/closedAccess Gargan , P , Forde , G , Hazon , N , Russell , D J & Todd , C D 2012 , ' Evidence for sea lice-induced marine mortality of Atlantic salmon ( Salmo salar ) in western Ireland from experimental releases of ranched smolts treated with emamectin benzoate. ' , Canadian Journal of Fisheries and Aquatic Sciences , vol. 69 , no. 2 , pp. 343-353 . https://doi.org/10.1139/f2011-155 Atlantic salmon emamectin benzoate marine mortality salmon lice farm production cycles Lepeophtheirus-salmonis wild salmon Pacific salmon pink salmon post-smolt infection Scotland management article 2012 ftunstandrewcris https://doi.org/10.1139/f2011-155 2021-12-26T14:21:10Z Sea trout (Salmo trutta L.) stock collapses in coastal areas of western Ireland subject to salmon aquaculture were contemporaneous with high abundances of larval sea lice (Lepeophtheirus salmonis Krøyer) on juvenile sea trout. Whereas sea trout remain in near-shore waters throughout their marine migration, Atlantic salmon (Salmo salar L.) smolts typically move quickly offshore into oceanic waters. It might therefore be predicted that salmon smolts would be less vulnerable to coastal stressors, and less likely to be negatively affected by infestations of sea lice early in their marine phase. Groups of micro-tagged, hatchery-reared Atlantic salmon smolts were fed either untreated pellets or pellets incorporating the in-feed sea louse treatment SLICE® (emamectin benzoate) prior to eight experimental releases in three marine locations over a 3-year period. In total 74,324 smolts were released and analysis of tag recaptures from returning adult salmon showed that emamectin-treated smolts experienced increased survivorship and were 1.8 times more likely to return compared to control fish. These results suggest that sea lice-induced mortality on adult Atlantic salmon returns in Ireland can be significant, and that sea lice larvae emanating from farmed salmon may influence individual survivorship and population conservation status of wild salmon in these river systems. Article in Journal/Newspaper Atlantic salmon Pink salmon Salmo salar University of St Andrews: Research Portal Pacific Canadian Journal of Fisheries and Aquatic Sciences 69 2 343 353 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Atlantic salmon emamectin benzoate marine mortality salmon lice farm production cycles Lepeophtheirus-salmonis wild salmon Pacific salmon pink salmon post-smolt infection Scotland management |
spellingShingle |
Atlantic salmon emamectin benzoate marine mortality salmon lice farm production cycles Lepeophtheirus-salmonis wild salmon Pacific salmon pink salmon post-smolt infection Scotland management Gargan, Patrick Forde, Gregory Hazon, Neil Russell, Deborah Jill Todd, Christopher David Evidence for sea lice-induced marine mortality of Atlantic salmon ( Salmo salar ) in western Ireland from experimental releases of ranched smolts treated with emamectin benzoate. |
topic_facet |
Atlantic salmon emamectin benzoate marine mortality salmon lice farm production cycles Lepeophtheirus-salmonis wild salmon Pacific salmon pink salmon post-smolt infection Scotland management |
description |
Sea trout (Salmo trutta L.) stock collapses in coastal areas of western Ireland subject to salmon aquaculture were contemporaneous with high abundances of larval sea lice (Lepeophtheirus salmonis Krøyer) on juvenile sea trout. Whereas sea trout remain in near-shore waters throughout their marine migration, Atlantic salmon (Salmo salar L.) smolts typically move quickly offshore into oceanic waters. It might therefore be predicted that salmon smolts would be less vulnerable to coastal stressors, and less likely to be negatively affected by infestations of sea lice early in their marine phase. Groups of micro-tagged, hatchery-reared Atlantic salmon smolts were fed either untreated pellets or pellets incorporating the in-feed sea louse treatment SLICE® (emamectin benzoate) prior to eight experimental releases in three marine locations over a 3-year period. In total 74,324 smolts were released and analysis of tag recaptures from returning adult salmon showed that emamectin-treated smolts experienced increased survivorship and were 1.8 times more likely to return compared to control fish. These results suggest that sea lice-induced mortality on adult Atlantic salmon returns in Ireland can be significant, and that sea lice larvae emanating from farmed salmon may influence individual survivorship and population conservation status of wild salmon in these river systems. |
format |
Article in Journal/Newspaper |
author |
Gargan, Patrick Forde, Gregory Hazon, Neil Russell, Deborah Jill Todd, Christopher David |
author_facet |
Gargan, Patrick Forde, Gregory Hazon, Neil Russell, Deborah Jill Todd, Christopher David |
author_sort |
Gargan, Patrick |
title |
Evidence for sea lice-induced marine mortality of Atlantic salmon ( Salmo salar ) in western Ireland from experimental releases of ranched smolts treated with emamectin benzoate. |
title_short |
Evidence for sea lice-induced marine mortality of Atlantic salmon ( Salmo salar ) in western Ireland from experimental releases of ranched smolts treated with emamectin benzoate. |
title_full |
Evidence for sea lice-induced marine mortality of Atlantic salmon ( Salmo salar ) in western Ireland from experimental releases of ranched smolts treated with emamectin benzoate. |
title_fullStr |
Evidence for sea lice-induced marine mortality of Atlantic salmon ( Salmo salar ) in western Ireland from experimental releases of ranched smolts treated with emamectin benzoate. |
title_full_unstemmed |
Evidence for sea lice-induced marine mortality of Atlantic salmon ( Salmo salar ) in western Ireland from experimental releases of ranched smolts treated with emamectin benzoate. |
title_sort |
evidence for sea lice-induced marine mortality of atlantic salmon ( salmo salar ) in western ireland from experimental releases of ranched smolts treated with emamectin benzoate. |
publishDate |
2012 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/evidence-for-sea-liceinduced-marine-mortality-of-atlantic-salmon-salmo-salar-in-western-ireland-from-experimental-releases-of-ranched-smolts-treated-with-emamectin-benzoate(5e2abb87-baa0-45ef-8a3c-f95a8954f098).html https://doi.org/10.1139/f2011-155 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Atlantic salmon Pink salmon Salmo salar |
genre_facet |
Atlantic salmon Pink salmon Salmo salar |
op_source |
Gargan , P , Forde , G , Hazon , N , Russell , D J & Todd , C D 2012 , ' Evidence for sea lice-induced marine mortality of Atlantic salmon ( Salmo salar ) in western Ireland from experimental releases of ranched smolts treated with emamectin benzoate. ' , Canadian Journal of Fisheries and Aquatic Sciences , vol. 69 , no. 2 , pp. 343-353 . https://doi.org/10.1139/f2011-155 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1139/f2011-155 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
69 |
container_issue |
2 |
container_start_page |
343 |
op_container_end_page |
353 |
_version_ |
1766359903249629184 |