Transmission dynamics of parasitic sea lice from farm to wild salmon
Marine salmon farming has been correlated with parasitic sea lice infestations and concurrent declines of wild salmonids. Here, we report a quantitative analysis of how a single salmon farm altered the natural transmission dynamics of sea lice to juvenile Pacific salmon. We studied infections of sea...
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ftpubmed:oai:pubmedcentral.nih.gov:1602048 2023-05-15T17:52:52+02:00 Transmission dynamics of parasitic sea lice from farm to wild salmon Krkošek, Martin Lewis, Mark A Volpe, John P 2005-04-01 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1602048 http://www.ncbi.nlm.nih.gov/pubmed/15870031 https://doi.org/10.1098/rspb.2004.3027 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1602048 http://www.ncbi.nlm.nih.gov/pubmed/15870031 http://dx.doi.org/10.1098/rspb.2004.3027 © 2005 The Royal Society Research Article Text 2005 ftpubmed https://doi.org/10.1098/rspb.2004.3027 2013-08-31T08:24:01Z Marine salmon farming has been correlated with parasitic sea lice infestations and concurrent declines of wild salmonids. Here, we report a quantitative analysis of how a single salmon farm altered the natural transmission dynamics of sea lice to juvenile Pacific salmon. We studied infections of sea lice (Lepeophtheirus salmonis and Caligus clemensi ) on juvenile pink salmon (Oncorhynchus gorbuscha) and chum salmon (Oncorhynchus keta) as they passed an isolated salmon farm during their seaward migration down two long and narrow corridors. Our calculations suggest the infection pressure imposed by the farm was four orders of magnitude greater than ambient levels, resulting in a maximum infection pressure near the farm that was 73 times greater than ambient levels and exceeded ambient levels for 30 km along the two wild salmon migration corridors. The farm-produced cohort of lice parasitizing the wild juvenile hosts reached reproductive maturity and produced a second generation of lice that re-infected the juvenile salmon. This raises the infection pressure from the farm by an additional order of magnitude, with a composite infection pressure that exceeds ambient levels for 75 km of the two migration routes. Amplified sea lice infestations due to salmon farms are a potential limiting factor to wild salmonid conservation. Text Oncorhynchus gorbuscha Pink salmon PubMed Central (PMC) Keta ENVELOPE(-19.455,-19.455,65.656,65.656) Pacific Proceedings of the Royal Society B: Biological Sciences 272 1564 689 696 |
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Research Article Krkošek, Martin Lewis, Mark A Volpe, John P Transmission dynamics of parasitic sea lice from farm to wild salmon |
topic_facet |
Research Article |
description |
Marine salmon farming has been correlated with parasitic sea lice infestations and concurrent declines of wild salmonids. Here, we report a quantitative analysis of how a single salmon farm altered the natural transmission dynamics of sea lice to juvenile Pacific salmon. We studied infections of sea lice (Lepeophtheirus salmonis and Caligus clemensi ) on juvenile pink salmon (Oncorhynchus gorbuscha) and chum salmon (Oncorhynchus keta) as they passed an isolated salmon farm during their seaward migration down two long and narrow corridors. Our calculations suggest the infection pressure imposed by the farm was four orders of magnitude greater than ambient levels, resulting in a maximum infection pressure near the farm that was 73 times greater than ambient levels and exceeded ambient levels for 30 km along the two wild salmon migration corridors. The farm-produced cohort of lice parasitizing the wild juvenile hosts reached reproductive maturity and produced a second generation of lice that re-infected the juvenile salmon. This raises the infection pressure from the farm by an additional order of magnitude, with a composite infection pressure that exceeds ambient levels for 75 km of the two migration routes. Amplified sea lice infestations due to salmon farms are a potential limiting factor to wild salmonid conservation. |
format |
Text |
author |
Krkošek, Martin Lewis, Mark A Volpe, John P |
author_facet |
Krkošek, Martin Lewis, Mark A Volpe, John P |
author_sort |
Krkošek, Martin |
title |
Transmission dynamics of parasitic sea lice from farm to wild salmon |
title_short |
Transmission dynamics of parasitic sea lice from farm to wild salmon |
title_full |
Transmission dynamics of parasitic sea lice from farm to wild salmon |
title_fullStr |
Transmission dynamics of parasitic sea lice from farm to wild salmon |
title_full_unstemmed |
Transmission dynamics of parasitic sea lice from farm to wild salmon |
title_sort |
transmission dynamics of parasitic sea lice from farm to wild salmon |
publisher |
The Royal Society |
publishDate |
2005 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1602048 http://www.ncbi.nlm.nih.gov/pubmed/15870031 https://doi.org/10.1098/rspb.2004.3027 |
long_lat |
ENVELOPE(-19.455,-19.455,65.656,65.656) |
geographic |
Keta Pacific |
geographic_facet |
Keta Pacific |
genre |
Oncorhynchus gorbuscha Pink salmon |
genre_facet |
Oncorhynchus gorbuscha Pink salmon |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1602048 http://www.ncbi.nlm.nih.gov/pubmed/15870031 http://dx.doi.org/10.1098/rspb.2004.3027 |
op_rights |
© 2005 The Royal Society |
op_doi |
https://doi.org/10.1098/rspb.2004.3027 |
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Proceedings of the Royal Society B: Biological Sciences |
container_volume |
272 |
container_issue |
1564 |
container_start_page |
689 |
op_container_end_page |
696 |
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1766160604380266496 |