Epizootics of wild fish induced by farm fish
The continuing decline of ocean fisheries and rise of global fish consumption has driven aquaculture growth by 10% annually over the last decade. The association of fish farms with disease emergence in sympatric wild fish stocks remains one of the most controversial and unresolved threats aquacultur...
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ftpubmed:oai:pubmedcentral.nih.gov:1591297 2023-05-15T17:52:52+02:00 Epizootics of wild fish induced by farm fish Krkošek, Martin Lewis, Mark A. Morton, Alexandra Frazer, L. Neil Volpe, John P. 2006-10-17 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1591297 http://www.ncbi.nlm.nih.gov/pubmed/17021017 https://doi.org/10.1073/pnas.0603525103 en eng National Academy of Sciences http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1591297 http://www.ncbi.nlm.nih.gov/pubmed/17021017 http://dx.doi.org/10.1073/pnas.0603525103 © 2006 by The National Academy of Sciences of the USA Biological Sciences Text 2006 ftpubmed https://doi.org/10.1073/pnas.0603525103 2013-08-31T07:51:24Z The continuing decline of ocean fisheries and rise of global fish consumption has driven aquaculture growth by 10% annually over the last decade. The association of fish farms with disease emergence in sympatric wild fish stocks remains one of the most controversial and unresolved threats aquaculture poses to coastal ecosystems and fisheries. We report a comprehensive analysis of the spread and impact of farm-origin parasites on the survival of wild fish populations. We mathematically coupled extensive data sets of native parasitic sea lice (Lepeophtheirus salmonis) transmission and pathogenicity on migratory wild juvenile pink (Oncorhynchus gorbuscha) and chum (Oncorhynchus keta) salmon. Farm-origin lice induced 9–95% mortality in several sympatric wild juvenile pink and chum salmon populations. The epizootics arise through a mechanism that is new to our understanding of emerging infectious diseases: fish farms undermine a functional role of host migration in protecting juvenile hosts from parasites associated with adult hosts. Although the migratory life cycles of Pacific salmon naturally separate adults from juveniles, fish farms provide L. salmonis novel access to juvenile hosts, in this case raising infection rates for at least the first ≈2.5 months of the salmon's marine life (≈80 km of the migration route). Spatial segregation between juveniles and adults is common among temperate marine fishes, and as aquaculture continues its rapid growth, this disease mechanism may challenge the sustainability of coastal ecosystems and economies. Text Oncorhynchus gorbuscha PubMed Central (PMC) Keta ENVELOPE(-19.455,-19.455,65.656,65.656) Pacific Proceedings of the National Academy of Sciences 103 42 15506 15510 |
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Biological Sciences Krkošek, Martin Lewis, Mark A. Morton, Alexandra Frazer, L. Neil Volpe, John P. Epizootics of wild fish induced by farm fish |
topic_facet |
Biological Sciences |
description |
The continuing decline of ocean fisheries and rise of global fish consumption has driven aquaculture growth by 10% annually over the last decade. The association of fish farms with disease emergence in sympatric wild fish stocks remains one of the most controversial and unresolved threats aquaculture poses to coastal ecosystems and fisheries. We report a comprehensive analysis of the spread and impact of farm-origin parasites on the survival of wild fish populations. We mathematically coupled extensive data sets of native parasitic sea lice (Lepeophtheirus salmonis) transmission and pathogenicity on migratory wild juvenile pink (Oncorhynchus gorbuscha) and chum (Oncorhynchus keta) salmon. Farm-origin lice induced 9–95% mortality in several sympatric wild juvenile pink and chum salmon populations. The epizootics arise through a mechanism that is new to our understanding of emerging infectious diseases: fish farms undermine a functional role of host migration in protecting juvenile hosts from parasites associated with adult hosts. Although the migratory life cycles of Pacific salmon naturally separate adults from juveniles, fish farms provide L. salmonis novel access to juvenile hosts, in this case raising infection rates for at least the first ≈2.5 months of the salmon's marine life (≈80 km of the migration route). Spatial segregation between juveniles and adults is common among temperate marine fishes, and as aquaculture continues its rapid growth, this disease mechanism may challenge the sustainability of coastal ecosystems and economies. |
format |
Text |
author |
Krkošek, Martin Lewis, Mark A. Morton, Alexandra Frazer, L. Neil Volpe, John P. |
author_facet |
Krkošek, Martin Lewis, Mark A. Morton, Alexandra Frazer, L. Neil Volpe, John P. |
author_sort |
Krkošek, Martin |
title |
Epizootics of wild fish induced by farm fish |
title_short |
Epizootics of wild fish induced by farm fish |
title_full |
Epizootics of wild fish induced by farm fish |
title_fullStr |
Epizootics of wild fish induced by farm fish |
title_full_unstemmed |
Epizootics of wild fish induced by farm fish |
title_sort |
epizootics of wild fish induced by farm fish |
publisher |
National Academy of Sciences |
publishDate |
2006 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1591297 http://www.ncbi.nlm.nih.gov/pubmed/17021017 https://doi.org/10.1073/pnas.0603525103 |
long_lat |
ENVELOPE(-19.455,-19.455,65.656,65.656) |
geographic |
Keta Pacific |
geographic_facet |
Keta Pacific |
genre |
Oncorhynchus gorbuscha |
genre_facet |
Oncorhynchus gorbuscha |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1591297 http://www.ncbi.nlm.nih.gov/pubmed/17021017 http://dx.doi.org/10.1073/pnas.0603525103 |
op_rights |
© 2006 by The National Academy of Sciences of the USA |
op_doi |
https://doi.org/10.1073/pnas.0603525103 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
103 |
container_issue |
42 |
container_start_page |
15506 |
op_container_end_page |
15510 |
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1766160616242806784 |