Temporal variation in an immune response gene (MHC I) in anadromous Salmo trutta in an Irish river before and during aquaculture activities
Abstract Several studies have documented the genetic effects of intraspecific hybridization of cultured and wild Atlantic salmon (Salmo salar L.). However, the effect of salmon aquaculture on wild congeners is not so well understood. Diseases, introduced or increased in incidence by salmon aquacultu...
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croxfordunivpr:10.1016/j.icesjms.2006.03.025 2023-12-31T10:04:49+01:00 Temporal variation in an immune response gene (MHC I) in anadromous Salmo trutta in an Irish river before and during aquaculture activities Coughlan, James McGinnity, Philip O'Farrell, Brian Dillane, Eileen Diserud, Ola de Eyto, Elvira Farrell, Killian Whelan, Ken Stet, René J.M. Cross, Thomas F. 2006 http://dx.doi.org/10.1016/j.icesjms.2006.03.025 http://academic.oup.com/icesjms/article-pdf/63/7/1248/29126230/63-7-1248.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 63, issue 7, page 1248-1255 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2006 croxfordunivpr https://doi.org/10.1016/j.icesjms.2006.03.025 2023-12-06T09:05:30Z Abstract Several studies have documented the genetic effects of intraspecific hybridization of cultured and wild Atlantic salmon (Salmo salar L.). However, the effect of salmon aquaculture on wild congeners is not so well understood. Diseases, introduced or increased in incidence by salmon aquaculture activities, may have an impact on co-occurring wild sea trout (Salmo trutta L.), as implied by the steep decline in sea trout numbers in many Irish, Scottish, and Norwegian rivers since the late 1980s, which may be linked to sea lice infestations associated with marine salmonid farming. Our data suggest that salmon farming and ocean ranching can indirectly affect, most likely mediated by disease, the genetics of cohabiting sea trout by reducing variability at major histocompatibility class I genes. We studied samples of DNA extracted from scales of sea trout in the Burrishoole River, in the west of Ireland, before and at intervals during aquaculture activities. In these samples, allelic variation at a microsatellite marker, tightly linked to a locus critical to immune response (Satr-UBA), was compared with variation at six neutral microsatellite loci. A significant decline in allelic richness and gene diversity at the Satr-UBA marker locus, observed since aquaculture started and which may indicate a selective response, was not reflected by similar reductions at neutral loci. Subsequent recovery of variability at the Satr-UBA marker, seen among later samples, may reflect an increased contribution by resident brown trout to the remaining sea trout stock. Article in Journal/Newspaper Atlantic salmon Salmo salar Oxford University Press (via Crossref) ICES Journal of Marine Science 63 7 1248 1255 |
institution |
Open Polar |
collection |
Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Coughlan, James McGinnity, Philip O'Farrell, Brian Dillane, Eileen Diserud, Ola de Eyto, Elvira Farrell, Killian Whelan, Ken Stet, René J.M. Cross, Thomas F. Temporal variation in an immune response gene (MHC I) in anadromous Salmo trutta in an Irish river before and during aquaculture activities |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Several studies have documented the genetic effects of intraspecific hybridization of cultured and wild Atlantic salmon (Salmo salar L.). However, the effect of salmon aquaculture on wild congeners is not so well understood. Diseases, introduced or increased in incidence by salmon aquaculture activities, may have an impact on co-occurring wild sea trout (Salmo trutta L.), as implied by the steep decline in sea trout numbers in many Irish, Scottish, and Norwegian rivers since the late 1980s, which may be linked to sea lice infestations associated with marine salmonid farming. Our data suggest that salmon farming and ocean ranching can indirectly affect, most likely mediated by disease, the genetics of cohabiting sea trout by reducing variability at major histocompatibility class I genes. We studied samples of DNA extracted from scales of sea trout in the Burrishoole River, in the west of Ireland, before and at intervals during aquaculture activities. In these samples, allelic variation at a microsatellite marker, tightly linked to a locus critical to immune response (Satr-UBA), was compared with variation at six neutral microsatellite loci. A significant decline in allelic richness and gene diversity at the Satr-UBA marker locus, observed since aquaculture started and which may indicate a selective response, was not reflected by similar reductions at neutral loci. Subsequent recovery of variability at the Satr-UBA marker, seen among later samples, may reflect an increased contribution by resident brown trout to the remaining sea trout stock. |
format |
Article in Journal/Newspaper |
author |
Coughlan, James McGinnity, Philip O'Farrell, Brian Dillane, Eileen Diserud, Ola de Eyto, Elvira Farrell, Killian Whelan, Ken Stet, René J.M. Cross, Thomas F. |
author_facet |
Coughlan, James McGinnity, Philip O'Farrell, Brian Dillane, Eileen Diserud, Ola de Eyto, Elvira Farrell, Killian Whelan, Ken Stet, René J.M. Cross, Thomas F. |
author_sort |
Coughlan, James |
title |
Temporal variation in an immune response gene (MHC I) in anadromous Salmo trutta in an Irish river before and during aquaculture activities |
title_short |
Temporal variation in an immune response gene (MHC I) in anadromous Salmo trutta in an Irish river before and during aquaculture activities |
title_full |
Temporal variation in an immune response gene (MHC I) in anadromous Salmo trutta in an Irish river before and during aquaculture activities |
title_fullStr |
Temporal variation in an immune response gene (MHC I) in anadromous Salmo trutta in an Irish river before and during aquaculture activities |
title_full_unstemmed |
Temporal variation in an immune response gene (MHC I) in anadromous Salmo trutta in an Irish river before and during aquaculture activities |
title_sort |
temporal variation in an immune response gene (mhc i) in anadromous salmo trutta in an irish river before and during aquaculture activities |
publisher |
Oxford University Press (OUP) |
publishDate |
2006 |
url |
http://dx.doi.org/10.1016/j.icesjms.2006.03.025 http://academic.oup.com/icesjms/article-pdf/63/7/1248/29126230/63-7-1248.pdf |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
ICES Journal of Marine Science volume 63, issue 7, page 1248-1255 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1016/j.icesjms.2006.03.025 |
container_title |
ICES Journal of Marine Science |
container_volume |
63 |
container_issue |
7 |
container_start_page |
1248 |
op_container_end_page |
1255 |
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1786836252486533120 |