Differences in pathogen resistance within and among cultured, conservation-dependent, and endangered populations of Atlantic salmon, Salmo salar L.

Jennifer L. Lawlor; Andrew Dacanay; Jeffrey A. Hutchings; Laura L. Brown; Sandra A. Sperker

doi:10.1007/s10641-008-9390-2

Differences in pathogen resistance within and among cultured, conservation-dependent, and endangered populations of Atlantic salmon, Salmo salar L.

Jennifer L. Lawlor, Andrew Dacanay, Jeffrey A. Hutchings, Laura L. Brown, Sandra A. Sperker

Medicine

Medicine

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

We report genetic differences for resistance to the pathogen Listonella anguillarum within and among one cultured and two wild Canadian populations of Atlantic salmon, Salmo salar, using a common-garden experimental protocol. Following exposure to the causative agent for vibriosis, parr originating from the endangered Stewiacke River population experienced significantly higher mortality than cultured parr, four generations removed from the Saint John River population, and wild parr from Tusket River. Pathogen resistance differed between sexes; males consistently experienced higher survival than females. There was no evidence that maturity influenced pathogen resistance in male parr. The population and sex differences in pathogen resistance documented here have implications for risk assessments of the demographic consequences of interbreeding between wild and farmed Atlantic salmon.

Original language	English
Pages (from-to)	69-78
Number of pages	10
Journal	Environmental Biology of Fishes
Volume	84
Issue number	1
DOIs	https://doi.org/10.1007/s10641-008-9390-2
Publication status	Published - Jan 2009

Bibliographical note

Funding Information:
Acknowledgements We are extremely grateful to P. Avendaño, J. Eddington, and particularly S. Thompson for assistance in the laboratory. We thank P. Ackerman, University of British Columbia, for providing the strain of L. anguillarum used in our study. For assistance in the collection of broodstock and gametes, we are grateful to B. Glebe (Department of Fisheries and Oceans [DFO], St. Andrews, New Brunswick) for the cultured salmon, and to staff at DFO’s Coldbrook Biodiversity Facility and at DFO’s Bedford Institute of Oceanography, especially D. Aiken, B. Lenetine, S. O’Neil, and P. O’Reilly. L. White (Natural Resources Canada) kindly provided the map from The Atlas of Canada. The research was supported by a grant to JAH from AquaNet, one of Canada’s former National Centres of Excellence, and by a Natural Sciences and Engineering Research Council Discovery Grant to JAH. Funding for AD was provided by the National Research Council of Canada’s Genome and Health Initiative.

ASJC Scopus Subject Areas

Ecology, Evolution, Behavior and Systematics
Aquatic Science

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title = "Differences in pathogen resistance within and among cultured, conservation-dependent, and endangered populations of Atlantic salmon, Salmo salar L.",

abstract = "We report genetic differences for resistance to the pathogen Listonella anguillarum within and among one cultured and two wild Canadian populations of Atlantic salmon, Salmo salar, using a common-garden experimental protocol. Following exposure to the causative agent for vibriosis, parr originating from the endangered Stewiacke River population experienced significantly higher mortality than cultured parr, four generations removed from the Saint John River population, and wild parr from Tusket River. Pathogen resistance differed between sexes; males consistently experienced higher survival than females. There was no evidence that maturity influenced pathogen resistance in male parr. The population and sex differences in pathogen resistance documented here have implications for risk assessments of the demographic consequences of interbreeding between wild and farmed Atlantic salmon.",

author = "Lawlor, {Jennifer L.} and Andrew Dacanay and Hutchings, {Jeffrey A.} and Brown, {Laura L.} and Sperker, {Sandra A.}",

note = "Funding Information: Acknowledgements We are extremely grateful to P. Avenda{\~n}o, J. Eddington, and particularly S. Thompson for assistance in the laboratory. We thank P. Ackerman, University of British Columbia, for providing the strain of L. anguillarum used in our study. For assistance in the collection of broodstock and gametes, we are grateful to B. Glebe (Department of Fisheries and Oceans [DFO], St. Andrews, New Brunswick) for the cultured salmon, and to staff at DFO{\textquoteright}s Coldbrook Biodiversity Facility and at DFO{\textquoteright}s Bedford Institute of Oceanography, especially D. Aiken, B. Lenetine, S. O{\textquoteright}Neil, and P. O{\textquoteright}Reilly. L. White (Natural Resources Canada) kindly provided the map from The Atlas of Canada. The research was supported by a grant to JAH from AquaNet, one of Canada{\textquoteright}s former National Centres of Excellence, and by a Natural Sciences and Engineering Research Council Discovery Grant to JAH. Funding for AD was provided by the National Research Council of Canada{\textquoteright}s Genome and Health Initiative.",

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Differences in pathogen resistance within and among cultured, conservation-dependent, and endangered populations of Atlantic salmon, Salmo salar L.

Abstract

Bibliographical note

ASJC Scopus Subject Areas

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