Home About Browse Search
Svenska


Genetic evidence of farmed straying and introgression in Swedish wild salmon populations

Palm, Stefan and Karlsson, Sten and Diserud, Ola H. (2021). Genetic evidence of farmed straying and introgression in Swedish wild salmon populations. Aquaculture environment interactions. 13 , 505-513
[Research article]

[img] PDF
947kB

Abstract

Escaped farmed Atlantic salmon represent a well-documented and ongoing threat to wild conspecific populations. In Norway, the world-leading producer of farmed salmon, annual monitoring of straying and genetic introgression by farmed escapees in wild salmon rivers has been carried out since the late 1980s. In this study, we applied molecular and statistical methods routinely used in the Norwegian monitoring programme to investigate the magnitude of escaped farmed salmon and genetic introgression in salmon rivers on the west coast of Sweden, where suspected escapees have been observed. Our results confirm that escaped farmed salmon stray, successfully spawn, and produce offspring at levels similar to those observed in neighbouring Norway. These findings raise concerns over population productivity and long-term viability and highlight the need for more permanent monitoring of the presence and consequences of escaped farmed salmon in Swedish salmon rivers. Our results further illustrate that farmed gene flow may constitute a transboundary problem with potential international implications.

Authors/Creators:Palm, Stefan and Karlsson, Sten and Diserud, Ola H.
Title:Genetic evidence of farmed straying and introgression in Swedish wild salmon populations
Series Name/Journal:Aquaculture environment interactions
Year of publishing :2021
Volume:13
Page range:505-513
Number of Pages:9
Publisher:INTER-RESEARCH
ISSN:1869-215X
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Fish and Aquacultural Science
Keywords:Gene flow, Aquaculture, Atlantic salmon, Salmo salar, Single nucleotide polymorphisms, SNPs
URN:NBN:urn:nbn:se:slu:epsilon-p-116310
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-116310
Additional ID:
Type of IDID
DOI10.3354/aei00423
Web of Science (WoS)000752076800001
ID Code:27292
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Aquatic Resources
Deposited By: SLUpub Connector
Deposited On:10 Mar 2022 16:25
Metadata Last Modified:10 Mar 2022 16:31

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits