Hybridization Dynamics Between a Wild Atlantic Salmon Population and Aquaculture Escapees (original) (raw)

Abstract

The factors determining the vulnerability of wild Atlantic salmon populations to genetic invasion by aquaculture escapees are poorly understood. The Teno River salmon stock of northern Lapland includes multiple, genetically and demographically distinct wild populations distributed over many tributaries. Scales from >100,000 fish have been collected throughout the Teno for 40 years, generating a long-term genetic dataset with which to monitor changes due to aquaculture influences. Aquaculture escapees have been recorded in the river since the late 1980s. A full understanding of hybridization between wild salmon and aquaculture escapees requires genetic markers to accurately identify early and later-generation hybrids. Although aquaculture fish comprise multiple distinct lines, areas of the genome responding to domestication selection may show parallel changes over lines and thus collectively discriminate them from wild individuals. We utilized a 220K Atlantic salmon SNP chip and t...

Jaakko Erkinaro hasn't uploaded this paper.

Let Jaakko know you want this paper to be uploaded.

Ask for this paper to be uploaded.