High incidence of Atlantic salmon × brown trout hybrids in a Lake District stream

Abstract

Hypervariable minisatellite DNA single‐locus profiling and mitochondrial DNA analysis revealed that 18.48% of juvenile Atlantic salmon Salmo salar in Troutbeck, a stream in the R. Leven catchment of the English Lake District, were hybrids between Atlantic salmon and brown trout S. trutta , and that hybridization was bidirectional.