The data in this Excel file includes all data used for the analyses described in the MS titled "Domestication-admixed Atlantic salmon (Salmo salar) establish a productive population within a single generation."

Authors: Alison C. Harvey, Øystein Skaala, Francois Besnier, Britt Iren Østebø, Anne Grete Sørvik, Per Tommy Fjeldheim, Laila Unneland, Marine S. O. Brieuc, Fernando Ayllon, Kjell R. Utne, Monica F. Solberg, & Kevin A. Glover

This manuscript was submitted to Ecology Letters in August 2025

Dataset descriptions:

Code.R contains all the code needed to execute the figures and analyses.

The ReadMe.txt file contains the same information as this file. 

dataset1.csv is the data about the spawners: Each row is one spawner

off.assign.csv is each offpsring (row) and whether it was assigned to a spawner parent for figure S3 (in the corresponding manuscript)

spawnerN.csv is the number of spawners in each spawner year and whether that spawner was a recruit (identified as a smolt) for figure 2

smoltN.csv is the number of smolts in each smolt year class and whether that smolt was recruited as a spawner for figure 2

spawnerNall.csv is all the spawners that entered the river from 2000 to 2021for figure S2

MS.csv is the collated marine survival data for the supplementary figure S8

spawner.genetic.csv is the microsatellite data used to check for duplicated spawners in the dataset

Variable descriptions:

• dataset1.csv
  • ID: Unique identifier of each spawner
  • Date: Date on which the spawner entered the river
  • Year: Year of river entry
    Length Length of the spawner in cm
  • Weight: Weight of the spawner in kg
  • Admix: Admixture estimate of the spawner
  • Sex: Genetically determined sex of the spawner
  • OffN: Number of offspring assigned to the spawner
  • Repro: Reproductive success, yes = reproduced, no = did not reproduce
  • Rsucc: Reproductive success, 1 = reproduced, 0 = did not reproduce
  • River: River assigned to the spawner
  • Threshold: whether the river assignment was above or below the 0.80 probability of assignment threshold
• off.assign.csv
  • OffspringID: Unique identifier of each offspring
  • Off.Year: Year of migration of the offspring
  • Assign: Whether the offspring was assigned to a parent or not
• SpawnerN.csv
  • Year: Spawner year
  • Number Number of spawners in that year
  • Recruit How many were recruited from smolts
• SmoltN.csv
  • Year Smolt year class
  • Recruit Number of smolts that were then recruited back to the river as spawners
  • Number Number of smolts in the smolt year class
• SpanwerNall.csv
  • Fish number for each fish, continuous
  • Year Spawner year
• MS.csv
  • SYC Smolt year class
  • MS The marine survival (proportion)
  • Origin Whether that population is wild or of hatchery origin
  • River Which river the data comes from
  • Age Which age the marine survival relates to (1 sea winter SW, 2 sea winter SW)