Data from: Effects of domestication on parr maturity, growth, and vulnerability to predation in Atlantic salmon ...
Domestication can change fitness-related traits. We investigated domestication-induced changes in fitness-related traits in Atlantic salmon (Salmo salar) under naturally enriched laboratory conditions with and without threat of predation. Selection in two strains for rapid growth for 3 and 5 generat...
Main Authors: | , |
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Format: | Dataset |
Language: | English |
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Dryad
2015
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Subjects: | |
Online Access: | https://dx.doi.org/10.5061/dryad.3v670 https://datadryad.org/stash/dataset/doi:10.5061/dryad.3v670 |
Summary: | Domestication can change fitness-related traits. We investigated domestication-induced changes in fitness-related traits in Atlantic salmon (Salmo salar) under naturally enriched laboratory conditions with and without threat of predation. Selection in two strains for rapid growth for 3 and 5 generations resulted in 2 and 3 times larger sizes of under-yearling parr relative to their wild ancestor. An initially larger size and ability to outgrow prey size more rapidly resulted in lower size-selective predation mortality for domesticated individuals. Growth under threat of predation was only reduced for wild individuals, suggesting that domestication co-selects for predator-related stress resistance. Size-adjusted male parr maturation probability was 34% in the wild strain, but significantly reduced to 10% and 7% after 3 and 5 generations of domestication, respectively. Together, freshwater-stage specific survival for individuals with a domesticated background relative to individuals with a wild genetic ... : Salmon_Size_DataFile with data on individual salmon size and experimental design.Temperature_DataFile with data on daily water temperature for each experimental tank. ... |
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