Hybridization effects on phenotypic plasticity: experimental compensatory growth in farmed-wild Atlantic salmon.

ABSTRACT: Compensatory growth (CG) is a means by which organisms can increase their growth rate above their routine growth rate after a period of environmentally induced growth depression. Despite a focus on the implications of CG for aquaculture, little research has evaluated the effect of domesticated-wild hybridization on CG. Any deviation in the mean compensatory ability of hybrids relative to their wild progenitors, or any notable costs to compensation in terms of body morphology, could affect the ability of hybrids to persist in changing environments. We compared CG of farmed, wild and hybrid (F1, F2, wild backcross) juvenile Atlantic salmon (Salmo salar). Wild salmon experienced both lower routine and CG rates relative to farmed salmon, while hybrids were intermediate. However, the compensato

SUBMITTER: Morris MR 

PROVIDER: S-EPMC3352526 | biostudies-literature | 2011 May

REPOSITORIES: biostudies-literature