Loss of genetic integrity in wild lake trout populations following stocking: insights from an exhaustive study of 72 lakes from Québec, Canada.

Moreover, a highly significant negative correlation was observed between pairwise F ST values comparing source versus stocked populations and stocking intensity, either in number of fish stocked per hectare ( ρ = −0.432; P < 0.0001; Fig 3 A) or in number of stocking events ( ρ = −0.489; P < 0.0001; Fig 3 B). amova s also revealed that genetic differentiation among populations within region was much more pronounced for unstocked populations with F SC = 0.199 (CI [0.173–0.226]) than stocked F SC = 0.041 (CI [0.033–0.050]) ( P < 0.0001; Table 2 ).

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