Most of our readers and followers will already be aware that we advise against artificial stocking strategies to enhance wild trout and salmon populations and there’s very good scientific reasoning reason behind this, not least that the evidence shows that while you can temporarily increase stocks through hatchery and stocking intervention, you may also inadvertently make genetic selections that can impact on the very populations you so desperately wish to improve. A simple example of where mistakes are easily made would be the breeding of spring run salmon with summer or autumn run fish. This probably would be detrimental to…

Source: Ayshire River Trust – Preserving isolated trout populations that are under threat