AN invasive alien species has virtually wiped out the biodiversity of a loch, according to an MSP.
Uncontrolled expansion of American signal crayfish has almost completely destroyed the biodiversity of Loch Ken in Galloway, local MSP Alex Fergusson said.
Holyrood is updating its biodiversity strategy against a backdrop of a global failure to meet international targets set for 2010, with a revised target to halt biodiversity loss by 2020.
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