Horton Plains Chimney Pool brown trout eradication: invasive salmonid impact on native amphibians?

During the British colonial era in the late 19th century, acclimatization societies introduced European Brown Trout (Salmo trutta) into cold montane streams across Horton Plains (including Chimney Pool along the Belihul Oya) for recreational sport fishing. As voracious apex aquatic predators, introduced trout decimated endemic freshwater crabs (Perbrinckia), native micro-fish, and tadpoles of endangered shrub frogs. Modern wildlife management programs by the Department of Wildlife Conservation restrict trout fishing and monitor headwaters to restore native aquatic biodiversity.