The Journal of the Elisha Mitchell Scientific Society, 99(3), 1983, 1983. Paper abstract bibtex
In Poplar Creek and South Fork Mills River, North Carolina, the occurrence of debris as cover for brown trout (Salmo truttd) and rainbow trout (Salmo gairdneri) was directly correlated with fish numbers and biomass. Cover was the limiting factor for larger fish. The limiting factor for small fish was a variable associated with flow or substrate size. The decision on whether to remove debris should be based on the identification of limiting factors and a clear formulation of the intended outcome. If the management objective is to maintain the number of large fish, debris removal should be discouraged.