Fisheries Habitat Dynamics in the Upper Colorado River

An investigation in the upper Colorado River near Parachute, Colorado revealed temporal variations in the amount of important fish habitats. Quantitative measures of habitat area were related to flow. The relationships developed between flow and surface area of specific habitats revealed the existence of critical thresholds. The implications of these results could be important in the management of the Colorado River system for wildlife and human consumptive and non-consumptive uses.