Habitat Suitability Index Models and Instream Flow Suitability Curves: White sucker

The white sucker (Catostomus commersoni) is a highly adaptable, freshwater fish species found in lacustrine and riverine environments from the Mackenzie River, Hudson Bay drainage, and the Labrador Peninsula; south along the Atlantic Coast to western Georgia; along the northern extremes of the Gulf States to northern Oklahoma; north through the eastern sections of Colorado, Wyomi ng, and Montana; and through A"I berta, north-central Bri t ish Col umbi a and southeastern Yukon territory (Carlander 1969; Scott and Crossman 1973).