Laserfiche WebLink
<br />~. <br /> <br />~ <br />~ <br />~ <br />OJ <br /> <br />. <br /> <br />. <br /> <br />speci es, dependi ng upon its known preferences. L i kewi se, curves were <br />developed for each recreational activity or group of closely related <br />activities, showing how the amount of suitable recreational area could be <br />expected to change with variations in depth and velocity. The output of <br />the stream-reach simulation results in a multi-dimensional matrix showing <br />the surface area of stream havi ng different combi nati ons of hydraul i c <br />parameters. The present study made use of two parameters, but the <br />methodology is not limited to two dimensions. When the known preferences <br />of a given life stage of a fish species or the known parameters suitable <br />for a given recreational activity are applied to the output of the simu- <br />lation model at a given discharge level, the result is a measure of the <br />water area within which satisfactory conditions exist. This is termed <br />weighted usable area (WUA). It is expressed in terms of square feet of <br />water surface per thousand linear feet of stream channel. <br /> <br />III. IMPLEMENTATION OF THE METHODOLOGY, UCRB SECTION 13(a) ASSESSMENT <br /> <br />A. Initiation of the CIFSG Participation <br /> <br />The first meeting of the Steering Committee for the UCRB in which CIFSG <br /> <br /> <br />part i ci pated was he 1 din Denver, Colorado, on December 21, 1977. The <br /> <br /> <br />members of the Steering Committee included representatives from the <br /> <br /> <br />States of Utah, Wyomi ng, Colorado, New Mexi co, and Arizona. Federal <br /> <br /> <br />members of the committee included the U. S. Departments of Agriculture, <br /> <br /> <br />Army, Commerce, Energy, Housing and Urban Development, Interior ((Bureau <br /> <br /> <br />of Reclamation), and Transportation, and the U.S. Environmental Protecton <br /> <br /> <br />Agency. The Fish and Wildlife Service was a participant through its <br /> <br />14 <br />