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a stream where manpower and time is available, Binns' (1979) model may be <br />better, However, if manpower or time is limited, or if the high degree of <br />accuracy implied in Binns' model is not necessary, the models presented here <br />are easier, quicker, and account for a significant proportion of the vari- <br />ation in trout standing stock making them valuable for management purposes. <br />ACKNOWLEDGMENTS <br />We thank Fred Stabler, Bureau of Land Management, Rawlins, Wyoming whose <br />idea and initiative started this project and whose suggestions proved valu- <br />able in data analysis. Special thanks are extended to Stephen Bieber, <br />University of Wyoming, Department of Statistics, for help in data analysis. <br />And finally, thanks to Walter Eifert, Richard Kroger, Ian Chisholm, Carrie <br />Frye, and Brenda Melton for their assistance in providing the data used for <br />initial model development. <br />LITERATURE CITED <br />Binns, N. A. 1979. A habitat quality index for Wyoming trout streams. <br />Fishery Research Report No. 2. Wyoming Came and Fish Department, <br />Cheyenne, Wyoming. 75 pp. <br />Brouha, P., and P. Renoud. 1981. Shasta-Trinity National Forest stream <br />fisheries data storage, retrieval and habitat assessment programs. <br />Unpublished report. Available from Paul Brouha, USDA, USFS Region 1 <br />Office, Missoula, Montana. <br />Burton, R. A. and T. A. Wesche. 1974. Relationship of duration of flows and <br />selected watershed parameters to the standing crop estimates of trout <br />populations. Water Resources Series No. 52, University of Wyoming, <br />Laramie, Wyoming. 86 pp. <br />Duff, D. A. and J. L. Cooper. 1978. Techniques for conducting stream <br />habitat surveys on National Resource Land. IJ.S, Dept. of the Interior, <br />BLM Tech. Note No. 83. 73 pp. <br />Eifert, W. H. and T. A. [Jesche. 1982. Evaluation of the stream reach <br />inventory and channel stability index for instream habitat analysis. <br />Water Resources Series No. 82. University of Wyoming, Laramie, <br />Wyoming. 196 pp. <br />Heller, D. A., J. R. Maxwell, and M. Parsons. 1983. Modeling the effects <br />of forest management on salmonid habitat. USDA, USFS, Pacific North- <br />west Region. Siuslaw National Forest. 63 pp. <br />25 <br />