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<br />.'" <br /> <br />. <br /> <br />C.J <br />(::> <br />,~ <br />t~ <br />...:! <br />Q <br /> <br />. <br /> <br />. <br /> <br />direction and feed back on the model development process and input parameters for the <br />conceptual model. The entire biology committee will review the draft model reports. <br /> <br />Based upon a preliminary review of the available information within the San Juan and the <br />knowledge about existing bioenergetic models, population estimates of the prey base (native <br />species) for Colorado squawfish are needed. During 1998, population estimates will be made <br />for the native fish community in the San Juan selected sub-reaches of three geomorphic reach <br />3, 4, and 5. <br /> <br />In addition, production and biomass estimates for primary producers (periphyton) and <br />secondary consumers (macroinvertebrates) will be made on a monthly basis within riffles and <br />runs for each of the three reaches where fish population estimates will be obtained. These <br />lower trophic levels represent the food base for these native fishes. The data will be <br />incorporated into the bioenergetics and habitat-based models. <br /> <br />An exhaustive literature review will be undertaken to specifically define population <br />parameters of the rare fish needed for the population-based models. The literature review <br />will also be undertaken to define the trophic interactions of the native species with the <br />primary and secondary procedures (ie. food habits and food preference). <br /> <br />The results of this effort will be population dynamics of the T&E fish and native community <br />based on population parameters derived from data obtained in the San Juan River and other <br />Colorado Basin research efforts. <br /> <br />Budl!et (Funded bv BIA): <br /> <br />Cate~ory <br />Labor <br />Travel, per diem <br />Vehicle/Equipment Use <br />Supplies <br />Overhead <br />TOTAL: <br /> <br />CQSt <br />$89,000.00 <br />$6,000.00 <br />$3,000.00 <br />$2,000.00 <br />$10.000.00 <br />$110,000.00 <br />