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<br />Table AI. Continued. <br /> <br />Studies <br />Effects of Flaming <br />Gorge Dam releases on <br />fish communities <br />(project 115) <br /> <br />Operation and <br />maintenance of gages <br />(project 8) <br /> <br />Study Goal and Ob.iectives <br /> <br />Goal <br />Determine if changes in Green River flow and thermal regimes are associated with changes in <br />distribution and abundance patterns of native and nonnative fishes in Browns Park, Lodore and <br />Whirlpool canyons, and Island-Rainbow Park. <br />Obiectives <br />1. Determine if shifts in distribution and abundance of large-bodied fishes have occurred in <br />Lodore Canyon and Whirlpool Canyon by comparing the results of shoreline electro fishing <br />and trammel net surveys with the results of previous studies, particularly Bestgen and Crist <br />(2000) and results of the 2002-2004 study. An ancillary benefit will be removal of warm water <br />nonnative fishes captured during sampling. <br />2. Determine if shifts in the distribution and abundance of small-bodied fishes have occurred in <br />Brown's Park, Lodore and Whirlpool canyons, and Island-Rainbow Park by comparing results <br />oflow-velocity, nearshore seining with the results of previous studies, particularly Bestgen and <br />Crist (2000) and results of the 2002 to 2004 study. An ancillary benefit will be removal of <br />warm water nonnative fishes captured during sampling efforts. <br />3. Determine if Colorado pikeminnow spawn in the Green River upstream from the Yampa <br />River confluence by sampling with drift nets in lower Lodore Canyon, and by summer <br />sampling to determine presence of ripe adults. Drift net sampling will be done only <br />occasionally when Green River flows are low and warm (conditions when pikeminnow <br />spawning might be expected) and will be done in conjunction with drift-net sampling in the <br />Yampa River (project 22f). <br />4. Analyze hydrological records as recorded by the USGS at their gaging station (09234500) <br />near Greendale, Utah, to compare differences in current and historical operations. <br />5. Analyze temperature records of the Green River through Browns Park, Lodore Canyon, and <br />Whirlpool Canyon to compare differences in current and historical operations. <br />6. Based on results of objectives 1-5, determine physical effects of new operations and <br />subsequent effects on the fish community of the Green River downstream of Flaming Gorge <br />Dam. <br />Goal <br />Provide a basis for refining the flow recommendations for the important stream reaches of the <br />Colorado, Yampa, Price and Duchesne rivers. <br />Obiectives <br />1. Provide a benchmark for future monitoring by video or aerial photography. <br />2. Aid in scheduling releases from Ruedi, Wolford, Williams Fork and Green Mountain <br />Reservoirs and other water sources which may be acquired by the Recovery Program. <br />3. Provide basic information for sediment modeling for the Little Snake and Yampa Rivers. <br /> <br />Status <br />Ongoing <br /> <br />Ongoing <br /> <br />FY <br />2002 - 2007 <br /> <br />1990 - TBD <br /> <br />~ <br />~ <br />~ <br />~ <br />::ti <br />~ ~ <br />~ <br />~ <br /> <br />:> <br />I <br />N <br /> <br />~ <br /><:l- <br /> <br />~ <br /> <br />-~ <br />~ <br /><:::::> <br /><:::::> <br />"-l <br />