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<br />. <br /> <br />. <br /> <br />Scope of Work Number: D <br /> <br />Tasks: 1, 3, 4, 5, and 6 <br /> <br />Cooperating Agencies: Fish and Wildlife Service, Utah Division of Wildlife <br />Resources <br /> <br />FY 94 Cost: $54,800 <br /> <br />Study Summary: Larval fishes will be sampled using fine-mesh dip nets. <br />Distribution and relative abundance of larvae collected here will be <br />compared with drift-net samples to evaluate the effectiveness of the <br />techniques. All sympatric species collected during ISMP sampling will be <br />identified to better assess the relative abundance of these species. ISMP <br />sampling will be conducted in the spring to assess the over-winter survival <br />of age-O Colorado squawfish, Sampling will be restricted to the lower 50 <br />miles of reach 1 as designated by ISMP. <br /> <br />Title: <br /> <br />Flow effects on humpback chub populations in Westwater Canyon <br /> <br />Scope of Work Number: E <br /> <br />Tasks: 8 <br /> <br />Cooperating Agencies: Utah Division of Wildlife Resources <br /> <br />FY 94 Cost: $40,000 <br /> <br />Study Summary: The study focuses on the Westwater Canyon population of <br />humpback chubs in the Colorado River about 50 miles below the Gunnison River <br />confluence. It is designed to address the effect of high spring flows on <br />successful reproduction and recruitment of humpback chub, as well as the <br />effect of seasonal flow events on the formation of critical habitat and the <br />invasion/proliferation of non-native species, The study will also assess <br />the effects of flows on the invasion of roundtail chubs into Westwater <br />Canyon and the potential impact of hybridization. <br /> <br />Title: <br /> <br />Quantification of available habitat in the Gunnison River in <br />relation to test flows released from the Aspinall Unit, <br /> <br />Scope of Work Number: F <br /> <br />Tasks: 9 <br /> <br />Cooperating Agencies: Fish and Wildlife Service and Bureau of Reclamation. <br /> <br />FY 94 Cost: $40,000 <br /> <br />Study Summary: Aerial videography will be combined with ground truthing to <br />describe the available habitats in the Gunnison River and their relationship <br />with streamflow. Color aerial videography will be acquired at peak flow and <br />again at base flow, Detailed habitat measurements will be made by <br />individuals on the ground at the same time as the aerial videography is <br /> <br />8 <br />