Specifications include, but are not limited to: Activities: Assess previous recovery efforts using genetic analysis, eDNA, and current fish barrier effectiveness to determine the scale and feasibility of retreatment necessary to extirpate nonnative trout from the McDermitt Creek drainage. Review a variety of source information from state and federal agencies and others associated with the previous recovery effort. Prepare a report with input and concurrence from agencies on which streams of the McDermitt drainage require retreatment and likely why. Survey McDermitt Creek, Sage Creek, Indian Creek, Cottonwood Creek and Riser Creek drainages at time of year when retreatment is expected to occur to: Assess limiting physical factors and site characteristics in the application of rotenone, Map entire drainage including current tributaries and seeps/spring and areas with limited continuity. Determine rotenone dose, location of application stations, and equipment and personnel needed necessary to extirpate nonnative trout from the drainage under likely treatment conditions. Survey drainages with Oregon Department of Fish and Wildlife (ODFW), Nevada Department of Wildlife (NDOW), and Trout Unlimited (TU) staff to determine current distribution of trout and treatment area necessary to plan treatment. Develop overall strategy for treating the streams in sequence, generally beginning upstream and working downstream, including treating each stream in two concurrent years (twice) until no nonnative trout are present. Several drainages may be treated concurrently. Conduct on-site toxicity test(s) with rainbow trout using liquid rotenone formulation during anticipated treatment time (early summer). Alternatively, we will write down the test procedures, provide training, and let local staff conduct the tests, especially if this is at a different time from the on-site survey. Determine basic water quality conditions (temperature, pH, alkalinity) throughout the drainage during the time of year when the treatment is expected to occur. Collect discharge and velocity (travel time) measurements throughout the drainage during the time of year when the treatment is expected to occur and identify areas lacking water continuity.
