200752700 - Lake Roosevelt Littoral Habitat Enhancement Project
Sponsor: Colville Confederated Tribes
Short description: Spring drawdown of LR desiccates eggs of native resident littoral species and increases predation on the young of year reducing numbers of available prey species within the Lake and hence increasing predation on focal species of kokanee and rainbow trout.
Location: Intermountain province, Columbia Upper subbasin
Budgets: FY08: $293,806 | FY09: $280,306
Primary species:
Resident: Rainbow Trout
Resident: Interior Redband Trout
Resident: Other Resident
Objectives
| Objective | Description | Subbasin plan | Strategies |
| 1.Data Analysis to Determine Annual Operation Loss | Analyze newly available data to determine annual operational losses of resident species that utilize the dewatered littoral zone of Lake Roosevelt. | Intermountain | CR Basin 1A, IMP 1A1 Fully mitigate fish losses related to construction and operation of federally licensed and federally operated hydropower projects, strategies a & b. Subbasin Obj. 1A1 Continue to evaluate hydropower impacts to native and focal species |
| 2. Determine Productivity of Artificial Structures | Research availability and cost of artificial structures and substrates currently on the market then plan and produce design modifications, anchoring mechanisms, and placement methods. Place artificial structures and substrates into Lake Roosevelt and monitor to determine the effectiveness of each type of structure. | Intermountain | Columbia Basin 1B, 1c, 2A IMP Objectives 1B1,1C1,1C2,1C3,1C4,1C6,2A1,2A2,2A3,2A4, & 2B1. Upper Columbia Subbasin Objectives 1B2 strategies c&h, and 2A2 strategy a |
| 3. Determine locations & Number of Enhancements | Conduct statistical analysis of productivity data to determine locations for enhancements that will maximize their productivity and determine number of structures necessary to provide sufficient habitat to produce populations necessary to support goals and mitigate for annual losses. | Intermountain | Columbia Basin 1B, 1c, 2A IMP Objectives 1B1,1C1,1C2,1C3,1C4,1C6,2A1,2A2,2A3,2A4, & 2B1. Upper Columbia Subbasin Objectives 1B2 strategies c&h, and 2A2 strategy a |
Narrative
Recommendations
- ISRP: Unranked
- Council: Not fundable
- BPA: Not fundable