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199104700 - Sherman Creek Hatchery - O&M

Sponsor: Washington Department of Fish and Wildlife (WDFW)

Budgets: FY07: $280,780 | FY08: $294,816 | FY09: $309,558

Short description: Operate and maintain Sherman Creek Hatchery and the Lake Roosevelt Net Pens to aid in the restoration and enhancement of the Lake Roosevelt and Banks Lake Fisheries. SCH is a key component of the Lake Roosevelt Fishery Enhancement Project.

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Final Council recommendation (Nov 2006)

Funding category: Expense

Recommended budgets: FY07: $280,780 | FY08: $294,816 | FY09: $309,558

Comment: ISRP fund in part: funding continues but part of funding contingent on outcome of a workshop with the ISRP to address ISRP concerns.

ISRP final recommendation: Fundable in part

Comment:

The project sponsors provided some data to show limited success of the hatchery kokanee propagation and to support a proposal to try alternative methods and monitor results. Their response did not really address the issue of walleye predation and the ways it can be managed to reduce impacts on hatchery kokanee. The reviewers concluded that this project is fundable in part to continue the native redband trout and triploid rainbow trout, but there is no justification to continue production of kokanee salmon unless they are being produced to stock Banks Lake. The ISRP recommends that only female triploids be stocked, because male triploids (in mixed sex production lots) will engage in courtship behavior with native trout, possibly leading to gamete waste (from the native trout). The ISRP notes that standardized Quality Assurance/Quality Control protocols are not yet established for using sterile female triploids to provide recreational angling in waters inhabited by native trout. Large-scale production of triploid female rainbow trout is not 100% effective. Sponsors should have the production lots they stock evaluated for the percentage of triploids, and report this as part of the project monitoring. The efficacy of avoiding hybridization between stocked and native trout is unknown when less than 100% of the stocked fish are triploids. Ongoing evaluation of hybridization in contemporaneous native trout populations will be needed in the future. Stocking triploid females to provide recreational angling in regions with highly sensitive native populations is not yet justified. See Kozfkay, J. R., J. C. Dillon, and D. J. Schill. 2006. Routine use of sterile fish in salmonid sport fisheries: are we there yet? Fisheries 31(8):392 - 401.

State/province recommendation: Fundable

Review group: Intermountain

Recommended budgets: FY07: $280,780 | FY08: $294,816 | FY09: $309,558

Comment: No change to proposed budget.

State/province recommendation: Washington

Review group: Washington list

Recommended budgets: FY07: (n/a) | FY08: (n/a) | FY09: (n/a)

Comment: See Washington guidance