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200102900 - Ford Hatchery Operations & Maintenance

Sponsor: Washington Department of Fish and Wildlife (WDFW)

Budgets: FY07: $121,190 | FY08: $127,254 | FY09: $133,623

Short description: To operate and maintain Ford Hatchery to enhance recreational and subsistence Kokanee Fisheries in Lake Roosevelt and Banks Lake, and bolster put and take resident trout fishing lakes in region1.

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Final Council recommendation (Nov 2006)

Funding category: Expense

Recommended budgets: FY07: $121,190 | FY08: $127,254 | FY09: $133,623

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 efforts to produce a viable hatchery-based kokanee program in Lake Roosevelt have not been successful so the ISRP recommends "Not Fundable" for projects or project elements directed to rearing and stocking for kokanee salmon in communities including walleye, bass (smallmouth or largemouth), northern pike, or lake trout unless populations of these predators can be reduced to and maintained at levels so low that they cannot control the abundance of kokanee salmon. Existing evidence, including results of Fish and Wildlife Program projects, does not show that kokanee populations can be successful under heavy predation. Ford Hatchery production of kokanee for introduction into Banks Lake for use by the Banks Lake Fishery Evaluation Project is supported by reviewers as Fundable. The continued redband and triploid rainbow production is also Fundable. 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: $121,190 | FY08: $127,254 | FY09: $133,623

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