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ESCAPEMENT GOALS WE DON T NEED NO STINKING SCAPEMENT GOALS

AN ESCAPEMENT GOAL. Spawners. Catch. . . . Adults . The Burning Question. What information do we have available to use to set an escapement goal for steelhead if current models give results that are constrained by the fishery previously imposed on the stock?. This report is available free from WA DNR.

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ESCAPEMENT GOALS WE DON T NEED NO STINKING SCAPEMENT GOALS

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    1. ESCAPEMENT GOALS? WE DON’T NEED NO STINKING ‘SCAPEMENT GOALS! Hal Michael Washington Department of Fish and Wildlife 360-902-2659 michahhm@dfw.wa.gov

    2. AN ESCAPEMENT GOAL Adults

    4. The Burning Question What information do we have available to use to set an escapement goal for steelhead if current models give results that are constrained by the fishery previously imposed on the stock?

    6. Steelhead Parr per metre in Treatment and Control Habitats

    7. Effect of nutrient addition on Keogh steelhead smolt ages

    8. KEOGH RIVER Approximately 259,000 sq m surface area Loaded with equivalent of 64,260 kg carcasses, in addition to 50,000 pinks every other year Approx biomass loading of 0.63 kg/ sq m Soos Cr, a Green R. trib, has 249,000 sq m (96% of Keogh) Skagit R has 21,129,900 sq m (81.6 times larger than Keogh)

    9. SOOS CREEK I Small stream, tributary to Green River with a hatchery and rack near mouth For 1981-2002, Chinook and coho passed upstream have averaged 0.14 kg per square metre; maximum in 2000 of 0.63

    10. SOOS CREEK STEELHEAD II

    11. SOOS CREEK STEELHEAD III REMOVE LOW FLOW YEARS

    12. SKAGIT RIVER Surface area of streams accessible to coho is 81.6 times as large as Keogh River. If Keogh averages 50,000 pink, a simple expansion gives 4,080,000 pinks for the Skagit Current goal for Skagit pink is 330,000

    13. Snow Creek Salmon Creek Coho Salmon Mean FL Survival Mean FL Survival to return to return 1977 99 7.9% 102 20.0% 1978 101.3 9.11% 102.1 12.1% Steelhead trout 1977 158.0 172.0 1978 164.4 165.1 Chum salmon escapement biomass Biomass Biomass 1976 0.037 0.217 1977 0.014 0.122 1978 0.037 0.362 1979 0.003 0.069 1980 0.012 0.464

    14. UPSHOT Nutrients, as delivered by spawning salmon, are critical Quality habitat, including appropriate flows, access to stream reaches, habitat complexity, are equally critical

    15. STEELHEAD ESCAPEMENT GOAL Harvest rate on wild stock no more than 10% in total. Coho escapement target of at least 0.15 kg per square metre Pink escapement goal of at least 0.63 kg per square metre Chum escapement goal of 0.5 kg/square metre Fall Chinook escapement goal of 0.63 kg per square metre to match pinks Spring Chinook goal of 0.15 kg per square metre to match coho

    16. SOOS CREEK ESCAPMENT GOAL For Chinook (7.97 kg) and chum (4 kg), target only the mainstem of Big Soos Cr, 104,479 square metres For coho (2.27 kg) use entire basin, 249,057 square metres Chinook=8,250 Chum=16,450 Coho=16,450

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