holding areas Pathogen occurrence of hatchery and naturally hatchery < natural fish produced fish natural winter Do not want hatchery ≠ Spawning location (by origin) steelhead fish spawning Number of naturally produced As close to zero as fish caught and released possible Number of fish passed Based on run size and upstream into target areas other factors Number of hatchery produced fish recaptured (detected at As close to zero as adult fish facilities or traps, possible fisheries, spawning grounds) Increase harvest of hatchery summer steelhead in non-target areas Post release mortality (impacts on naturally < 5% produced fish) This indicator applies to pHOS 0 other objectives too pNOB 0 Reduce genetic effects of For both winter and hatchery fish spawning with Abundance NA summer steelhead naturally produced fish Productivity 0 For winter steelhead Source: Based on objectives and indicators identified in Peven and Keefe (2010) 1.10) List of program by and “Performance Indicators,” designated “benefits” “risks” The same performance indicators shown in Table 4 are designated as either a risk or benefit to winter steelhead (and potentially spring Chinook salmon) and are depicted in Table 5 below. Table 5. Performance indicators for summer steelhead hatchery program that are designated as either a risk or benefit to winter steelhead and spring Chinook salmon Objective Performance indicators Benefit Risk Broodstock numbers x Manage broodstock to meet Number of fish released x mitigation production Percentage of fish released NA NA requirements Percentage of broodstock used NA NA Number of unclipped summer x Ensure all adult hatchery returns steelhead in sample can be distinguished from Percentage of unclipped summer naturally produced fish x steelhead Number of hatchery juvenile fish x that do not migrate after release Number of hatchery fish that are x Release hatchery fish that are sexually mature at release ready to migrate Hormone sampling NA NA Residualism rates x Precocial rates x Determine the extent of natural Number of juveniles leaving x production of summer steelhead system
holding areas Pathogen occurrence of hatchery and naturally produced fish hatchery < natural fish Spawning location (by origin) ≠ natural winter steelhead Do not want hatchery fish spawning Number of naturally produced fish caught and released As close to zero as possible Increase harvest of hatchery summer steelhead Number of fish passed upstream into target areas Based on run size and other factors Number of hatchery produced fish recaptured (detected at adult fish facilities or traps, fisheries, spawning grounds) in non-target areas As close to zero as possible Post release mortality (impacts on naturally produced fish) < 5% pHOS 0 This indicator applies to other objectives too Reduce genetic effects of hatchery fish spawning with naturally produced fish pNOB 0 Abundance NA For both winter and summer steelhead Productivity 0 For winter steelhead Source: Based on objectives and indicators identified in Peven and Keefe (2010) 1.10) List of program “Performance Indicators,” designated by “benefits” and “risks” The same performance indicators shown in Table 4 are designated as either a risk or benefit to winter steelhead (and potentially spring Chinook salmon) and are depicted in Table 5 below. Table 5. Performance indicators for summer steelhead hatchery program that are designated as either a risk or benefit to winter steelhead and spring Chinook salmon Objective Performance indicators Benefit Risk Manage broodstock to meet mitigation production requirements Broodstock numbers x Number of fish released x Percentage of fish released NA NA Percentage of broodstock used NA NA Ensure all adult hatchery returns can be distinguished from naturally produced fish Number of unclipped summer steelhead in sample x Percentage of unclipped summer steelhead x Release hatchery fish that are ready to migrate Number of hatchery juvenile fish that do not migrate after release x Number of hatchery fish that are sexually mature at release x Hormone sampling NA NA Residualism rates x Precocial rates x Determine the extent of natural production of summer steelhead Number of juveniles leaving system x