The Relative Value of a Hatchery Remodel
Transcription
The Relative Value of a Hatchery Remodel
The Relative Value of a Hatchery Remodel Presented by Jason Rothermel WDFW Performance Measurements Adult Escapement Disease Outbreak Frequency Cost of Operation Time Efficiency Economic Activity Educational Contributions Hatcheries That Were Examined Minter Creek Salmon Hatchery on Hood Canal Issaquah Salmon Hatchery Brief History of Minter Creek Hatchery Hatchery was built in 1936 Remodel of hatchery completed in 1997 1.8 million Falls 1.2 million Coho 2 million Chum 250,000 Spring Chinook Brief History of Issaquah Hatchery Hatchery was built in 1936 Production consists of Fall Chinook, Coho, and Steelhead Remodel of hatchery completed in 2002 Adult Escapement @ Minter Hatchery Minter Creek Fall Chinook Escapement Increase 14,000 10,000 8,000 6,000 4,000 2,000 0 19 78 19 79 19 80 19 81 19 82 19 83 19 84 19 85 19 86 19 87 19 88 19 89 19 90 19 91 19 92 19 93 19 94 19 95 19 96 19 97 19 98 19 99 20 00 20 01 20 02 20 03 20 04 20 05 20 06 20 07 Return To Rack/Tribal Harvest 12,000 Average Esc. + Harvest (1978 thru 1995) = 4,118 Average Esc. + Harvest (1997 thru 2005) = 9,365 (1996 not included since no fish were released for 1992 brood) Return Year Hatchery Escapement Tribal Harvest in Carr Inlet Adult Escapement @ Issaquah Hatchery Issaquah Fall Chinook Escapement Increase 14,000 12,000 The 1999 brood chinook were the first group to benefit from new ponds. First returns from this improved rearing condition would have been in 2002-03. 10,000 Avg. esc. 1978 thru 2001 = 3,542 Avg. esc. 2002 thru 2007* = 8,653 8,000 6,000 4,000 2,000 19 78 19 79 19 80 19 81 19 82 19 83 19 84 19 85 19 86 19 87 19 88 19 89 19 90 19 91 19 92 19 93 19 94 19 95 19 96 19 97 19 98 19 99 20 00 20 01 20 02 20 03 20 04 20 05 20 06 20 07 0 Return Year Disease Outbreak Frequency at Minter Creek Hatchery Before the Remodel Low Temp outbreaks would cause loss of 60-80,000 Fall Chinook/Coho sub-yearlings every year Furunculosis annually with the adult brood After the Remodel New deeper ponds allow for a lower density Index Minimal handling of adult brood with the use of the fish chute to sort adults from the fish ladder into brood ponds, upstream, or downstream Disease Outbreak Frequency @ Issaquah hatchery Before Remodel: CV average of 6.32 of Fall Chinook juveniles @ release After Remodel: CV average of 5.73 of Fall Chinook juveniles @ release Issaquah Hatchery Pre-Remodel Issaquah Hatchery Post-Remodel Cost of Operation Minter Creek Hatchery Gravity station turning into a pump station Additional pumps to apply a de-nitrogen tower/ reuse system Issaquah Hatchery Reduced crew size by one employee Time Efficiency Minter Hatchery Workload decreased for sorting, crowding, and handling of adults Slight increase in hatchery alarms due to the upgrade into a pump station Issaquah Hatchery Decrease in fish culture work load Increase in workload to maintain the landscape at the facility Economic Activity First hurdle: How do you measure the economic impact of a specific Hatchery? Economic Value Average annual increase of 2% in fishing licenses sold. Total of 286,000 anglers who saltwater fished in 2006. Over 1.5 million total days of effort. Over 900 million dollars in fishing related expenditures. $1,900 of economic activity that is generated from each Fall Chinook. Educational Value Minter Creek Hatchery • 17 volunteer rearing projects • 87 Salmon in the Classroom projects Issaquah Hatchery • Salmon life cycle exhibits • Numerous Salmon in the Classroom projects • Huge emphasis on watershed stewardship and salmon education • Main focal point of Issaquah Salmon Days annual event Priorities for Future Hatchery Remodel Events Hatchery reform Legal obligations Intake Screen Requirements NPDES Discharge Requirements (state and federal) HSRG recommendations Resources WDFW Escapement Reports Minter Creek Hatchery staff Issaquah Salmon hatchery staff Dennis Popochock, Minter/Hood Canal Hatchery Complex Manager Rich Eltrich, South Sound/Lakewood Hatchery Complex Manager John Kerwin – WDFW U.S Department of the Interior, Commerce, Census Bureau, Fish and Wildlife Service. 2006 National Survey of Fishing, Hunting, and Wildlife Related Recreation 2008 APPLE CUP: THE ONLY GAME THAT REALLY COUNTED!
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