Presentation is loading. Please wait.

Presentation is loading. Please wait.

May 10, 2012 Presented by Micki Varney Oregon Department of Fish and Wildlife.

Similar presentations


Presentation on theme: "May 10, 2012 Presented by Micki Varney Oregon Department of Fish and Wildlife."— Presentation transcript:

1 May 10, 2012 Presented by Micki Varney Oregon Department of Fish and Wildlife

2 Evaluate Performance objectives Gauge effectiveness of recovery measures Measure progress toward recovery and mitigation goals Maintain accountability Provide basis for adaptive management

3  Hatchery Evaluation/Management Evaluate hatchery rearing and release strategies Estimate Contributions to fisheries Brood stock management Smolt-to-Adult Return Rates (SAR’s)  Wild/Hatchery proportions, pHOS  Run size and composition  Distribution and abundance (fisheries and on spawning grounds)

4

5 Mouth of Snake River (Col Rkm 522) Rkm 95 Rkm 173 Rkm 346 Hells Canyon Dam Rkm 397.4

6 Ice Harbor Lower Monumental Lower Monumental Little Goose Lower Granite Historical Fall Chinook Returns to the Snake Basin and timing of Lower Snake Dam Construction 1962-1985 (Ice Harbor Dam Window Counts)

7 Lower Snake River Fish and Wildlife Compensation Plan (LSRCP) - 1976 Mitigate for juvenile passage mortality and direct loss of spawning area for 5,000 fall Chinook Return 18,300 adults/year to the Snake River Basin In-place and in-kind (maintain genetic integrity)

8

9 Roles of Players in the Egg Bank Program Kalama Falls Hatchery Lower Columbia River Juvenile releases and collection of Returning Adults Ice Harbor Dam Lower Snake River Adult Collection Lyons Ferry Hatchery Lower Snake River Juvenile releases and Adult collection 1976 1986 Hagerman Hatchery Mid-Snake Juvenile releases Little Goose Dam

10 Lyons Ferry Hatchery 1980-1984

11  9.16 million subyearling smolts (101,880 lbs) at 90 fpp (80 mm) expected smolt-to-adult return (SAR) of 0.2%  Idaho Power Co. mitigation for Hells Canyon Complex for 1.3 million eyed eggs due after LFH reached 80% of capacity

12 Very high stray rate—could jeopardize the SRF stock integrity

13  1989 Brood Progeny Initiated 100% wire-tagging  Modified broodstock collection protocol LGR trapping Unmarked fish  Beginning in 1990, CWT’s were read prior to combining the gametes Fall Chinook trapped at Lower Granite Dam

14

15

16  Yearling/Subyearling Comparative Survival Study (1985- 1990)  Snake River Fall Chinook ESA Listed as threatened in 1992  Fall Chinook Acclimation Program (FCAP)-1996

17 Subyearling Mean = 0.05 Yearling Mean = 0.59

18 1996 1998 1997

19 Natural Production 2008 Total: 3,055

20 120 Fall Chinook Redds located in the Clearwater River near Big Canyon Creek 2007.

21 ESA Listed

22 Hatchery Spawners Natural Spawners pHOS = proportion of fish spawning in wild consisting of hatchery-origin fish pHOS pNOB pNOB = proportion of broodstock consisting of natural-origin fish pHOSpNOB PNI  

23 Stock and age compostion of fall Chinook run to Lower Granite Dam Stray rates Run timing Jack proportions Hatchery/Wild Estimate the number of natural origin Snake River fall Chinook for ESA (natural spawner abundance

24 Downstream passage NPTH swim-ins Trapping Period Separate Run Comp Estimates are calculated for: # unique Fish Trapped in Sample Unique Fall Chinook Arriving at LGR Expanded Window counts pre and post trapping = + Multiply by the Inverse of Trap Rate Run to LGR During Trapping Period Abundance of Potential Spawners Harvest above LGR Hauled to Hatchery Pre-and Post- Trapping Periods

25 Fish Trapped in Sample At Lower Granite Adult Trap Determine Composition By Origin, Sex and Age Released above LGR Coded-Wire Tagged Fish Scale Analysis DNAPIT Tags Assign Lost tags Determine composition of CWT fish Untagged fish *Age, life history, Origin? Origin? H/W? Definite Age, Origin, Release Location and Rearing info Estimate untagged hatchery fish associated with CWT recoveries (Ad Only and unmarked) Hauled to LFH or NPTH *Age, Origin? H/W Determine composition of Untagged fish HATCHERY WILD Determining The Hatchery/Wild Proportion-- A Process of Elimination WILD CLIPPED UNCLIPPED CLIPPED UNCLIPPED

26 Snake River Hatchery Fish Age 2Age 3Age 4Age 5Age 6Unknown Age CWTOriginMJMFJMFJMFMFMFJAdultJack Total 630678LF00YPA 8 808 612501LF01SPA 37 100 610120LF01YPA 16 707 610123LF02SPA 42 606 612502LF02YPA 742 11213 107976LF03SIPCPA 2 022 610146LF03YPA 5 055 610149LF03YPA 5 055 630168LF99SCJA 1 101 630183LF00YCJA 21 303 610105LF01SCJA 513 180 610105LF01SCJA2 211 130 610105LF01SCJA2 RES REAR 1 101 610106LF01SCJA 11 0 610145LF03YBCA 13 0 610147LF03YBCA 8 088 610107NPTH02SO1 1 101 610109NPT02SNLVA 1 101 610110NPTH02SO2 55 100 612675NPTH03SA 4 044 630476LF99YO 2 202 631273LF00YO 930 390 630890LF01SO 28 100 631585LF01YO 32781 1101111 631391LF02SCCD 13 404 631545LF02SO 23 505 632167LF02YO 212 230 631769LF03YO 34 0 631770LF03YO 30 0 631786LF03SO 4 044 632368LF03YO 1 011 Left Red VIELF - LOST TAG 111213 Left Blue VIELF-CJA - LOST TAG 1011 Right Green VIELF-PLA - LOST TAG 1101 Left Red VIELF - HAT SUB AGE 4 COUSE CR DIRECT 1 101 Left Red VIE LF - HAT SUB RES REAR AGE 3 COUSE CR DIRECT 1 101 Left Red VIELF HATCHERY SUB RES REAR AGE 5 1 101 Lost TagHATCHERY SUB AGE 21 101 Lost TagHATCHERY SUB RES REAR AGE 4 1 101 subtotal21251725841383461155904342801132933

27

28

29

30 Hatcheries Recovery Conservation

31 Bonneville Power Administration Washington Dept. of Fish and Wildlife US Fish and Wildlife Service Nez Perce Tribe Additional photos: David Frame, Mike Key

32 Questions?


Download ppt "May 10, 2012 Presented by Micki Varney Oregon Department of Fish and Wildlife."

Similar presentations


Ads by Google