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NOAA Mainstem PIT Tag Research

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Presentation on theme: "NOAA Mainstem PIT Tag Research"— Presentation transcript:

1 NOAA Mainstem PIT Tag Research
NWPCC Tagging Forum-PIT tags March 22, 2012 Bill Muir Northwest Fisheries Science Center NOAA Fisheries

2 Outline Reach survival Hydropower system survival
Hydropower system travel time Seasonal effects of transport PIT tag trawl Bird predation

3 Reach Survival Estimates
Used to assess progress in improving inriver travel time and survival and identify problem areas in the hydropower system

4 Reach Survival Estimates
Used to assess progress in improving inriver travel time and survival and identify problem areas in the hydropower system Relies mostly on tagging from other studies throughout the basin

5 Reach Survival Estimates
Used to assess progress in improving inriver travel time and survival and identify problem areas in the hydropower system Relies mostly on tagging from other studies throughout the basin Under represented species tagged at Lower Granite (wild Chinook, wild and hatchery steelhead)

6 Reach Survival Estimates
Used to assess progress in improving inriver travel time and survival and identify problem areas in the hydrosystem Relies mostly on tagging from other studies throughout the basin Under represented species tagged at Lower Granite (wild Chinook, wild and hatchery steelhead) Estimates are from tailrace to tailrace (1 dam and reservoir)

7 Yearling Chinook salmon reach survival 2011 Average 91.2 91.4 91.9
LGR LGO LMO 91.2 SRT 91.4 ICE BON TDA JDA MCN 2011 91.9 96.6 89.3 76.6 (87.5) 94.3 84.5 95.1 93.6 94.2 89.6 81.2 (89.8) 86.5 MCN JDA LMO LGR LGO SRT BON Average Standard errors not shown

8 Steelhead reach survival 2011 Average 92.8 83.9 95.5 94.8 96.0
LGR LGO LMO 92.8 SRT 83.9 ICE BON TDA JDA MCN 2011 95.5 94.8 96.0 85.8 (92.6) 98.6 77.2 96.7 93.0 91.2 83.8 74.5 (86.0) 75.5 MCN JDA LMO LGR LGO SRT BON Average Standard errors not shown

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18 Release–Recapture Model Single-Release Design
CJS Survival Model R s1 p1 Lower Granite Dam s2 p2 Little Goose Dam Release–Recapture Model Single-Release Design s3 p3 Lower Monumental Dam s4 p4 McNary Dam s5 p5 John Day Dam s6 p6 Bonneville Dam  = S p PIT tag trawl

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20 Upper Estuary Sample Site Near Jones Beach, rkm 61-83

21 Columbia Basin PIT Tag Releases
Detections at Bonneville Dam and Estuary Trawl (Rkm 75) Detections (n) Released (n) Releases Bonneville Detections Estuary Trawl Detections 50,000 100,000 200,000 250,000 500,000 1,000,000 1,500,000 2,000,000 2,500,000 3,000,000 150,000 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2010 (2.6 million released) Bon = 208k Trawl = 31k Trawl sample = 902 hrs 2011 (2.5 million released) Bon = 60k Trawl = 14k Trawl sample = 669 hrs

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23 Flat-plate detector scanning PIT tags on the East Sand Island Caspian tern colony.

24 Hand scanning for PIT tags on Goose Island in the Potholes Reservoir.

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28 Questions 28

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