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Monitor Natural Escapement and Productivity of John Day Basin Spring Chinook Project # 199801600 Oregon Department of Fish & Wildlife James Ruzycki Richard.

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Presentation on theme: "Monitor Natural Escapement and Productivity of John Day Basin Spring Chinook Project # 199801600 Oregon Department of Fish & Wildlife James Ruzycki Richard."— Presentation transcript:

1 Monitor Natural Escapement and Productivity of John Day Basin Spring Chinook Project # 199801600 Oregon Department of Fish & Wildlife James Ruzycki Richard Carmichael Wayne Wilson Terra Lang Schultz Derek Wiley

2 Salmonid Productivity, Escapement, Trend, and Habitat Monitoring in the John Day River Basin Project # 199801600 Oregon Department of Fish & Wildlife James Ruzycki Richard Carmichael Wayne Wilson Terra Lang Schultz Derek Wiley

3 Columbia Plateau

4 Objectives Provide accurate and precise status and trend data for Chinook and steelhead of the John Day River basin. –Escapement estimates –Population characteristics »Age composition »Distribution –Smolt-to-adult returns (SAR) –Smolt production –Habitat monitoring

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7 Methods Spawning ground surveys Escapement Distribution Age composition Stray rates Seining and Rotary Screw Traps SAR –PIT tagging –Dam detections Smolt Production –Mark recapture Steelhead Status EMAP ODFW Aquatic Inventories

8 Smolt collection points

9 Results Chinook spawning ground surveys Documented redds in new locations Trend monitoring Basin-wide escapement estimates Age structure GIS database Stray rates

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11 Results Chinook spawning ground surveys Documented redds in new locations Trend monitoring Basin-wide escapement estimates Age structure GIS database Stray rates

12 Spring Chinook Escapement Number of Redds YearNorth ForkMiddle ForkMainstemTotalEscapement 2000 9295693811,8795,637 20011,0773544321,8635,589 20021,0573915071,9555,865 2003 8582363231,4174,251

13 Results Chinook spawning ground surveys Documented redds in new locations Trend monitoring Basin-wide escapement estimates Age structure GIS database Stray rates

14 Adult Chinook Size Distribution

15 Chinook % Age Composition YearAge 3Age 4Age 5 1998 2.981.615.5 1999 6.389.2 4.5 2000 1.896.9 1.3 2001 2.789.5 7.8 2002 2.794.3 3.0 2003 4.383.212.6

16 Results Chinook spawning ground surveys Documented redds in new locations Trend monitoring Basin-wide escapement estimates Age structure GIS database Stray rates

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19 Results Chinook spawning ground surveys Documented redds in new locations Trend monitoring Basin-wide escapement estimates Age structure GIS database Stray rates

20 YearCarcassesMarked Fish% 1998 345 00.0 1999 405 41.0 20001,530171.1 20011,355100.7 2002 988101.0 2003 836293.5 Chinook Strays

21 Results Smolt seining and trapping SAR from PIT tagging Basin-wide production Age structure of steelhead smolts

22 Spring Chinook Smolt-to-Adult Returns # Returning Adults CohortTag Year# taggedAge 3Age 4Age 5SAR 199820001,8524112287.8% 199920013,8937 80152.6% 200020024,0005 86 200120036,1475 200220044,017

23 Summer Steelhead Smolt-to-Adult Returns # Returning Adults Tag Year# tagged20022003SAR 2001 4351 51.4% 2002-- 2003 144 20043,668

24 Results Smolt seining and trapping SAR from PIT tagging Basin-wide production Age structure of steelhead smolts

25 Smolt Production YearAbundance95% CLs 2001 92,92279,258-111,228 2002103,09790,280-119,774 2003 83,39476,739-91,734

26 Results Smolt seining and trapping SAR from PIT tagging Basin-wide production Age structure of steelhead smolts

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28 Results Steelhead Status EMAP sampling protocol Spawner surveys Juvenile surveys Habitat ODFW Aquatic Inventories

29 Steelhead EMAP Sample Sites

30 Conclusions Monitoring project Subbasin-wide Columbia Basin comparisons CSS Long-term dataset Chinook and steelhead


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