Steelhead status 2010 update Steelhead statusinin Idaho 2010

Steelhead status 2010 update Steelhead statusinin. Idaho– 2010 update Photograph by Ron Roberts

Dworshak 1972 Hells Canyon 1967

Lower Granite Dam

Steelhead return to Lower Granite Dam 300 000 Wild Hatchery Mitigation goal 250 000 200 000 150 000 100 000 50 000 0 2010 2008 2006 2004 2002 2000 1998 1996 1994 1992 1990 1988 1986 1984 1982 1980 Spawn year

Proportion of wild Steelhead at Lower Granite Dam 1, 0 Proportion wild fish 0, 9 0, 8 0, 7 0, 6 0, 5 0, 4 0, 3 0, 2 0, 1 0, 0 2010 2008 2006 2004 2002 2000 1998 1996 1994 1992 1990 1988 1986 1984 1982 1980 1978 1976 1974 1972 1970 Spawn Year

Fall 2010 Return at Lower Granite Dam Large (> 78 cm) Clipped Hatchery Unclipped Hatchery

Snake and Salmon drainages--Steelhead fishing area

Clearwater drainage--Steelhead fishing area

Steelhead fall harvest in Idaho since 2000 35 000 30 000 25 000 20 000 15 000 10 000 5 000 10 920 0 09 820 0 8 -0 07 07 6 Snake 20 Salmon 20 0 6 -0 20 Clearwater 05 05 420 0 4 -0 03 220 0 2 -0 01 20 20 00 -0 1 0

Steelhead spring harvest in Idaho since 2000 40 000 30 000 20 000 10 000 0 2000 -01 2001 -02 2002 -03 2003 -04 Salmon 2004 -05 Snake 2005 -06 2006 -07 2007 -08 2008 -09 Clearwater

Comparison of Chinook and Steelhead harvest 100 000 90 000 80 000 70 000 60 000 50 000 40 000 30 000 20 000 10 000 0 2001 2002 2003 2004 2005 Calendar Year Chinook Steelhead 2006 2007 2008 2009

Yearly Angler effort (days fished) 350 000 Angler days fished 300 000 250 000 200 000 150 000 100 000 50 000 0 2001 2002 2003 2004 2005 Chinook Calendar Steelhead. Year 2006 2007 2008 2009