Salmon & Steelhead Recovery Tracker

Umpqua (Stratum)

The Umpqua biogeographic stratum includes the historic distribution of coho in all watersheds that drain into the Umpqua estuary. There are 4 independent populations and no dependent populations in the stratum.

The trend in adult abundance is presented for all strata. Analyses for other criteria are available for the individual populations contained within each stratum.

Oncorhynchus kisutch

Abundance

Annual estimates of the abundance of naturally-produced spawners for each stratum.

Spawning Year Nat. Origin Spawners Broad Sense Goal Percent of Goal
2021 49,266 244,300 20.2%
2020 33,644 213,800 15.7%
2019 19,155 110,900 17.3%
2018 24,035 213,800 11.0%
2017 15,492 213,800 7.2%
2016 7,494 213,800 3.5%
2015 14,860 110,900 13.4%
2014 66,272 244,300 27.1%
2013 27,016 213,800 12.6%
2012 20,948 213,800 9.8%
2011 94,655 244,300 38.7%
2010 70,019 244,300 28.7%
2009 57,984 244,300 23.7%
2008 37,868 213,800 17.7%
2007 11,783 110,900 10.6%
2006 18,092
2005 42,532
2004 29,920
2003 34,783
2002 43,504
2001 35,084
2000 14,594
1999 8,576
1998 9,751
1997 3,334
1996 21,180
1995 20,112
1994 6,904
1993 15,453
1992 9,086
1991 11,203
1990 6,189

Harvest

Fishing Year Harvest Rate Mortality
2020 12% 389
2019 15% 3,256
2018 12% 3,292
2017 10% 1,804
2016 7% 601
2015 18% 3,309
2014 12% 9,517
2013 15% 4,795
2012 17% 4,351
2011 5% 4,664
2010 4% 2,714
2009 5% 3,220
2008 2% 583
2007 11% 1,520
2006 8% 1,488
2005 4% 1,958
2004 8% 2,496
2003 8% 3,025
2002 5% 2,242
2001 3% 1,272
2000 4% 640
1999 7% 675
1998 8% 802
1997 9% 334
1996 6% 1,400
1995 11% 2,385
1994 6% 472

Hatchery Proportion

Spawning Year Proportion Hatchery
2021 0.7%
2020 2.5%
2019 3.1%
2018 1.7%
2017 1.6%
2016 7.0%
2015 3.8%
2014 1.6%
2013 2.9%
2012 2.9%
2011 1.4%
2010 4.4%
2009 4.0%
2008 1.1%
2007 24.7%
2006 34.6%
2005 18.0%
2004 19.6%
2003 20.4%
2002 16.4%
2001 33.6%
2000 36.0%
1999 22.1%
1998 33.4%
1997 35.0%
1996 35.3%
1995 10.3%
1994 28.4%
1993 14.2%
1992 28.4%
1991 25.0%
1990 24.1%