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 Abundance Goal Percent of Goal
2016 213,800 3.5%
2015 110,900 13.4%
2014 244,300 27.1%
2013 213,800 12.6%
2012 213,800 9.8%
2011 244,300 38.7%
2010 244,300 28.7%
2009 244,300 23.7%
2008 213,800 17.7%
2007 110,900 10.6%
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994