Annual estimates of the abundance of naturally-produced spawners for each stratum.
The Mid-South Coast biogeographic stratum includes the Threemile Creek watershed north of the Umpqua River and all Oregon coastal watersheds from Coos Bay in the north to the Sixes River in the south. There are a total of 4 independent populations and 1 dependent population group in the stratum. The dependent population group consists of 3 separate dependent populations.
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
Annual estimates of the abundance of naturally-produced spawners for each stratum.