“When these fish are on the brink of extinction, as they are in the South Umpqua River, it’s the strongest ... and spawning in early fall in the upper reaches of watersheds. Fall-run Chinook enter the ...

Conversely, fall-run Chinook enter the rivers in the fall and spawn ... South Umpqua Spring Chinook disappear,” said Stanley Petrowski, river advocate and member of both Umpqua Watersheds and Native ...

Although the fish were once abundant throughout the river basins of the Pacific Northwest, Chinook salmon populations have declined to a fraction of their historical size. "Umpqua Watersheds has ...