| Area | Basin-wide/Regional |
| Topic | Tour: Fish Species of the Russian River, Salmonids |
This photo shows adult Chinook salmon moving through the video monitoring station at Mirabel dam in October 2002. Image provided courtesy of the Sonoma County Water Agency.
Sonoma County Water Agency crews annually survey for Chinook salmon redds on the mainstem Russian and often find Chinook salmon carcasses like this one. Chinook salmon all die after spawning and are recognized as a significant contributor of nutrients to streams and riparian forests as a result. Image provided courtesy of the Sonoma County Water Agency.
This is a closeup of a wild Chinook salmon juvenile captured in the downstream migrant trap operated near Wohler Bridge on the lower Russian River. It can be distinguished from a steelhead by its broader body and strongly forked tail. Chinook go downstream to the ocean the same year they are born. Image provided courtesy of the Sonoma County Water Agency.
This picture shows an adult male steelhead during a fish rescue operation sponsored by the Sonoma County Water Agency. The distinctive rainbow stripe and rose color on the gill cover indicate that this is the sea-going rainbow trout and the hook jaw indicates it is a male. Image provided courtesy of the Sonoma County Water Agency.
Juvenile steelhead are shown here under water near Squaw Rock on the mainstem Russian River. The distinctive rainbow stripes, blocky tail and round parr marks indicate that these are steelhead. The canyon reaches of the Russian River have turbulent water that increases dissolved oxygen and provides cover for steelhead. Image provided courtesy of the Sonoma County Water Agency.
This is a large, wild steelhead smolt headed for the ocean, but intercepted by a downstream migrant trap operated at Mirabel dam. This fish is nearly eight inches long (200 mm), which indicates it has spent at least two years rearing somewhere in the Russian River basin and its likely survival in the ocean is high. Image provided courtesy of the Sonoma County Water Agency.
This picture is of an adult coho salmon, but the picture was not taken in the Russian River, but rather in Little River, Humboldt County. The large snout or kype is one indication that this is a male, adult coho salmon and the smaller spots on the upper back help distinguish it from a Chinook. Photo courtesy of Tom Weseloh, Cal Trout.
A juvenile coho salmon smolt is pictured here, which is distinguishable from a steelhead trout by its larger eye and more strongly forked tail. This photo was taken at a downstream migrant trap in Freshwater Creek, Humboldt County, not in the Russian River basin. Photo courtesy of the Humboldt Fish Action Council.
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