| Area | Basin-wide/Regional |
| Topic | Tour: Fish Science Projects in the Russian River Basin by SCWA |
Sonoma County Water Agency Fisheries Department staff gets ready for dive observations of fish below the Mirabel inflatable dam on the lower Russian River. Diving is used as a survey technique in the upper Russian River steelhead assessment and as part of the Chinook salmon spawning studies. Photo provided by the Sonoma County Water Agency.
Divers peer into deep mainstem Russian River pool as part of the fall Chinook spawning studies. Photo provided by the Sonoma County Water Agency.
Electrofishing is used to study fish populations in Wohler ponds, Lake Mendocino and Sonoma, and in the mainstem Russian River just upstream of the Mirabel inflatable dam. Modern electrofishing equipment stuns the fish, but rarely causes mortality. Fish are identified, weighed and measured before being returned to the water. Photo provided by the Sonoma County Water Agency.
The Sonoma County Water Agency has completed habitat typing inventories of several Russian River tributaries and sections of the mainstem Russian River as well. Photo provided by the Sonoma County Water Agency.
Wetsuit clad Sonoma County Water Agency staff person is in the field to deploy automated temperature probes that measure water temperatures throughout summer at a number of Russian River locations. Photo provided by the Sonoma County Water Agency.
Sonoma County Water Agency staff shows a high school student how to take scale samples during night time electrofishing. Scales can be used to monitor the age and growth of fish. Photo provided by the Sonoma County Water Agency.
Electrofishing is used in conjunction with habitat typing in small streams to assess the fish community structure and to discover the age structure of juvenile and resident fish. Photo provided by the Sonoma County Water Agency.
Sonoma County Water Agency staff lend a hand at the Warm Springs Hatchery, which is operated by the California Department of Fish and Game. Photo provided by the Sonoma County Water Agency.
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