| Area | Basin-wide/Regional |
| Topic | Fish: Chinook Spawning Redds/Km by Reach Mainstem Russian 2002 |
This map image is Figure 1 from Cook (2003a) showing the distribution of Chinook salmon redds in 2002 in the upper Russian River mainstem, where the concentration of spawners was highest. Picture #2 shows the lower half of this same map. See InfoLinks for more information.
This map image is the lower half of Figure 1 from Cook (2003a), which shows diminished Chinook salmon spawning activity in the lower mainstem Russian River as compared to upper reaches. Although the mainstem reaches of the Russian River below Redwood Hole were cut off in this image, there were no redds downstream. See InfoLinks for more information.
This photo shows a decaying Chinook salmon carcass photographed during Sonoma County Water Agency Chinook salmon redd counts in the fall 2002. Photo courtesy of the Fisheries Department of the Sonoma County Water Agency. See InfoLinks for more information.
Crews travel the river in kayaks weekly to count Chinook salmon redds, which can be seen as cleaner patches just offshore and at below center in this photograph taken in fall 2002. Photo courtesy of the Fisheries Department of the Sonoma County Water Agency. See InfoLinks for more information.
This closeup photo shows the clean gravel and small cobble typical of a fresh Chinook salmon redd. The female reduces fine sediment in the redd by fanning her tail. Photo courtesy of the Fisheries Department of the Sonoma County Water Agency. See InfoLinks for more information.
A diver looks for adult Chinook salmon in the pool below Squaw Rock along the mainstem Russian River in fall 2002. Dive surveys monitored the progress of adult migrations, which helped in planning the timing of redd surveys. Photo courtesy of the Fisheries Department of the Sonoma County Water Agency. See InfoLinks for more information.
This photo shows a reach near Healdsburg which was surveyed for Chinook salmon redds in fall 2002. Photo courtesy of the Fisheries Department of the Sonoma County Water Agency. See InfoLinks for more information.
Sonoma County Water Agency fisheries staff move downstream in kayaks during fall Chinook salmon redd surveys in 2002. Photo courtesy of the Fisheries Department of the Sonoma County Water Agency. See InfoLinks for more information.
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