Redd survey data of Chinook salmon in the Feather River

Since 2014, the California Department of Water Resources (DWR) has
conducted annual Chinook salmon redd surveys. The objective of this
data collection effort is to quantify and understand potential
shifts in redd distribution and potential habitat differences
between historic and restored sites. The redd surveys are conducted
in the uppermost 16 miles of the lower Feather River though have
been concentrated in the uppermost two miles of the lower Feather
River in, and adjacent to the Gravel Supplementation Areas (GSAs).
Redd surveys are conducted less frequently in the 14 miles
downstream of the GSAs. Surveys typically begin in mid-September at
the onset of spawning and generally conclude at the end of November.
This dataset represents an extensive time series that could be used
to identify habitat conditions where Chinook salmon spawn, how these
conditions have changed over time, especially in areas where
restoration has occurred. These data were published to support the
Healthy Rivers and Landscapes Program.