2024-2025 was the second consecutive wet water year in the Scott Valley sub-basin of the Klamath River,
though only around historical averages (Figure 1). The Scott River stayed flowing and connected
throughout the valley during the base flow period of mid-July thru September 2024. The Scott River weir
was removed on November 19, 2024, and reinstalled on December 4, 2024, while the weir was out,
CDFW used sonar to monitor fish passage the Scott weir was removed again on December 13, 2024 and
sonar was operated until December 19, 2024 when the Scott counting station was taken out for the season
(Giudice, 2025). 706 adult coho salmon have been observed through December 13, 2024. In general,
information from the spawning ground surveys helps predict where juvenile rearing is expected within the
watershed. A total of 24.82 river miles were surveyed (8.33 river miles on the mainstem and 16.49 river
miles on tributaries). Surveys were conducted as conditions allowed through the active period of the run
and consisted of trained two-person field crews hiking established reaches either in-stream or along the
bank in waders. Field technicians counted the number of live fish by species, documented the location and
dimensions of redds, and collected biological samples (scale, tissue, and otolith) from recovered
carcasses. A total of ten coho redds were recorded by surveyors on the Scott River mainstem and
tributaries. A total of eight coho carcasses were recovered, sexed, measured, and sampled.