Thursday April 25, 2024
Hydro Review —
The Bureau of Reclamation, NOAA Fisheries and the U.S. Fish & Wildlife Service announced the plan for pulse flow releases from Keswick Dam into the Sacramento River.
Additionally, Reclamation has coordinated with state, federal and local agencies and Tribes to develop a Pulse Flow Study Plan.
Pulse flows are rapid increases and decreases in dam-released flows, occurring over the course of a week, and are intended to improve juvenile chinook salmon survival as they migrate to the ocean. Spring-run chinook salmon juveniles typically experience the worst outmigration conditions due to their later outmigration timing. To support the outmigration success of this year’s spring-run chinook salmon juveniles, April and May pulse releases provide the greatest species benefit. In addition, the timing of these pulses may also benefit the Coleman National Fish Hatchery juvenile fall-run chinook salmon, which were released recently.