The U.S. Bureau of Reclamation has cut water releases from 1,100 cubic feet per second down to 500 feet.
"That has exposed some of the fall run salmon nests or 'redds' as they're called, r-e-d-d."
Tom Ghoring is with the Sacramento Water Forum.
On Capital Public Radio's Insight with Beth Ruyak, Ghoring said early surveys show that reductions, prompted by the dry winter, have left 15 percent of salmon nests or "redds" out of water.
"We know that exposing them is harmful to them. An exposed redd doesn't necessarily kill the eggs buried in the redd, but some of the nearby redds that are still underwater may be harmed so much that they could die."
~Tom Ghoring, Sacramento Water Forum
Reclamation officials say reducing water flows into the American River will help conserve the water supply stored behind Folsom Dam.
Insight will have more about how the lack of rain is impacting the region, coming up at 9 a.m.
Strong El Niño forecast expected through Spring.
Despite a potential strong El Niño, the drought in most of California is forecast to continue into a fifth year.
(AP) - A Northern California city has ordered restaurants to cut back on dishwashing by using disposable plates and cups as a way to save water amid the state's fourth year of drought.
Water storage has dwindled at six major reservoirs in California.
(AP) - Residents of the Fresno County city of Clovis will no longer be fined if they use too much water after this month.