The results from recent work at the confluence of Deer Creek and the Lower Yuba River mean good news for spawning Central Valley Chinook salmon, according to scientists at the Nevada City-based non-profit Sierra Streams Institute. Survey results show a four-fold increase this year in the number of salmon redds, or nests, compared to last year in Deer Creek’s critically important habitat reach, one of the final spawning areas before fish passage is blocked by Englebright Dam, according to a Friday news release issued by Sierra Streams. Sierra Streams Institute received grant funding to improve conditions for spawning salmon from …