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![BROOD YEAR 2016 JUVENILE SALMONID PRODUCTION AND PASSAGE INDICES AT RED BLUFF DIVERSION DAM](/sites/default/files/styles/max_325x325/public/documents/by2016_rbdd_rst_final_annal_report_071618.pdf-p1.jpeg?itok=CQmU1k0q)
Brood year 2016 (BY2016) juvenile winter Chinook salmon estimated passage at Red Bluff Diversion Dam (RBDD) was 537,517 for fry and pre-smolt/smolts combined. The fry-equivalent rotary trap juvenile production index (JPI) was estimated at 640,149 with the lower and upper 90% confidence intervals (CI) extending from 429,876 to 850,422 juveniles, respectively. The estimated egg-to-fry (ETF) survival rate, based on the brood year 2016 winter Chinook fry-equivalent JPI was 23.7%. The range of ETF survival rates based on the 90% CI were 15.9% to 31.5%.
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