brood_year	value	component	origin	JPE_letter_date	footnote	references_contributors	lower_95_CI	upper_95_CI
1992	NA	Estimated smolt survival term	Natural	NA	NA	NA	NA	NA
1993	NA	Estimated smolt survival term	Natural	NA	NA	NA	NA	NA
1994	NA	Estimated smolt survival term	Natural	NA	NA	NA	NA	NA
1995	NA	Estimated smolt survival term	Natural	NA	NA	NA	NA	NA
1996	NA	Estimated smolt survival term	Natural	NA	NA	NA	NA	NA
1997	NA	Estimated smolt survival term	Natural	NA	NA	NA	NA	NA
1998	NA	Estimated smolt survival term	Natural	NA	NA	NA	NA	NA
1999	NA	Estimated smolt survival term	Natural	NA	NA	NA	NA	NA
2000	NA	Estimated smolt survival term	Natural	NA	NA	NA	NA	NA
2001	0.56	Estimated smolt survival term	Natural	2002-02-22	7/ Based on ocean recoveries of paired CWT releases from Battle Cr, 1994-1999 (FWS 2002, unpublished)	NA	NA	NA
2002	0.52	Estimated smolt survival term	Natural	2003-02-19	7/ Average of ocean recoveries of paired Late-Fall Chinook from Coleman National Fish Hatchery released at Battle Cr. and Delta locations from 1994-99 (USFWS 2003, unpubl.)	NA	NA	NA
2003	NA	Estimated smolt survival term	Natural	NA	NA	NA	NA	NA
2004	NA	Estimated smolt survival term	Natural	NA	NA	NA	NA	NA
2005	0.53625	Estimated smolt survival term	Natural	2006-02-10	7/ Average of ocean recoveries of paired Late-Fall Chinook from Coleman National Fish Hatchery released at Battle Cr. and Delta locations from 1994-2001 (USFWS, unpubl. data, Chippstable 2005)	NA	NA	NA
2006	0.53625	Estimated smolt survival term	Natural	2007-02-15	7/ Average of ocean recoveries of paired Late-Fall Chinook fmm Coleman Hatchery released at Battle Cr. and Delta locations from 1994-2001 (USFWS, unpubl. data, Chippstable 2005)	NA	NA	NA
2007	NA	Estimated smolt survival term	Natural	NA	NA	NA	NA	NA
2008	0.53625	Estimated smolt survival term	Natural	2009-01-12	7/ Average of ocean recoveries paired Late-Fall from Coleman Hatchery released at Battle Creek and in Delta locations from 1994-2001 (USFWS, unpubl. data, Chippstable 2005)	NA	NA	NA
2009	0.53625	Estimated smolt survival term	Natural	2010-02-24	7/ Average of ocean recoveries paired Late-Fall from Coleman Hatchery released at Battle Creek and in Delta locations from 1994-2001 (USFWS, unpubl. data, Chippstable 2005)	NA	NA	NA
2010	0.53625	Estimated smolt survival term	Natural	2011-01-12	7/ Average of ocean recoveries paired Late-Fall from Coleman NFH released at Battle Cr.and Delta locations from 1994-2001 (USFWS, unpubl. data, Chippstable 2005)	NA	NA	NA
2011	0.53625	Estimated smolt survival term	Natural	2012-01-26	8/ Average of ocean recoveries of paired Late-Fall releases from Coleman NFH released at Battle Cr.and Delta locations from 1994-2001 (USFWS, unpubl. data, Chipps Table 2005)	NA	NA	NA
2012	0.53625	Estimated smolt survival term	Natural	2013-01-31	8/ Average of ocean recoveries of paired Late-Fall releases from Coleman NFH released at Battle Creek and Delta locations from 1994-2001 (USFWS, unpubl. data, Chipps Table 2005)	NA	NA	NA
2013	0.27	Estimated smolt survival term	Natural	2014-02-21	10/ Survival of acoustically tagged winter run in 2014 between Salt Creek and Tower Bridge - A. Ammann, personal communication	NA	NA	NA
2014	0.42	Estimated smolt survival term	Natural	2015-01-16	10/ Survival of acoustically tagged winter run in 2014 between Salt Creek and Tower Bridge - A. Ammann, personal communication	NA	NA	NA
2015	0.42	Estimated smolt survival term	Natural	2016-01-28	10/ Average survival of acoustically tagged winter run in 2013, 2014 and 2015 (2 values in 2015) between RBDD and 180 Tower Bridge in Sacramento - A. Ammann, NMFS, personal communication. Survival is estimated from the Salt Creek receiver site, located 3 miles downstream of RBDD, to estimate survival from RBDD for acoustic tag studies.	NA	NA	NA
2016	0.459	Estimated smolt survival term	Natural	2017-02-03	9/ Average weighted survival of acoustically tagged winter-run in 2013, 2014 and 2015 (2 values in 2015) between RBDD and 180 Tower Bridge in Sacramento - A. Ammann, NMFS, personal communication. Survival is estimated from the Sall Creek receiver site, located 3 miles downstream of RBDD, to estimate survival from RBDD for acoustic tag studies.	NA	NA	NA
2017	0.5129	Estimated smolt survival term	Natural	2018-01-08	7/ Average weighted survival of acoustically tagged winter-run in 2013, 2014, 2015 (2 values in 2015) and 2016 (2 values in 2016) and one value in 2017 between RBDD and 180 Tower Bridge in Sacramento - A. Ammann, NMFS, personal communication. Survival is estimated from the Salt Creek receiver site, located 3 miles downstream of RBDD, to estimate survival from RBDD for acoustic tag studies (See Appendix A, for further description of how the weighted average acoustic tag survival was used for methods 2, 2a,3 and 3a). This is the derivation of the numbers of fish arriving to Salt Ck (RBDD) and Sacramento (Tower, Sac180/50) from the acoustic tagged LSNFH winter run pre-smolts. The number of fish arriving to Salt Ck and Sac 180/50 are derived by looking at receivers at this location and all locations downstream. It uses fish directly detected at that site plus any fish that were missed at that site but detected at a site downstream. This was done for all years 2013-2017. The 2017 year was the only year that had significant flows over Fremont Weir. Fish that went over the weir and into the Yolo Bypass would bypass the Sacramento 180/50 Bridge and other nearby receiver locations. If these fish were detected at locations downstream of Liberty Island they were considered to have survived to the Delta and thus added to the number of the fish counted at Sacramento 180/50 Bridge.	NA	NA	NA
2018	0.5028	Estimated smolt survival term	Natural	2019-02-01	8/ Average weighted survival of acoustically tagged winter-run in 2013,2014,2015 (2 values), 2016 (2 values), 2017, and 2018 between RBDD and 180 Tower Bridge in Sacramento. Survival is estimated from the Salt Creek receiver site, located 3 miles downstream of RBDD, to estimate survival from RBDD for acoustic tag studies (M. O'Farrell, NMFS, personal communication)	NA	NA	NA
2019	0.4762	Estimated smolt survival term	Natural	2020-01-23	8/ Variance-weighted mean survival rate of acoustically tagged winter-run from 2013 to 2019 between RBDD and I-80/Tower Bridge in Sacramento. Survival is estimated from the Salt Creek receiver site, located 3 miles downstream of RBDD, to estimate survival from RBDD for acoustic tag studies. See Smolt Survival section for an explanation of the different values displayed here.	Southwest Fisheries Science Center, NMFS, NOAA; and University of California Santa Cruz.	NA	NA
2020	0.3304	Estimated smolt survival term	Natural	2021-01-15	8/ Variance-weighted mean survival rate of acoustically tagged hatchery winter-run from 2013 to 2020 between RBDD and I-80/Tower Bridge in Sacramento. Survival is estimated from the Salt Creek receiver site, located 3 miles downstream of RBDD, to estimate survival from RBDD for natural-origin smolts.	Method 2 (O’Farrell et al 2018) with data from USFWS, UC Santa Cruz, and SWFSC	NA	NA
2021	0.3537	Estimated smolt survival term	Natural	2022-01-14	8/ Variance-weighted mean survival rate of acoustically tagged hatchery winter-run Chinook Salmon from 2013 to 2021 between RBDD and I-80/Tower Bridge in Sacramento (based on O’Farrell et al. 2018). Survival is estimated from the Salt Creek receiver site, located 3 miles downstream of RBDD, to estimate survival from RBDD for natural-origin smolts.	Method 2 (O’Farrell et al 2018) with data from USFWS, UC Santa Cruz, and SWFSC	NA	NA
2022	0.3245	Estimated smolt survival term	Natural	2023-01-13	8/ Variance-weighted mean survival rate of acoustically tagged hatchery winter-run Chinook Salmon from 2013 to 2022 between RBDD and I-80/Tower Bridge in Sacramento (based on O’Farrell et al. 2018). Survival is estimated from the Salt Creek receiver site, located 3 miles downstream of RBDD, to estimate survival from RBDD for natural-origin smolts.	Method 2 (O’Farrell et al 2018) with data from USFWS, UC Santa Cruz, and SWFSC	NA	NA
2023	0.318	Estimated smolt survival term	Natural	2024-01-12	8/ Variance-weighted mean survival rate of acoustically tagged hatchery winter-run Chinook Salmon from 2013 to 2023 between RBDD and at or below I-80/Tower Bridge in Sacramento (based on O’Farrell et al. 2018). Survival is estimated from the Salt Creek receiver site, located 3 miles downstream of RBDD, to estimate survival from RBDD for natural-origin smolts.	Method 2 (O'Farrell et al 2018) with data from USFWS, UC Santa Cruz, and SWFSC	NA	NA