Unclipped LateFall Chinook Cohort Juvenile Migration Timing and Conditions Graph and Table

Migration Timing Characteristics
Juvenile Unclipped LateFall Chinook at Red Bluff Diversion Dam, 4/1 - 3/31
Brood Year 2007 - 2021

Brood Year	Sampling Dates (MM/DD/YYYY)									Duration Middle 80% Days	Duration Middle 50% Days	Duration Middle 90% Days	Run Size	"Today" (08/09) %	View Data (opens new window)
	First	5%	10%	25%	50%	75%	90%	95%	Last
Brood Year	First	5%	10%	25%	50%	75%	90%	95%	Last	Duration Middle 80% Days	Duration Middle 50% Days	Duration Middle 90% Days	Run Size	"Today" (08/09) %	View Data (opens new window)
	Sampling Dates (MM/DD/YYYY)
2022 1 YTD	04/09/2022								07/24/2022				1,697 (YTD)		Graph w/Table
Average (2007 - 2021)	04/10	05/05	05/30	07/21	09/19	10/31	11/23	12/13	01/31	178	103	223	107,159	35.8%
Average 95% CI	03/27-04/23	04/10-05/29	04/26-07/02	06/10-08/30	08/19-10/19	10/10-11/20	11/06-12/09	11/29-12/26	01/18-02/12				48,388-165,930	23.0-48.6%
Median (2007 - 2021)	04/02	04/18	05/05	07/26	10/01	11/02	11/26	12/17	01/29	192	83	228	68,563	37%
Median 95% CI	04/02-04/07	04/07-06/07	04/15-07/14	04/22-10/09	08/07-11/16	10/16-12/10	11/16-12/16	11/30-12/31	01/11-03/01				54,823-125,303	17-54%
2021	04/07/2021	05/13/2021	07/08/2021	10/11/2021	11/04/2021	12/13/2021	12/15/2021	12/17/2021	01/29/2022	161	64	219	54,823	11.8%	Graph w/Table
2020	07/01/2020	07/09/2020	07/13/2020	08/05/2020	10/10/2020	11/01/2020	01/07/2021	01/08/2021	01/31/2021	179	89	184	33,512	26.9%	Graph w/Table
2019	04/02/2019	04/05/2019	04/15/2019	04/17/2019	09/14/2019	10/17/2019	11/13/2019	12/09/2019	01/08/2020	213	184	249	101,086	46.3%	Graph w/Table
2018	04/24/2018	09/12/2018	10/05/2018	10/08/2018	11/11/2018	12/01/2018	12/16/2018	12/31/2018	01/27/2019	73	55	111	41,190	2.0%	Graph w/Table
2017	04/01/2017	04/17/2017	04/28/2017	10/09/2017	11/16/2017	11/17/2017	11/18/2017	11/22/2017	02/05/2018	205	40	220	68,563	17.0%	Graph w/Table
2016	04/01/2016	04/08/2016	04/14/2016	08/25/2016	10/26/2016	11/01/2016	11/16/2016	11/29/2016	12/31/2016	217	69	236	58,108	18.5%	Graph w/Table
2015	04/02/2015	06/07/2015	09/25/2015	10/30/2015	11/22/2015	12/11/2015	12/15/2015	12/20/2015	02/02/2016	82	43	197	63,550	7.7%	Graph w/Table
2014	04/01/2014	04/02/2014	04/04/2014	05/18/2014	10/01/2014	11/13/2014	11/27/2014	12/10/2014	03/06/2015	238	180	253	67,690	45.4%	Graph w/Table
2013	04/02/2013	04/18/2013	06/13/2013	09/20/2013	11/18/2013	12/10/2013	12/21/2013	02/10/2014	03/01/2014	192	82	300	125,303	19.4%	Graph w/Table
2012	04/02/2012	04/03/2012	04/13/2012	04/13/2012	07/25/2012	11/19/2012	11/25/2012	12/17/2012	01/11/2013	227	221	259	109,433	52.9%	Graph w/Table
2011	04/06/2011	04/07/2011	04/07/2011	04/20/2011	05/19/2011	08/28/2011	11/26/2011	12/07/2011	01/27/2012	234	131	245	51,925	68.8%	Graph w/Table
2010	04/01/2010	04/15/2010	04/15/2010	04/22/2010	08/08/2010	10/26/2010	11/16/2010	11/28/2010	01/12/2011	216	188	228	117,201	50.1%	Graph w/Table
2009	04/02/2009	05/07/2009	05/19/2009	07/26/2009	09/08/2009	10/16/2009	10/24/2009	12/17/2009	03/10/2010	159	83	225	165,079	37.3%	Graph w/Table
2008	04/01/2008	04/23/2008	06/20/2008	07/22/2008	08/06/2008	10/14/2008	11/16/2008	12/19/2008	02/26/2009	150	85	241	81,845	53.5%	Graph w/Table
2007	04/03/2007	04/19/2007	05/05/2007	07/08/2007	07/21/2007	08/06/2007	09/05/2007	10/18/2007	01/10/2008	124	30	183	468,075	79.5%	Graph w/Table

Notes:

1. Brood Year 2022 is incomplete. Data presented in Migration Timing Characteristics table is data through today's date.
2. Data Courtesy of USFWS, Red Bluff
3. No sampling 3/25-6/30/2020.
4. Date Calculations:
   1. Query database for sampling/passage estimates for requested number of years, species, run, and location.
   2. Based on brood year assignment at Red Bluff, regroup calendar year based data into brood year based data for Chinook.
      • Winter, July-June
      • Spring, October-September
      • Fall, December-November
      • LateFall, April-March
   3. Based on query results, calculate total number of fish for each brood year (reported as "Run Size" in table).
   4. Based on query results, calculate cumulative number of fish by day in the year.
   5. Based on query results, calculate the Day of Year when fish passage % is equal to or greater than the target percent, e.g., 5% passage. Passage % for a day = cumulative number of fish for day / total fish in year.
   6. For each individual year target passage percent, first date, and last date results: convert Day of Year to Calendar Date for given year, taking into consideration leap year. Report calendar date in table.
   7. For each individual year middle run duration: 80% duration = 1 + (90% Day of Year - 10% Day of Year), 50% duration = 1 + (75% Day of Year - 25% Day of Year), 90% duration = 1 + (95% Day of Year - 5% Day of Year). Report days in table.
   8. For each target passage percent, first date, and last date: calculate average Day of Year for that passage target percent from each individual year Day of Year values. Convert result into integer. Treat integer as Day of Year and convert into Calendar Date for a non-leap year. Report as Average.
   9. For each target passage percent, first date, and last date: calculate median Day of Year for that passage target percent from individual Day of Year values. Convert median Day of Year into Calendar Date for a non-leap year. Report as Median.
   10. Individual year calendar date values reported in table honor leap year. Calculated calendar date values (Average and Median) treat results as non-leap year dates.