Unclipped Steelhead Cohort Juvenile Migration Timing and Conditions Graph and Table

Migration Timing Characteristics
Juvenile Unclipped Steelhead at Knights Landing RST, 1/1 - 12/31
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	01/08/2022								01/08/2022				1 (YTD)		Graph w/Table
Average (2007 - 2021)	01/28	01/29	02/12	03/07	04/09	04/25	05/14	05/17	05/21	92	51	109	11	94.0%
Average 95% CI	01/20-02/04	01/20-02/06	01/24-03/02	01/24-04/17	02/23-05/23	03/13-06/06	04/03-06/23	04/06-06/26	04/10-06/30				5-17	81.2-106.9%
Median (2007 - 2021)	01/27	01/27	02/10	02/14	03/16	04/14	05/05	05/11	05/19	94	55	105	9	100%
Median 95% CI	01/17-02/13	01/17-02/13	01/19-03/02	02/02-03/24	03/04-04/27	03/22-05/11	04/06-05/30	04/06-05/30	04/27-06/01				5-14	100-100%
2021	01/11/2021	01/11/2021	05/12/2021	10/29/2021	12/16/2021	12/19/2021	12/20/2021	12/27/2021	12/27/2021	223	52	351	12	16.7%	Graph w/Table
2020	01/27/2020	01/27/2020	01/27/2020	01/27/2020	04/23/2020	04/24/2020	04/30/2020	04/30/2020	04/30/2020	95	89	95	5	100.0%	Graph w/Table
2019	01/14/2019	01/14/2019	01/14/2019	02/11/2019	04/10/2019	04/13/2019	05/30/2019	05/30/2019	05/30/2019	137	62	137	8	100.0%	Graph w/Table
2018	01/12/2018	01/12/2018	01/12/2018	01/12/2018	04/27/2018	04/27/2018	04/27/2018	04/27/2018	04/27/2018	106	106	106	3	100.0%	Graph w/Table
2017	02/10/2017	02/10/2017	02/10/2017	03/24/2017	04/28/2017	05/10/2017	05/10/2017	05/19/2017	05/19/2017	90	48	99	10	100.0%	Graph w/Table
2016	01/17/2016	01/17/2016	01/17/2016	01/29/2016	03/10/2016	03/26/2016	03/29/2016	03/29/2016	03/29/2016	73	58	73	8	100.0%	Graph w/Table
2015	02/10/2015	02/10/2015	02/10/2015	02/11/2015	02/13/2015	02/15/2015	05/25/2015	05/25/2015	05/25/2015	105	5	105	6	100.0%	Graph w/Table
2014	02/13/2014	03/02/2014	03/02/2014	03/07/2014	03/12/2014	03/13/2014	04/01/2014	04/05/2014	06/02/2014	31	7	35	43	100.0%	Graph w/Table
2013													0
2012	01/27/2012	01/27/2012	03/18/2012	03/29/2012	04/01/2012	04/03/2012	04/05/2012	04/05/2012	04/05/2012	19	6	70	12	100.0%	Graph w/Table
2011	02/18/2011	02/18/2011	02/18/2011	02/18/2011	02/18/2011	02/18/2011	02/18/2011	02/18/2011	02/18/2011	1	1	1	1	100.0%	Graph w/Table
2010	01/19/2010	01/19/2010	01/27/2010	02/02/2010	03/04/2010	04/16/2010	04/28/2010	05/03/2010	05/03/2010	92	74	105	15	100.0%	Graph w/Table
2009	01/28/2009	01/28/2009	02/22/2009	02/27/2009	03/20/2009	03/22/2009	05/11/2009	05/20/2009	05/20/2009	79	24	113	14	100.0%	Graph w/Table
2008	01/19/2008	01/19/2008	01/19/2008	02/05/2008	03/03/2008	05/19/2008	05/22/2008	05/22/2008	05/22/2008	125	105	125	10	100.0%	Graph w/Table
2007	02/13/2007	02/13/2007	02/13/2007	02/25/2007	02/25/2007	05/11/2007	06/01/2007	06/01/2007	06/01/2007	109	76	109	5	100.0%	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 CDFW via StreamNet and CDEC
3. 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.