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Adult Snake River Sockeye ESU Historical and Current Year Mean Travel Time Estimates

Click on a reach travel time in the table to view a plot of the reach-specific daily mean travel time as it varies throughout the season. The date of the daily mean travel time is determined by and plotted on the reach entry date, i.e., the date of the last detection for each PIT-tagged fish at the first project in the reach. The plots include a 95% confidence interval for each reach entry date on which more than one fish started traversing the reach.


Harmonic mean travel times by reach and year
Reach 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
BON-MCN 4.96     4.47 4.42 4.94 5.60 5.05 5.98 5.86 5.58 5.32 6.11 4.94 5.09 3.95 3.63 5.42 5.15 5.93
BON-IHR 6.57     5.95 5.88 7.04 7.58 7.08 7.87 7.85 7.23 6.94 7.74 6.91 6.75 5.87 5.53 7.15 6.73 7.76
BON-LGR 10.79 10.02   10.90 9.52 11.69 13.05 11.25 12.87 12.63 13.95 11.97 17.67 11.91 11.36 9.88 9.29 11.68 13.09 12.84
BON-TDA                     1.86 1.81 1.95 1.60 1.65 1.29 1.01 1.76 1.46 1.86
BON-JDA                               2.06 2.06 2.88 2.32 3.07
BON-LMN                       8.46 9.95 8.50 8.28 7.18 6.52 8.52 8.71 9.48
BON-LGS                       9.86 12.30 10.10 9.73 8.19 7.95 9.83 10.46 10.86
TDA-MCN                     3.75 3.47 4.33 3.25 3.36 2.65 2.66 3.64 3.71 3.93
TDA-IHR                     5.44 5.15 6.15 5.19 5.05 4.53 4.52 5.38 5.26 5.77
TDA-LGR                     12.08 10.05 16.05 10.15 9.62 8.53 8.27 9.91 11.46 10.87
TDA-JDA                               0.77 1.04 1.08 0.89 1.13
TDA-LMN                       6.63 8.38 6.76 6.53 5.83 5.51 6.75 7.19 7.50
TDA-LGS                       8.01 10.86 8.33 7.96 6.84 6.93 8.06 8.89 8.90
JDA-MCN                               1.83 1.67 2.46 2.65 2.56
JDA-IHR                               3.62 3.21 4.21 4.18 4.41
JDA-LMN                               4.92 4.22 5.58 6.14 6.10
JDA-LGS                               5.92 5.67 6.91 7.88 7.48
JDA-LGR                               7.60 7.01 8.76 10.47 9.44
MCN-IHR 1.61 1.92   1.48 1.46 1.39 1.75 1.82 1.75 1.88 1.69 1.59 2.01 1.73 1.59 1.35 1.65 1.57 1.54 1.67
MCN-LGR 5.83 5.41   6.43 5.10 6.29 7.02 5.97 6.65 6.60 8.00 6.43 11.65 6.68 6.21 4.92 4.89 6.18 7.79 6.67
MCN-LMN                       3.00 4.32 3.29 3.00 2.51 2.50 2.97 3.40 3.33
MCN-LGS                       4.41 6.69 4.86 4.48 3.38 3.64 4.28 5.14 4.71
IHR-LGR 4.22 3.49   4.95 3.64 4.65 4.95 3.97 4.68 4.42 5.83 4.53 9.17 4.61 4.29 3.74 3.72 4.52 5.96 4.60
IHR-LMN                       1.20 2.10 1.29 1.19 1.13 0.97 1.35 1.47 1.41
IHR-LGS                       2.55 4.56 2.79 2.58 2.12 2.36 2.66 3.28 2.74
LMN-LGS                       1.18 1.69 1.28 1.23 0.92 1.40 1.22 1.61 1.19
LMN-LGR                       3.13 6.11 3.06 2.95 2.52 2.75 3.03 4.04 3.04
LGS-LGR                       1.79 3.89 1.63 1.51 1.59 1.34 1.59 2.25 1.70
Standard errors by reach and year
Reach 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
BON-MCN NA     NA NA 0.24 0.36 0.17 0.07 0.22 0.14 0.10 0.23 0.12 0.16 0.21 NA 0.53 0.18 0.13
BON-IHR NA     NA NA 0.72 0.36 0.26 0.08 0.20 0.15 0.11 0.30 0.15 0.21 0.68 0.25 0.54 0.25 0.19
BON-LGR NA NA   NA NA 0.95 0.94 0.39 0.13 0.38 0.50 0.21 1.51 0.28 0.34 1.15 0.83 0.92 1.08 0.26
BON-TDA                     0.07 0.05 0.06 0.06 0.07 0.05 0.04 0.10 0.08 0.05
BON-JDA                               0.10 0.11 0.28 0.08 0.07
BON-LMN                       0.14 0.39 0.20 0.27 0.81 0.41 0.64 0.53 0.21
BON-LGS                       0.15 0.57 0.24 0.34 0.97 0.73 0.76 0.66 0.22
TDA-MCN                     0.11 0.06 0.17 0.08 0.12 0.21 NA 0.43 0.16 0.09
TDA-IHR                     0.12 0.08 0.23 0.12 0.18 0.64 0.21 0.45 0.23 0.15
TDA-LGR                     0.48 0.18 1.41 0.25 0.30 1.11 0.79 0.82 1.00 0.23
TDA-JDA                               0.05 0.07 0.16 0.04 0.03
TDA-LMN                       0.11 0.33 0.17 0.23 0.77 0.36 0.55 0.50 0.18
TDA-LGS                       0.13 0.54 0.21 0.30 0.92 0.68 0.67 0.61 0.19
JDA-MCN                               0.18 NA 0.29 0.12 0.05
JDA-IHR                               0.54 0.12 0.33 0.20 0.11
JDA-LMN                               0.67 0.04 0.44 0.45 0.13
JDA-LGS                               0.83 0.36 0.54 0.58 0.15
JDA-LGR                               1.04 0.46 0.68 1.01 0.19
MCN-IHR NA NA   NA NA 0.10 0.11 0.10 0.02 0.07 0.05 0.03 0.11 0.06 0.06 0.16 NA 0.15 0.10 0.05
MCN-LGR NA NA   NA NA 0.64 0.63 0.24 0.09 0.27 0.40 0.13 1.15 0.19 0.21 0.50 NA 0.41 0.85 0.15
MCN-LMN                       0.06 0.24 0.10 0.12 0.21 NA 0.22 0.34 0.09
MCN-LGS                       0.08 0.41 0.14 0.20 0.28 NA 0.33 0.48 0.11
IHR-LGR NA NA   NA NA 0.55 0.50 0.18 0.07 0.21 0.34 0.11 1.01 0.14 0.17 0.58 0.58 0.40 0.70 0.11
IHR-LMN                       0.03 0.15 0.05 0.05 0.18 0.16 0.13 0.18 0.05
IHR-LGS                       0.06 0.38 0.08 0.13 0.34 0.47 0.23 0.34 0.07
LMN-LGS                       0.03 0.13 0.04 0.07 0.10 0.31 0.07 0.16 0.03
LMN-LGR                       0.08 0.73 0.09 0.12 0.34 0.42 0.30 0.55 0.08
LGS-LGR                       0.05 0.55 0.06 0.06 0.23 0.10 0.26 0.30 0.05
Counts by reach and year
Reach 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
BON-MCN 1 0 0 1 1 10 16 34 340 69 138 210 98 132 44 5 1 5 30 125
BON-IHR 1 0 0 1 1 10 17 30 314 66 120 200 60 126 42 5 2 5 25 96
BON-LGR 1 1 0 1 1 10 17 31 328 63 91 196 27 124 40 5 2 5 15 100
BON-TDA 0 0 0 0 0 0 0 0 0 0 169 286 422 157 56 7 2 5 42 138
BON-JDA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 2 5 34 128
BON-LMN 0 0 0 0 0 0 0 0 0 0 0 210 50 126 44 5 2 5 18 100
BON-LGS 0 0 0 0 0 0 0 0 0 0 0 202 32 125 41 5 2 5 18 101
TDA-MCN 0 0 0 0 0 0 0 0 0 0 137 211 100 130 46 5 1 5 31 126
TDA-IHR 0 0 0 0 0 0 0 0 0 0 119 201 60 124 44 5 2 5 25 96
TDA-LGR 0 0 0 0 0 0 0 0 0 0 90 196 27 123 42 5 2 5 15 100
TDA-JDA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 2 5 35 128
TDA-LMN 0 0 0 0 0 0 0 0 0 0 0 210 50 124 46 5 2 5 18 100
TDA-LGS 0 0 0 0 0 0 0 0 0 0 0 202 32 124 43 5 2 5 18 101
JDA-MCN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 1 5 28 119
JDA-IHR 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 2 5 22 94
JDA-LMN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 2 5 17 98
JDA-LGS 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 2 5 17 99
JDA-LGR 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 2 5 14 98
MCN-IHR 1 1 0 1 1 9 16 30 308 65 119 196 58 125 43 4 1 5 25 94
MCN-LGR 1 1 0 1 1 10 16 31 322 62 89 192 27 122 41 4 1 5 15 98
MCN-LMN 0 0 0 0 0 0 0 0 0 0 0 204 48 125 45 4 1 5 18 98
MCN-LGS 0 0 0 0 0 0 0 0 0 0 0 196 31 124 42 4 1 5 18 99
IHR-LGR 1 1 0 1 1 9 17 28 298 61 86 190 26 119 40 5 2 5 15 94
IHR-LMN 0 0 0 0 0 0 0 0 0 0 0 202 46 122 44 5 2 5 18 94
IHR-LGS 0 0 0 0 0 0 0 0 0 0 0 196 31 121 41 5 2 5 18 95
LMN-LGS 0 0 0 0 0 0 0 0 0 0 0 205 32 123 43 5 2 5 17 101
LMN-LGR 0 0 0 0 0 0 0 0 0 0 0 199 27 121 42 5 2 5 14 100
LGS-LGR 0 0 0 0 0 0 0 0 0 0 0 198 26 123 41 5 2 5 15 102

Last Update: Thu Sep 29 18:59:01 2022

Data Courtesy of Pacific States Marine Fisheries Commission

The Snake River Sockeye ESU includes naturally spawned anadromous and residual sockeye salmon originating from the Snake River Basin, and also sockeye salmon from one artificial propagation program: Redfish Lake Captive Broodstock Program. Definition implemented by Columbia River DART: March 2010.