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Adult Upper Columbia River Chinook Spring 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.


Arithmetic mean travel times by reach and year
Reach 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
BON-MCN 8.79 10.42 5.35 6.18 6.76 5.72 7.10 6.34 6.21 8.82 7.06 6.81 6.30 5.09 6.24 7.29
BON-PRD   16.96 10.57 10.83 10.87 12.64 12.54 10.53 10.98 15.07 13.06 12.89 11.50 8.93 10.47 12.63
BON-WEL 26.33 38.71 23.87 21.20 21.16 25.62 23.13 18.39 18.66 22.87 19.37 20.07 19.73 16.41 19.41 19.94
BON-RIA   20.28 18.04 14.31 15.07 18.48 15.73 13.74 14.69 19.00 16.41 16.36 16.12 12.09 13.80 16.34
BON-RRH         16.03 21.08 16.99 14.45 15.59 20.00 17.03 17.07 17.21 13.36 15.56 16.95
BON-TDA                       2.20 2.10 1.65 1.98 2.93
TDA-MCN                       4.77 4.20 3.48 4.34 4.32
TDA-PRD                       10.88 9.40 7.31 8.64 9.79
TDA-WEL                       18.44 17.62 14.70 17.55 17.12
TDA-RIA                       14.42 13.97 10.44 12.04 13.43
TDA-RRH                       15.23 15.10 11.72 13.69 14.11
MCN-PRD   6.92 5.09 4.70 4.00 6.77 5.22 4.15 4.75 6.11 5.81 6.00 5.06 3.76 4.35 5.40
MCN-WEL 18.01 28.63 18.14 15.09 14.84 19.63 16.42 12.71 12.95 14.69 12.78 14.34 13.56 11.37 13.47 12.84
MCN-RIA   12.15 12.23 8.24 8.17 12.56 8.37 7.22 8.47 10.11 9.27 9.76 9.66 6.94 7.74 8.91
MCN-RRH         9.56 14.99 10.53 9.00 10.06 12.02 10.22 11.10 10.99 8.38 9.55 9.89
PRD-WEL   17.69 12.03 10.05 10.87 13.33 11.21 8.23 8.91 8.14 8.12 8.71 8.43 7.63 9.17 7.50
PRD-RIA   5.40 5.23 3.48 4.12 5.42 3.18 3.11 4.02 4.01 3.75 3.97 4.61 3.18 3.38 3.36
PRD-RRH         5.46 7.55 5.00 4.63 5.75 5.43 5.65 5.38 5.85 4.64 5.05 4.57
RIA-RRH         1.31 1.94 1.54 1.17 1.69 1.48 1.58 1.27 1.26 1.46 1.37 1.25
WEL-RIA   -10.13 -7.77 -6.30 -7.04 -6.42 -7.18 -5.66 -5.10 -5.11 -5.50 -4.87 -4.59 -5.17 -6.28 -4.63
WEL-RRH         -5.86 -4.33 -5.65 -3.68 -3.44 -3.45 -3.87 -3.60 -3.19 -3.63 -4.75 -3.42
Standard errors by reach and year
Reach 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
BON-MCN 0.84 1.30 0.09 0.20 0.41 0.33 0.36 0.28 0.16 0.24 0.15 0.26 0.11 0.10 0.21 0.26
BON-PRD   1.54 0.48 0.28 0.44 1.44 0.44 0.34 0.22 0.26 0.25 0.34 0.16 0.11 0.30 0.36
BON-WEL 2.01 4.28 1.21 0.60 1.11 4.03 2.69 1.11 0.91 0.41 0.51 0.55 0.31 0.30 0.85 0.67
BON-RIA   1.72 1.72 0.35 0.56 2.39 0.56 0.41 0.27 0.36 0.31 0.33 0.27 0.15 0.44 0.57
BON-RRH         0.45 2.62 0.86 0.79 0.44 0.37 0.42 0.38 0.25 0.17 0.54 0.52
BON-TDA                       0.06 0.04 0.04 0.06 0.15
TDA-MCN                       0.23 0.10 0.09 0.18 0.15
TDA-PRD                       0.32 0.15 0.10 0.29 0.29
TDA-WEL                       0.61 0.29 0.28 0.83 0.59
TDA-RIA                       0.32 0.25 0.13 0.42 0.48
TDA-RRH                       0.37 0.24 0.15 0.51 0.41
MCN-PRD   0.67 0.39 0.11 0.08 1.11 0.31 0.13 0.11 0.13 0.17 0.18 0.09 0.05 0.21 0.25
MCN-WEL 1.56 3.62 1.11 0.50 1.01 3.83 2.51 0.95 0.60 0.30 0.42 0.53 0.26 0.26 0.77 0.58
MCN-RIA   1.18 1.51 0.19 0.29 2.24 0.45 0.21 0.18 0.23 0.22 0.24 0.22 0.10 0.35 0.44
MCN-RRH         0.32 2.40 0.80 0.64 0.33 0.27 0.27 0.28 0.20 0.13 0.43 0.36
PRD-WEL   2.62 0.85 0.50 1.00 2.67 2.30 0.85 0.50 0.22 0.36 0.50 0.24 0.25 0.73 0.50
PRD-RIA   0.56 0.41 0.14 0.26 1.34 0.23 0.12 0.15 0.12 0.19 0.19 0.20 0.09 0.23 0.19
PRD-RRH         0.29 1.58 0.49 0.51 0.28 0.15 0.34 0.25 0.18 0.12 0.30 0.22
RIA-RRH         0.06 0.38 0.25 0.10 0.13 0.06 0.11 0.05 0.04 0.08 0.11 0.07
WEL-RIA   1.80 1.00 0.49 1.10 1.07 2.86 0.90 0.38 0.38 0.44 0.39 0.17 0.27 0.66 0.65
WEL-RRH         1.18 0.68 2.87 0.52 0.30 0.27 0.39 0.36 0.14 0.21 0.57 0.48
Counts by reach and year
Reach 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
BON-MCN 36 27 123 120 104 18 56 121 319 542 402 277 412 362 213 162
BON-PRD 0 23 97 112 102 17 54 115 302 533 312 263 404 340 197 154
BON-WEL 25 23 116 115 86 8 14 25 55 253 160 130 261 239 97 75
BON-RIA 0 14 47 101 87 13 48 99 277 413 349 243 265 275 155 93
BON-RRH 0 0 0 0 80 14 17 27 108 289 194 153 314 264 121 81
BON-TDA 0 0 0 0 0 0 0 0 0 0 0 348 445 402 260 196
TDA-MCN 0 0 0 0 0 0 0 0 0 0 0 282 414 372 215 166
TDA-PRD 0 0 0 0 0 0 0 0 0 0 0 268 406 348 200 158
TDA-WEL 0 0 0 0 0 0 0 0 0 0 0 133 263 247 99 79
TDA-RIA 0 0 0 0 0 0 0 0 0 0 0 247 266 284 157 94
TDA-RRH 0 0 0 0 0 0 0 0 0 0 0 156 316 273 124 85
MCN-PRD 0 24 107 115 103 17 53 114 303 530 313 265 402 348 200 157
MCN-WEL 27 23 126 118 86 8 14 26 55 250 160 133 261 247 99 79
MCN-RIA 0 14 51 103 87 13 47 98 278 414 350 244 264 284 157 94
MCN-RRH 0 0 0 0 80 14 17 28 108 286 193 156 314 273 124 85
PRD-WEL 0 33 144 111 86 10 14 27 71 258 119 139 266 237 99 80
PRD-RIA 0 27 88 99 87 19 49 106 315 430 301 257 271 284 158 95
PRD-RRH 0 0 0 0 80 17 17 29 128 296 155 165 320 262 124 86
RIA-RRH 0 0 0 0 77 15 17 29 126 229 199 155 230 219 96 51
WEL-RIA 0 32 98 101 75 10 11 22 60 185 157 130 195 201 75 47
WEL-RRH 0 0 0 0 69 10 11 23 62 253 166 140 272 262 99 80

Last Update: Sun Oct 22 18:59:02 2017

Data Courtesy of Pacific States Marine Fisheries Commission

The Upper Columbia River Spring Chinook ESU includes naturally spawned spring-run Chinook salmon originating from Columbia River tributaries upstream of the Rock Island Dam and downstream of Chief Joseph Dam (excluding the Okanogan River subbasin). Also, spring-run Chinook salmon from six artificial propagation programs: Twisp River Program, Chewuch River Program, Methow Program, Winthrop National Fish Hatchery Program, Chiwawa River Program, and White River Program. Definition implemented by Columbia River DART: March 2010.