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Alaska Department of Fish and Game


Kenai Chinook Estimates, Indices and Inseason Run Summaries

Location: Kenai River (Chinook)
Species: Chinook - Late Run
Method: Sonar

The selected years are color-coded in the graphs below:

  • 2016
  • 2015
  • 2014
  • 2013
Daily Counts
Cumulative

Description: Description: In 2015 the department began managing Kenai king salmon runs using the ARIS sonar located at river mile 14, instead of the DIDSON sonar that had been located at river mile 8.6. The ARIS sonar estimates will be updated twice weekly. The daily estimates represent king salmon of all age and size classes. This ARIS sonar estimate is used to measure abundance relative to the optimum escapement goal of 5,300-9,000 early-run king salmon and the sustainable escapement goal of 15,000-30,000 late-run king salmon. To view daily estimates of king salmon passage go to the Abundance Indices tab, which is updated as data becomes available. The inseason run summary tab will provide information about king salmon passage at the mile 14 ARIS sonar site external link, netting project, creel survey, water conditions and management actions twice each week. Information about the status of the run and inseason management actions are also available by telephone at (907) 262-9097.

*8/2/2016 NOTE: Daily sonar estimates of the number of king salmon for July 7-26 have been revised due to a programming error discovered July 28th. For more information please refer to the 2016 Kenai River late-run king salmon revised sonar estimates memo. There is no change to the threshold estimates of fish larger than 34 inches.

Contact: Area Management Biologist,
(907) 262-9368

Weekly Sportfish Fishing Report for this area

51 records returned for the years selected. Dashes indicate days with no count.
[Export results in Excel format]

Date
2016
Count
2016
Cumulative
2016
Cumulative
2015
Cumulative
2014
Cumulative
2013
Notes for
2016
Aug-20 - 22,535 23,705 16,871 19,373  
Aug-19 213 22,535 23,542 16,871 19,373 Last day of Sonar Counts
Aug-18 179 22,322 23,405 16,871 19,373  
Aug-17 83 22,143 23,106 16,871 19,373  
Aug-16 327 22,060 22,834 16,871 19,149  
Aug-15 187 21,733 22,688 16,871 18,938  
Aug-14 300 21,546 22,452 16,677 18,667  
Aug-13 394 21,246 22,170 16,425 18,317  
Aug-12 365 20,852 21,785 16,294 17,991  
Aug-11 109 20,487 21,614 16,103 17,793  
Aug-10 384 20,378 21,424 15,868 17,517  
Aug-09 299 19,994 20,885 15,539 17,140  
Aug-08 327 19,695 20,435 15,009 16,694  
Aug-07 406 19,368 19,942 14,761 16,139  
Aug-06 308 18,962 19,496 14,522 15,868  
Aug-05 458 18,654 18,758 13,916 15,479  
Aug-04 468 18,196 18,135 13,265 14,996  
Aug-03 327 17,728 17,622 12,781 14,508  
Aug-02 186 17,401 17,179 12,188 13,862  
Aug-01 305 17,215 16,812 11,746 13,250  
Jul-31 250 16,910 16,622 11,227 12,646  
Jul-30 493 16,660 16,353 10,451 11,993  
Jul-29 589 16,167 15,934 9,819 11,412  
Jul-28 634 15,578 15,521 9,350 10,830  
Jul-27 612 14,944 15,082 8,920 10,359  
Jul-26 410 14,332 14,617 8,547 9,910 Revised Estimate
Jul-25 548 13,922 13,984 8,160 9,119 Revised Estimate
Jul-24 544 13,374 13,230 7,712 8,642 Revised Estimate
Jul-23 532 12,830 12,021 7,495 8,388 Revised Estimate
Jul-22 637 12,298 11,079 7,128 7,888 Revised Estimate
Jul-21 429 11,661 10,289 6,847 7,618 Revised Estimate
Jul-20 357 11,232 9,722 6,323 7,407 Revised Estimate
Jul-19 527 10,875 9,284 5,797 6,889 Revised Estimate
Jul-18 591 10,348 8,795 5,430 6,421 Revised Estimate
Jul-17 471 9,757 7,967 4,867 5,659 Revised Estimate
Jul-16 300 9,286 6,949 4,448 5,073 Revised Estimate
Jul-15 531 8,986 6,449 4,225 4,183 Revised Estimate
Jul-14 784 8,455 5,936 3,727 3,489 Revised Estimate
Jul-13 788 7,671 5,438 3,434 2,893 Revised Estimate
Jul-12 1,111 6,883 4,945 3,010 2,536 Revised Estimate
Jul-11 902 5,772 4,195 2,525 2,316 Revised Estimate
Jul-10 758 4,870 3,540 2,202 1,881 Revised Estimate
Jul-09 497 4,112 2,875 2,077 1,555 Revised Estimate
Jul-08 463 3,615 2,383 1,922 1,219 Revised Estimate
Jul-07 328 3,152 2,008 1,689 1,110 Revised Estimate
Jul-06 384 2,824 1,674 1,232 978  
Jul-05 517 2,440 1,449 767 760  
Jul-04 364 1,923 1,091 439 599  
Jul-03 377 1,559 803 286 398  
Jul-02 709 1,182 538 273 263  
Jul-01 473 473 186 170 169  

Sonar Tools

Late Run ARIS Threshold (>34 in. total) Sonar Estimate

The ARIS threshold estimate is an estimate for fish targets that are measured to be 34 inches or greater in total length. These estimates are a daily index of the relative abundance of Chinook salmon passage past the mile 14 ARIS sonar site.

Show ARIS Threshold Data Table ↓

Date 2016 2015 2014 2013
Jun-20 - - - -
Jun-21 - - - -
Jun-22 - - - -
Jun-23 - - - -
Jun-24 - - - -
Jun-25 - - - -
Jun-26 - - - -
Jun-27 - - - -
Jun-28 - - - -
Jun-29 - - - -
Jun-30 - - - -
Jul-01 264 79 36 127
Jul-02 638 230 66 187
Jul-03 867 321 78 247
Jul-04 1,066 498 138 359
Jul-05 1,403 669 229 438
Jul-06 1,609 790 405 517
Jul-07 1,817 966 587 574
Jul-08 2,094 1,227 678 660
Jul-09 2,347 1,533 738 846
Jul-10 2,803 1,887 786 1,034
Jul-11 3,400 2,141 871 1,246
Jul-12 4,178 2,455 1,027 1,368
Jul-13 4,751 2,739 1,166 1,573
Jul-14 5,329 3,041 1,281 1,881
Jul-15 5,727 3,349 1,503 2,202
Jul-16 5,967 3,651 1,618 2,681
Jul-17 6,330 4,128 1,835 2,989
Jul-18 6,824 4,653 2,149 3,415
Jul-19 7,207 5,033 2,371 3,712
Jul-20 7,505 5,353 2,689 4,027
Jul-21 7,843 5,836 3,006 4,148
Jul-22 8,350 6,483 3,188 4,299
Jul-23 8,785 7,305 3,443 4,542
Jul-24 9,226 8,331 3,570 4,687
Jul-25 9,669 8,935 3,890 4,955
Jul-26 10,028 9,484 4,196 5,294
Jul-27 10,580 9,876 4,471 5,548
Jul-28 11,121 10,251 4,791 5,856
Jul-29 11,605 10,584 5,141 6,255
Jul-30 12,036 10,922 5,582 6,684
Jul-31 12,266 11,161 6,119 7,155
Aug-01 12,551 11,324 6,455 7,630
Aug-02 12,729 11,626 6,769 8,126
Aug-03 13,051 12,018 7,208 8,639
Aug-04 13,468 12,470 7,576 9,033
Aug-05 13,860 13,062 8,152 9,451
Aug-06 14,126 13,768 8,726 9,763
Aug-07 14,485 14,197 8,943 9,994
Aug-08 14,762 14,680 9,172 10,477
Aug-09 15,027 15,103 9,679 10,819
Aug-10 15,401 15,623 9,987 11,132
Aug-11 15,503 15,804 10,192 11,359
Aug-12 15,847 15,972 10,378 11,526
Aug-13 16,227 16,323 10,484 11,768
Aug-14 16,517 16,595 10,708 12,065
Aug-15 16,698 16,807 10,871 12,286
Aug-16 17,012 16,945 10,871 12,456
Aug-17 17,091 17,175 10,871 12,656

Non-Sonar Tools

Late Run Netting Project CPUE Index

The Net Catch Per Unit Effort (CPUE) is an index of the numbers of Chinook salmon moving into the Kenai River and is based on the rate at which Chinook salmon are captured by the netting project conducted river mile 8.6.


Late Run Sport CPUE Index

The Sport Catch Per Unit Effort (CPUE) is an index of the numbers of Chinook salmon in the lower Kenai River and is based on the success rate of anglers fishing downstream of the Sterling Highway Bridge Crossing in Soldotna.

Late Run Eastside Setnet CPUE Index

The Eastside Setnet Catch per Unit Effort (CPUE) is an index of the total number of late-run Kenai River Chinook salmon.

Weekly Sportfish Fishing Report for this area


Late Run Kenai River Chinook Inseason Summary for Fri. Aug 19

Chinook Salmon Run Update: 

On August 18, the daily estimated passage was 179 Chinook salmon for a season total of 22,322 Chinook salmon. Through August 19, using 3 years of sonar estimates at river mile 13.7, approximately 99% of the run is estimated to have passed the sonar.

The Kenai River king salmon sonar will be operated from July 1 to August 20 or until less than 1% of the cumulative passage is estimated for 3 consecutive days.

The final Kenai River Chinook salmon late-run summary will be posted later this month.

Fishery Update:

The sport fishery for Kenai River Chinook salmon ended Sunday July 31.
The preliminary estimate for inriver harvest downstream of the Soldotna Bridge was 6,504 fish.

Water Conditions:

Water clarity: Good; last visibility reading 0.84 meters at the river mile 8.6 netting program station.

Water flow/current: 17,800 ft3/sec today vs. 50 yr median (13,900 ft3/ sec). Water level is higher than the average of 14,700 ft3/ sec for this time of year.

Water temperature: August 18, 55.0°F at the river mile 14 Chinook salmon sonar station.

Summary of cumulative raw information collected thru Aug 18 (by year) that is used to assess Kenai River Chinook run strength.
Year Number Chinook Captured in Test Net at river mile 8.6 Number Sockeye Captured in Test Net at river mile 8.6 Chinook Sport Harvest Below Soldotna Estimated by Creel Survey Cumulative ARIS Sonar Estimate Commercial Set Net Harvest
2002 1,171 1,915 11,482 ND 9,478
2003 1,446 1,464 13,837 ND 14,810
2004 1,077 749 14,494 ND 21,616
2005 1,027 730 15,312 ND 20,968
2006 1,330 566 13,190 ND 8,691
2007 780 2,107 9,258 ND 12,128
2008 895 1,435 9,272 ND 6,409
2009 559 1,798 7,378 ND 5,588
2010 311 3,454 5,375 ND 7,038
2011 472 3,548 6,458 ND 7,697
2012 345 3,685 102 ND 667
2013 200 2,072 1,577 19,373 2,630
2014 187 4,201 539 16,871 1,676
2015 239 1,103 3,896 23,406 7,306
2016 218 1,205 6,504 22,322 6,413

NOTE: N/A means that there is no fishery for that date, and an asterisk (*) means that there is no data for that date.