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:

  • 2017
  • 2016
  • 2015
  • 2014
  • 2013
Daily Counts
Cumulative

Description: In 2015 the department began managing Kenai River king salmon runs using an ARIS sonar station located at river mile 14. In 2017 The Department modified the Kenai River king salmon escapement goals from goals based on king salmon of all sizes, to escapement goals based on large king salmon (fish over 34 inches) only. The new early-run king salmon optimal escapement goal range is 3,900 to 6,600 large king salmon (> 34 inches). The new late-run king salmon sustainable escapement goal range is 13,500 to 27,000 large king salmon (> 34 inches). The ARIS sonar counts found on this page are the daily and seasonal cumulative passage estimates of the number of large king salmon passing the sonar site. Additionally, the past years counts displayed on this page have been converted to large fish counts for comparison. These estimated numbers of large king salmon passing the sonar site are the primary tool for the Kenai River king salmon assessment program that also includes a sport angler harvest survey, and a netting program. The data gathered in these assessments are used together to determine king salmon run strength. This data in conjunction with Fishery Management Plans, allows fishery managers to determine if emergency order regulation changes to the fisheries are needed during the season to help ensure that the escapement goals are achieved. These abundance assessments as well as information about the status of the run and inseason management actions can be viewed via this website on the above tabs. Information is also available by telephone at (907)262-9097.

Contact: Northern Kenai Sport Fish Area Manager,
(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
2017
Count
2017
Cumulative
2017
Cumulative
2016
Cumulative
2015
Cumulative
2014
Notes for
2017
Aug-20 289 22,133 17,447 17,687 10,871 Last Day of Counts
Aug-19 404 21,844 17,447 17,530 10,871  
Aug-18 343 21,440 17,254 17,410 10,871  
Aug-17 175 21,097 17,091 17,175 10,871  
Aug-16 235 20,922 17,012 16,945 10,871  
Aug-15 235 20,687 16,698 16,807 10,871  
Aug-14 180 20,452 16,517 16,595 10,708  
Aug-13 355 20,272 16,227 16,323 10,484  
Aug-12 283 19,917 15,847 15,972 10,378  
Aug-11 327 19,634 15,503 15,804 10,192  
Aug-10 205 19,307 15,401 15,623 9,987  
Aug-09 398 19,102 15,027 15,103 9,679  
Aug-08 592 18,704 14,762 14,680 9,172  
Aug-07 525 18,112 14,485 14,197 8,943  
Aug-06 667 17,587 14,126 13,768 8,726  
Aug-05 754 16,920 13,860 13,062 8,152  
Aug-04 737 16,166 13,468 12,470 7,576  
Aug-03 477 15,429 13,051 12,018 7,208  
Aug-02 602 14,952 12,729 11,626 6,769  
Aug-01 434 14,350 12,551 11,324 6,455  
Jul-31 923 13,916 12,266 11,161 6,119  
Jul-30 380 12,993 12,036 10,922 5,582  
Jul-29 543 12,613 11,605 10,584 5,141  
Jul-28 622 12,070 11,121 10,251 4,791  
Jul-27 398 11,448 10,580 9,876 4,471  
Jul-26 676 11,050 10,028 9,484 4,196  
Jul-25 561 10,374 9,669 8,935 3,890  
Jul-24 985 9,813 9,226 8,331 3,570  
Jul-23 389 8,828 8,785 7,305 3,443  
Jul-22 398 8,439 8,350 6,483 3,188  
Jul-21 485 8,041 7,843 5,836 3,006  
Jul-20 350 7,556 7,505 5,353 2,689  
Jul-19 500 7,206 7,207 5,033 2,371  
Jul-18 682 6,706 6,824 4,653 2,149  
Jul-17 639 6,024 6,330 4,128 1,835  
Jul-16 615 5,385 5,967 3,651 1,618  
Jul-15 440 4,770 5,727 3,349 1,503  
Jul-14 392 4,330 5,329 3,041 1,281  
Jul-13 398 3,938 4,751 2,739 1,166  
Jul-12 421 3,540 4,178 2,455 1,027  
Jul-11 404 3,119 3,400 2,141 871  
Jul-10 392 2,715 2,803 1,887 786  
Jul-09 471 2,323 2,347 1,533 738  
Jul-08 368 1,852 2,094 1,227 678  
Jul-07 290 1,484 1,817 966 587  
Jul-06 163 1,194 1,609 790 405  
Jul-05 211 1,031 1,403 669 229  
Jul-04 211 820 1,066 498 138  
Jul-03 172 609 867 321 78  
Jul-02 256 437 638 230 66  
Jul-01 181 181 264 79 36  

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 at 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.

Late Run Netting Project Large Fish 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 at the sonar station located at river mile 8.6.

Weekly Sportfish Fishing Report for this area


Late Run Kenai River Chinook Inseason Summary for Fri. Aug 18

Chinook Salmon Run Update: 

On August 17 the daily estimated passage of Chinook salmon greater than 34 inches in length was 175 Chinook salmon for a season total of 21,097 Chinook salmon greater than 34 inches in length through August 17. Approximately 99% of Chinook salmon greater than 34 inches in length have typically passed the sonar by this date.

Using mean run-timing and projected sport harvest, the current projected final escapement is approximately 20,000 Chinook salmon greater than 34 inches in length. The current sustainable escapement goal for late-run Chinook salmon greater than 34 inches in length is 13,000 – 27,000 fish.

Estimates of total run for Kenai River late-run Chinook salmon are calculated to include the sum of eastside set-net harvests, marine recreational harvests, personal use dipnet harvests, inriver sport harvests below the sonar, and passage at the sonar. The current total run projection of 28,000 Chinook salmon greater than 34 inches in length through August 14 is below the preseason forecast of 33,000 fish.

The final late-run summary will be posted at the end of August.

Fishery Update:

The sport fishery for Chinook salmon ended on Monday, July 31. Chinook salmon captured in the netting program recently have been primarily older (larger) Chinook salmon.

For complete information about the late-run outlook please visit the following link:

Late-Run

http://www.adfg.alaska.gov/static/regulations/regprocess/fisheriesboard/pdfs/2016-2017/uci/2017_kenai_laterun_outlook.pdf

Water Conditions:

Water clarity: Excellent; last visibility reading 1.45 meters at the river mile 8.6 netting program station.

Water flow/current: 11,500 ft3/sec today vs. 50 yr. median (14,100 ft3/ sec). Water level is well below the average of 15,000 ft3/ sec for this time of year.

Water temperature: August 17, 55.5°F at the river mile 14 Chinook salmon sonar station.

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