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:

  • 2018
  • 2017
  • 2016
  • 2015
  • 2014
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 Assistant 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 or JSON format]

Date
2018
Count
2018
Cumulative
2018
Cumulative
2017
Cumulative
2016
Cumulative
2015
Notes for
2018
Aug-20 - 5,258 22,133 17,447 17,687  
Aug-19 - 5,258 21,844 17,447 17,530  
Aug-18 - 5,258 21,440 17,254 17,410  
Aug-17 - 5,258 21,097 17,091 17,175  
Aug-16 - 5,258 20,922 17,012 16,945  
Aug-15 - 5,258 20,687 16,698 16,807  
Aug-14 - 5,258 20,452 16,517 16,595  
Aug-13 - 5,258 20,272 16,227 16,323  
Aug-12 - 5,258 19,917 15,847 15,972  
Aug-11 - 5,258 19,634 15,503 15,804  
Aug-10 - 5,258 19,307 15,401 15,623  
Aug-09 - 5,258 19,102 15,027 15,103  
Aug-08 - 5,258 18,704 14,762 14,680  
Aug-07 - 5,258 18,112 14,485 14,197  
Aug-06 - 5,258 17,587 14,126 13,768  
Aug-05 - 5,258 16,920 13,860 13,062  
Aug-04 - 5,258 16,166 13,468 12,470  
Aug-03 - 5,258 15,429 13,051 12,018  
Aug-02 - 5,258 14,952 12,729 11,626  
Aug-01 - 5,258 14,350 12,551 11,324  
Jul-31 - 5,258 13,916 12,266 11,161  
Jul-30 - 5,258 12,993 12,036 10,922  
Jul-29 - 5,258 12,613 11,605 10,584  
Jul-28 - 5,258 12,070 11,121 10,251  
Jul-27 - 5,258 11,448 10,580 9,876  
Jul-26 - 5,258 11,050 10,028 9,484  
Jul-25 - 5,258 10,374 9,669 8,935  
Jul-24 - 5,258 9,813 9,226 8,331  
Jul-23 - 5,258 8,828 8,785 7,305  
Jul-22 - 5,258 8,439 8,350 6,483  
Jul-21 380 5,258 8,041 7,843 5,836  
Jul-20 567 4,878 7,556 7,505 5,353  
Jul-19 513 4,311 7,206 7,207 5,033  
Jul-18 359 3,798 6,706 6,824 4,653  
Jul-17 269 3,439 6,024 6,330 4,128  
Jul-16 272 3,170 5,385 5,967 3,651  
Jul-15 128 2,898 4,770 5,727 3,349  
Jul-14 151 2,770 4,330 5,329 3,041  
Jul-13 223 2,619 3,938 4,751 2,739  
Jul-12 296 2,396 3,540 4,178 2,455  
Jul-11 122 2,100 3,119 3,400 2,141  
Jul-10 93 1,978 2,715 2,803 1,887  
Jul-09 248 1,885 2,323 2,347 1,533  
Jul-08 224 1,637 1,852 2,094 1,227  
Jul-07 362 1,413 1,484 1,817 966  
Jul-06 253 1,051 1,194 1,609 790  
Jul-05 200 798 1,031 1,403 669  
Jul-04 199 598 820 1,066 498  
Jul-03 121 399 609 867 321  
Jul-02 163 278 437 638 230  
Jul-01 115 115 181 264 79  

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. Jul 20

King Salmon Run Update:

The late-run king salmon sustainable escapement goal range is 13,500 to 27,000 large king salmon (> 34 inches). On July 19, the daily estimated passage was 513 king salmon for a season total of 4,311 king salmon Historically the quarter point of the run occurs around July 17 and the mid-point is July 27. The escapement projection for average run timing is approximately 14,100 fish. ADF&G managers will monitor sonar passage through the weekend and at that time assess whether the current management strategy for king salmon is still appropriate.

Total reported ESSN harvest through July 19 is 1,645 king salmon. From 2010-2017, Kenai River mainstem king salmon have comprised approximately 71% (range 61-79%) of ESSN harvests of king salmon. Based on these historic proportions, the preliminary harvest of mainstem king salmon (all sizes) may range from 871 to 1,128 fish. In 2018, ESSN fishery samples collected to data are comprised of 17% large and 83% small king salmon. When those proportions are applied to the total harvest, the preliminary contribution of large Kenai River mainstem king salmon to date is approximately 148 to 192 fish.

These estimates are approximations, as actual estimates are not available until genetic stock composition samples are analyzed post-season.

For comparison, creel survey estimates through 7/18 indicate a preliminary total sport harvest of 607 Chinook salmon, of which 101 are large fish.

The next inseason summary will be updated Friday, July 27th.

Fishery Update:

Fishing effort has been low to moderate this week with catch rates improving the past few days. The proportion of large king salmon captured in the netting program picked up this week and more large fish were reported being caught (and released) by anglers on the river.

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

Late-Run
http://www.adfg.alaska.gov/static-sf/fishing_reports/PDFs/2018_kenai_laterun_outlook.pdf

Water Conditions:

Water clarity: Moderate; last visibility reading 0.75 meters at the river mile 8.6 netting program station.

Water temperature: July 10, 51 F at the river mile 14 king salmon sonar station.

This information was compiled based on raw and historical data for inseason management purposes.
Final data is subject to change.