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Alaska Department of Fish and Game


Kenai Chinook Estimates, Indices and Inseason Run Summaries

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Location: Kenai River (king salmon)
Species: Chinook - Early Run
Method: Sonar

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

  • 2014
  • 2013
  • 2012
  • 2011
  • 2010
Daily Counts
Cumulative

Description: The DIDSON sonar estimates will be updated twice weekly. The daily estimates represent king salmon of all age and size classes and is expanded by 1.55 to account for early-run king salmon passing outside of the ensonified zone, and 1.28 to account for late-run salmon. This DIDSON sonar estimate is used to measure total run 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 about king salmon passage go to the Indices of king salmon abundance tab which is updated as data becomes available. The inseason run summary tab will provide information about king salmon passage at the mile 8.6 DIDSON 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.

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

Weekly Sportfish Fishing Report for this area

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

Date
2014
Count
2014
Cumulative
2014
Cumulative
2013
Cumulative
2012
Cumulative
2011
Notes for
2014
Jun-30 183 5,311 2,041 5,173 10,100  
Jun-29 67 5,128 1,866 4,913 9,503  
Jun-28 50 5,061 1,692 4,738 9,146  
Jun-27 60 5,011 1,585 4,606 8,885  
Jun-26 121 4,951 1,520 4,453 8,787  
Jun-25 129 4,830 1,450 4,365 8,605  
Jun-24 116 4,701 1,386 4,270 8,123  
Jun-23 152 4,585 1,343 4,217 7,795  
Jun-22 96 4,433 1,298 4,090 7,301  
Jun-21 144 4,337 1,224 3,994 6,977  
Jun-20 198 4,193 1,139 3,890 6,643  
Jun-19 93 3,995 1,108 3,713 6,307  
Jun-18 203 3,902 1,040 3,575 5,899  
Jun-17 166 3,699 1,028 3,414 5,507  
Jun-16 141 3,533 972 3,307 5,218  
Jun-15 141 3,392 916 3,180 4,942  
Jun-14 81 3,251 876 3,008 4,646  
Jun-13 174 3,170 798 2,910 4,325  
Jun-12 381 2,996 713 2,752 3,949  
Jun-11 245 2,615 679 2,561 3,816  
Jun-10 122 2,370 646 2,460 3,607  
Jun-09 321 2,248 612 2,243 3,264  
Jun-08 105 1,927 576 2,037 3,063  
Jun-07 71 1,822 471 1,890 2,820  
Jun-06 332 1,751 440 1,803 2,669  
Jun-05 301 1,419 421 1,685 2,273  
Jun-04 409 1,118 384 1,589 1,982  
Jun-03 248 709 373 1,454 1,841  
Jun-02 31 461 345 1,311 1,733  
Jun-01 39 430 316 1,161 1,673  
May-31 50 391 268 1,043 1,617  
May-30 68 341 263 947 1,462  
May-29 28 273 247 842 1,272  
May-28 28 245 242 795 1,108  
May-27 28 217 237 626 950  
May-26 48 189 232 578 838  
May-25 22 141 218 502 711  
May-24 8 119 185 438 476  
May-23 14 111 149 374 348  
May-22 5 97 109 265 207  
May-21 23 92 58 231 121  
May-20 31 69 38 192 81  
May-19 20 38 22 144 75  
May-18 3 18 20 86 62  
May-17 9 15 9 61 48  
May-16 6 6 0 24 34 First Day of Counts

Sonar Tools

Early Run DIDSON Threshold (>30 in.) Sonar Estimate

The DIDSON threshold estimate is an estimate for fish targets that are measured to be 750 millimeters (30 inches) or greater in total length. These estimates are a daily index of the relative abundance of king salmon passage between the transducers at the mile 8.6 sonar and are not expanded to estimate passage of fish outside the ensonified zone.

Show DIDSON Threshold Data Table ↓

Date 2014 2013 2012 2011
May-16 6 0 12 27
May-17 12 6 36 34
May-18 12 12 48 41
May-19 24 18 84 47
May-20 42 30 114 53
May-21 66 42 134 83
May-22 66 78 152 155
May-23 72 102 237 240
May-24 72 131 268 312
May-25 84 144 298 445
May-26 108 150 342 511
May-27 138 150 366 565
May-28 156 150 463 662
May-29 180 156 545 740
May-30 216 168 593 831
May-31 246 168 635 909
Jun-01 264 191 692 940
Jun-02 276 209 776 964
Jun-03 403 221 848 1,018
Jun-04 584 227 920 1,096
Jun-05 700 245 968 1,235
Jun-06 845 257 1,022 1,458
Jun-07 875 269 1,064 1,585
Jun-08 917 311 1,142 1,845
Jun-09 1,044 329 1,230 1,930
Jun-10 1,092 341 1,333 2,075
Jun-11 1,188 353 1,387 2,160
Jun-12 1,345 365 1,471 2,214
Jun-13 1,411 401 1,549 2,371
Jun-14 1,447 437 1,597 2,504
Jun-15 1,501 455 1,675 2,626
Jun-16 1,555 479 1,766 2,771
Jun-17 1,621 503 1,808 2,904
Jun-18 1,705 515 1,874 3,055
Jun-19 1,747 541 1,940 3,248
Jun-20 1,825 561 2,019 3,393
Jun-21 1,885 597 2,061 3,556
Jun-22 1,921 633 2,103 3,707
Jun-23 1,987 651 2,157 3,967
Jun-24 2,029 675 2,175 4,130
Jun-25 2,077 776 2,207 4,390
Jun-26 2,125 818 2,243 4,481
Jun-27 2,155 848 2,321 4,528
Jun-28 2,173 902 2,375 4,655
Jun-29 2,203 992 2,447 4,836
Jun-30 2,281 1,082 2,556 5,130

Early Run Sonar Net Apportioned Cumulative Passage Estimates

The Net Apportioned sonar estimate of Chinook salmon passage is based on the combination of the number of fish detected by sonar and number of Chinook salmon captured by the netting project conducted at the sonar station located at river mile 8.6.


Non-Sonar Tools

Early 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 the sonar station located at river mile 8.6. The 2014 netting project is different from the previous years and may not be comparable. In 2014 the amount of time spent netting doubled and some netting is also being conducted nearshore


Early 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.

Weekly Sportfish Fishing Report for this area


Final Early Run Kenai River Chinook Inseason Summary

King salmon run update: 

On June 30 the daily estimated passage of king salmon was 183 fish for a preliminary season total inriver run of 5,311 early-run king salmon through June 30. Based on inseason assessment information the midpoint of the 2014 early-run was June 11 and was 4 days early compared to typical run-timing through June 30. The optimal escapement goal (OEG) for early-run Kenai River king salmon is 5,300-9,000 fish.

The first late-run king salmon update will be Thursday, July 3.

Fishery Update:

Early-Run
Fishing for king salmon was closed by emergency order.

Thru June 30 king salmon captured in the netting program during the early-run were primarily smaller, younger fish. Approximately 65% of the early-run kings in the netting project were less than 30 inches in length. Also, approximately 21% of the early-run kings in the netting project were females.

Late-Run
Starting July 1, fishing for king salmon is allowed with restrictions found in the emergency orders below:

The emergency orders can be found at the following links:

http://dfg.alaska.gov/Static-sf/EONR/PDFs/2014/R2/EO-2-KS-1-04-14_closeERKenaiKing%20final.pdf
http://www.adfg.alaska.gov/Static-sf/EONR/PDFs/2014/R2/EO-2-KS-1-26-14%20LRKenaiKing%20No%20Bait.pdf

The news release can be found at the following link:

http://www.adfg.alaska.gov/sf/EONR/index.cfm?ADFG=region.NR&NRID=1975

Water Conditions:

Water clarity: Fair; last visibility reading 0.67 meters at the river mile 8.6 sonar station.

Water flow/current: Today (10,800 ft3/sec) vs. 49 yr. median (11,500 ft3/sec). Water discharge is slightly below average for this time of year.

Water temperature: June 30 at river mile 8.6 sonar station 52.3°F.

Summary of cumulative raw information collected thru Jun 30 (by year) that is used to assess Kenai River king salmon run strength.
Year Number Chinook Captured in Test Net at Sonar Station Number Sockeye Captured in Test Net at Sonar Station Chinook Sport Harvest Below Soldotna Estimated by Creel Survey Cumulative DIDSON Sonar Estimate Cumulative Net Apportioned Sonar Estimate Commercial Set Net Harvest
2002 369 662 376 * 9,013 N/A
2003 874 840 1,948 * 18,616 N/A
2004 448 460 2,285 * 26,468 N/A
2005 471 1,560 2,876 * 18,139 N/A
2006 304 1,417 3,397 * 10,955 N/A
2007 266 1,167 2,645 * 6,641 N/A
2008 205 1,033 2,602 * 7,091 N/A
2009 167 931 2,023 * 4,168 N/A
2010 164 1,125 837 7,738 3,732 N/A
2011 221 1,688 816 10,099 6,836 N/A
2012 105 953 316 5,171 2,786 N/A
2013 55 557 N/A 2,038 2,176 N/A
2014 134 3,082 N/A 5,311 3,565 N/A

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