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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 (Chinook)
Species: Chinook - Early Run
Method: Sonar

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

  • 2015
  • 2014
  • 2013
Daily Counts
Cumulative

Description: Beginning in 2015 the department will be managing Kenai Chinook runs using the ARIS sonar located at river mile 14, instead of the DIDSON sonar located at river mile 8.6. The 2013 and 2014 data provided below are ARIS sonar estimates from rm 14. The ARIS sonar estimates will be updated twice weekly. The daily estimates represent Chinook salmon of all age and size classes. This ARIS sonar estimate is used to measure total run abundance relative to the optimum escapement goal of 5,300-9,000 early-run Chinook salmon and the sustainable escapement goal of 15,000-30,000 late-run Chinook salmon. To view daily estimates about Chinook salmon passage go to the Abundance Indices tab, which is updated as data becomes available. The inseason run summary tab will provide information about Chinook 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.

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
2015
Count
2015
Cumulative
2015
Cumulative
2014
Cumulative
2013
Notes for
2015
Jun-30 126 6,190 4,214 2,308  
Jun-29 159 6,064 4,131 2,207  
Jun-28 75 5,905 4,083 2,084  
Jun-27 113 5,830 4,017 1,985  
Jun-26 183 5,717 3,905 1,905  
Jun-25 110 5,534 3,811 1,850  
Jun-24 119 5,424 3,750 1,781  
Jun-23 49 5,305 3,702 1,744  
Jun-22 125 5,256 3,602 1,679  
Jun-21 110 5,131 3,439 1,610  
Jun-20 156 5,021 3,339 1,553  
Jun-19 70 4,865 3,191 1,493  
Jun-18 198 4,795 3,048 1,433  
Jun-17 141 4,597 2,922 1,375  
Jun-16 85 4,456 2,777 1,354  
Jun-15 155 4,371 2,670 1,328  
Jun-14 159 4,216 2,505 1,245  
Jun-13 224 4,057 2,318 1,104  
Jun-12 388 3,833 2,193 1,017  
Jun-11 282 3,445 2,029 967  
Jun-10 202 3,163 1,823 910  
Jun-09 279 2,961 1,715 813  
Jun-08 245 2,682 1,524 657  
Jun-07 376 2,437 1,367 578  
Jun-06 335 2,061 1,147 417  
Jun-05 165 1,726 787 336  
Jun-04 197 1,561 599 314  
Jun-03 172 1,364 367 310  
Jun-02 232 1,192 238 249  
Jun-01 164 960 204 220  
May-31 94 796 165 163  
May-30 81 702 140 143  
May-29 162 621 100 126  
May-28 74 459 96 100  
May-27 75 385 66 96  
May-26 50 310 59 85  
May-25 33 260 53 81  
May-24 65 227 49 57  
May-23 15 162 49 34  
May-22 9 147 40 33  
May-21 34 138 30 29  
May-20 22 104 22 29  
May-19 51 82 19 26  
May-18 24 31 11 23  
May-17 0 7 3 11  
May-16 7 7 0 0 First day of sonar operations.

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 - 0 12 27
May-17 - 6 36 34
May-18 - 12 48 41
May-19 - 18 84 47
May-20 - 30 114 53
May-21 - 42 134 83
May-22 - 78 152 155
May-23 - 102 237 240
May-24 - 131 268 312
May-25 - 144 298 445
May-26 - 150 342 511
May-27 - 150 366 565
May-28 - 150 463 662
May-29 - 156 545 740
May-30 - 168 593 831
May-31 - 168 635 909
Jun-01 - 191 692 940
Jun-02 - 209 776 964
Jun-03 - 221 848 1,018
Jun-04 - 227 920 1,096
Jun-05 - 245 968 1,235
Jun-06 - 257 1,022 1,458
Jun-07 - 269 1,064 1,585
Jun-08 - 311 1,142 1,845
Jun-09 - 329 1,230 1,930
Jun-10 - 341 1,333 2,075
Jun-11 - 353 1,387 2,160
Jun-12 - 365 1,471 2,214
Jun-13 - 401 1,549 2,371
Jun-14 - 437 1,597 2,504
Jun-15 - 455 1,675 2,626
Jun-16 - 479 1,766 2,771
Jun-17 - 503 1,808 2,904
Jun-18 - 515 1,874 3,055
Jun-19 - 541 1,940 3,248
Jun-20 - 561 2,019 3,393
Jun-21 - 597 2,061 3,556
Jun-22 - 633 2,103 3,707
Jun-23 - 651 2,157 3,967
Jun-24 - 675 2,175 4,130
Jun-25 - 776 2,207 4,390
Jun-26 - 818 2,243 4,481
Jun-27 - 848 2,321 4,528
Jun-28 - 902 2,375 4,655
Jun-29 - 992 2,447 4,836
Jun-30 - 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 was 174 king salmon for a season total of 2,038 king salmon. Through June 30 the cumulative values for all four indices of king salmon abundance were the lowest on record. Given the unprecedented low run, an emergency order was issued Tuesday, June 18 closing the Kenai River to king salmon fishing on June 20 for the remainder of June and, for the Kenai River above the lower Slikok Creek sanctuary markers, until July 14.

Based on the low abundance of the Kenai River early-run king salmon stock, the late-run king salmon fishery began July 1 without the use of bait. Prohibiting use of bait during July is intended to reduce harvest of both early- and late-run stocks. The department has issued the following emergency orders:

From 12:01 a.m., Thursday, June 20, through 11:59 p.m., Sunday, June 30, 2013:

In the Kenai River, from the mouth upstream to Skilak Lake, and in the Moose River from its confluence with the Kenai River upstream to the northernmost edge of the Sterling Highway Bridge, king salmon fishing is closed, and no king salmon of any size may be retained. Any king salmon caught while fishing for other species may not be removed from the water, and must be released immediately.


From 12:01 a.m., Monday, July 1, through 11:59 p.m., Sunday, July 14, 2013:

In the Kenai River, from ADF&G regulatory markers located approximately 300 yards downstream from the mouth of Slikok Creek, upstream to the outlet of Skilak Lake, and in the Moose River from its confluence with the Kenai River upstream to the northernmost edge of the Sterling Highway bridge, king salmon fishing is closed, and no king salmon of any size may be retained. Any king salmon caught while fishing for other species may not be removed from the water, and must be released immediately.

From 12:01 a.m., Monday, July 1, through 11:59 p.m., Sunday, July 31, 2013:

In the Kenai River drainage, from the mouth upstream to Skilak Lake, and in the Moose River from its confluence with the Kenai River upstream to the northernmost edge of the Sterling Highway Bridge, only one unbaited, single-hook, artificial lure is allowed. The use of bait/scent is not allowed.

The news releases and emergency orders can be found at the following links:

http://www.adfg.alaska.gov/index.cfm?adfg=fishingSportFishingInfo.NR&NRID=1797&year=2013

http://www.adfg.alaska.gov/static-sf/EONR/PDFs/2013/R2/EO-2-KS-1-22-13%20Close%20ERKenaiKing_Final.pdf

http://www.adfg.alaska.gov/index.cfm?adfg=fishingSportFishingInfo.NR&NRID=1802&year=2013

The first late-run update will be on Friday, July 5.

Fishery Update:

The king salmon sport fishery closed at 11:59 p.m., Wednesday, June 19. Fishing effort and catch rates remained unusually low when the river was open to fishing. From May 16 through June 19 the total catch of king salmon below the Soldotna Bridge estimated by creel survey was a total of 40 fish. Harvest was not allowed due to the catch and release emergency order.


Water Conditions:

Water clarity: Fair; last visibility readings 0.7 meters at river mile 15.3, and 0.7 meters at the river mile 8.6 sonar station.

Water flow/current: Stable 15,100 ft3/sec today vs 48 yr median (11,700 ft3 / sec). Water is higher than average.

Water temperature: June 30 at sonar station 50° F.

Summary of cumulative raw information collected thru Jul 1 (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 55 555 0 2,038 2,190 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.