Fish Count Data Search

Year:
Location:
Species:


Location: Anchor River
Species: Chinook
Method: Sonar/Weir

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

  • 2018
Daily Counts
Cumulative

Description:

Weirs are installed on the South and North forks of the Anchor River in early-May to begin monitoring Chinook salmon, coho salmon, and steelhead escapement through the fall. The South fork weir is located at river mile 2.5 and the North fork weir is located at river mile 3.4. Both weirs are located above the salmon sport fishery area, which ends at an ADFG marker approximately 200 yards upstream of the Old Sterling Highway Bridge. An underwater video system is installed within each floating resistance board weir and motion-detected fish passage is recorded 24 hours per day. High spring flows prevent installation of the South Fork floating weir in most years, so a partial fixed-picket weir with sonar external link is used until flows subside around the end of May.

Chinook salmon escapement has been monitored via weirs in the Anchor River since 2003. Escapements have ranged from a low of 2,499 in 2014, to a high of 12,016 in 2004. The Chinook salmon run to the Anchor River begins in May and lasts through early August. Historically, 50% of the Chinook salmon run had passed the weir by June 10, but later run timing in recent years has pushed the 50% date to June 22. The current Chinook salmon sustainable escapement goal is 3,800 – 7,600.

Coho salmon escapement in the Anchor River has previously been monitored in the late ‘80s and 2004-2011. Coho salmon escapements ranged from 2,409 to 20,187 in these years. Coho salmon begin entering the Anchor River in late-July and run through September. Run-timing typically peaks in late-August, although it is highly variable and subject to influence by river water levels. There is not currently an escapement goal established for Anchor River coho salmon.

Steelhead escapement in the Anchor River has not been fully enumerated, but partial counts of kelts (steelhead emigrating from the system in spring) and immigrating steelhead indicate run sizes are variable and typically small. The most complete fall counts occurred in 1988 and 1992 when 878 and 1,261 fish were counted, respectively. There is not an escapement goal established for Anchor River steelhead.

Sustainable Escapement Goal for Chinook: 3,800 - 7,600 (Graphed above)

Contact: Area Manager,
(907) 235-1739

98 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
Notes for
2018
Aug-08 14 3,049  
Aug-07 14 3,035  
Aug-06 12 3,021  
Aug-05 18 3,009  
Aug-03 38 2,991  
Aug-02 31 2,953  
Aug-01 22 2,922  
Jul-31 25 2,900  
Jul-30 41 2,875  
Jul-29 45 2,834  
Jul-28 53 2,789  
Jul-27 60 2,736  
Jul-25 48 2,676  
Jul-24 22 2,628  
Jul-23 34 2,606  
Jul-22 52 2,572  
Jul-21 32 2,520  
Jul-20 40 2,488  
Jul-19 102 2,448  
Jul-18 184 2,346  
Jul-17 144 2,162  
Jul-16 164 2,018  
Jul-15 31 1,854  
Jul-14 23 1,823  
Jul-13 22 1,800  
Jul-12 16 1,778  
Jul-11 21 1,762  
Jul-10 13 1,741  
Jul-09 12 1,728  
Jul-08 62 1,716  
Jul-07 112 1,654  
Jul-06 98 1,542  
Jul-05 116 1,444  
Jul-04 101 1,328  
Jul-03 177 1,227  
Jul-02 70 1,050 video weir counts
Jul-01 45 980  
Jun-30 60 935  
Jun-29 97 875  
Jun-28 23 778  
Jun-27 42 755  
Jun-26 14 713  
Jun-25 32 699  
Jun-24 10 667  
Jun-23 18 657  
Jun-22 37 639  
Jun-21 24 602  
Jun-20 4 578  
Jun-19 6 574  
Jun-18 1 568  
Jun-17 0 567  
Jun-16 0 567  
Jun-15 29 567  
Jun-14 31 538  
Jun-13 7 507  
Jun-12 48 500  
Jun-11 37 452  
Jun-10 55 415  
Jun-09 44 360  
Jun-08 48 316  
Jun-07 57 268  
Jun-06 41 211  
Jun-05 12 170  
Jun-04 15 158  
Jun-03 10 143  
Jun-02 11 133  
Jun-01 18 122  
May-31 9 104  
May-30 5 95  
May-29 13 90  
May-28 26 77  
May-27 8 51  
May-26 6 43  
May-25 10 37  
May-24 9 27  
May-23 6 18  
May-22 12 12  
May-21 0 0 North and South Fork Combined Weir Counts
May-20 0 0  
May-19 0 0  
May-18 0 0  
May-17 0 0  
May-16 0 0  
May-15 0 0  
May-14 0 0  
May-13 0 0  
May-12 0 0  
May-11 0 0  
May-10 0 0 North and South fork combined
May-09 0 0 South Fork DIDSON sonar operational at 1pm
May-08 0 0 North Fork Video Weir
May-07 0 0 North Fork Video Weir
May-06 0 0 North Fork Video Weir
May-05 0 0 North Fork Video Weir
May-04 0 0 North Fork Video Weir
May-03 0 0 North Fork Video Weir
May-02 0 0 North Fork Video Weir
May-01 0 0 North Fork Video Weir Installed