Willow Creek Weir Trapping Summary 9/5/2015


Willow Creek Weir Trapping Summary Update 8/27/2015-9/2/2015


Total combined Chinook is 24.

Total combined Steelhead is 55.

Chinook Coho Steelhead
Julian Trap Grilse 2 Adults Combined Grilse 2 Adults Combined 1/2 lbers 2 Adults Combined
week Inclusive dates days Total Ads 3 Total Ads 3 Total Ads 3 Total RMs 3 Total RMs 3 Total RMs 3 Total Ads 3 Total Ads 3 Total Ads 3
35 27-Aug —- 2-Sep 5 6 0 18 1 24 1 0 0 0 0 0 0 3 2 52 34 55 36
36 3-Sep 9-Sep 0 0 0 0 0 0
37 10-Sep 16-Sep 0 0 0 0 0 0
38 17-Sep 23-Sep 0 0 0 0 0 0
39 24-Sep 30-Sep 0 0 0 0 0 0
40 1-Oct 7-Oct 0 0 0 0 0 0
41 8-Oct 14-Oct 0 0 0 0 0 0
42 15-Oct 21-Oct 0 0 0 0 0 0
43 22-Oct 28-Oct 0 0 0 0 0 0
44 29-Oct 4-Nov 0 0 0 0 0 0
45 5-Nov 11-Nov 0 0 0 0 0 0
46 12-Nov 18-Nov 0 0 0 0 0 0
47 19-Nov 25-Nov
48 26-Nov 2-Dec
49 3-Dec 9-Dec
50 10-Dec 16-Dec 6 0 18 1
2015 Season Totals: 0 6 0 18 1 24 1 0 0 0 0 0 0 3 2 52 34 55 36
2014 Season Totals: 43 163 4 908 134 1,071 138 293 284 803 729 1,096 1,013 103 83 1,004 432 1,107 515

Notes:
1/ Summary based on real time unedited data. Not to be used for analysis.
2/ Provisionally, Chinook and coho grilse are < 56 cm, FL. Steelhead 3/ Ads denote adipose fin-clipped fish; RMs denote right maxillary clipped fish. Both clip counts are a subset of the total shown.
4/ Totals are for entire season.

1. The Willow Creek weir is designed to capture and estimate the population of spring Chinook salmon and is typically operated from June or early July (depending on river flow) through September. The weir is “fished” Sunday evening through Friday afternoon. The weir is not fished on weekends and afternoons to allow fish passage.
2. Fall Chinook, steelhead, coho and brown trout are also captured at Willow Creek weir. We do not attempt make population estimates for these species at Willow Creek weir.
3. Chinook salmon are tagged with a “spaghetti tag” which is pvc tubing placed behind the dorsal fin. Each tag has a number and is inscribed with CDFW address.
4. Brown trout and steelhead are tagged with a “floy” tag which is inserted below the dorsal fin. Floy tags are short pieces of tubing inserted into the side of the fish and are also inscribed with our address.

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