Fork length distribution of juvenile chum sampled below Bonneville Dam, 2006
                                   
Bonneville Dam
        Number of chum in millimeters  Mean length % chm tailwater discharge water
Week Date Total Range 30-39 40-49 50-59 60-69 70-79 80-89 90-100  > 100  CHM < 100 < 60mm 60-100mm  (ft.)* (kcfs)* temp. (oF)
8 14-Feb 2 38-39 2 0 0 0 0 0 0 0 39 100% 0% 17.4 189.4 40.4
10 28-Feb 3 36-41 2 1 0 0 0 0 0 0 39 100% 0% 15.5 172.7 38.4
11 7-Mar 1 39 1 0 0 0 0 0 0 0 39 100% 0% 15.9 185.8 40.7
11 10-Mar 9 38-44 3 6 0 0 0 0 0 0 41 100% 0% 16.4 184.0 40.4
12 17-Mar 16 39-44 2 14 0 0 0 0 0 0 41 100% 0% 13.0 155.5 41.5
13 21-Mar 23 38-47 4 19 0 0 0 0 0 0 41 100% 0% 13.1 150.8 42.4
13 24-Mar 46 39-46 8 38 0 0 0 0 0 0 42 100% 0% 11.6 115.3 43.2
14 28-Mar 37 37-46 3 34 0 0 0 0 0 0 42 100% 0% 16.6 194.2 44.3
14 31-Mar 12 42-51 0 11 1 0 0 0 0 0 44 100% 0% 17.1 203.6 46.0
15 3-Apr 116 37-58 23 90 3 0 0 0 0 0 42 100% 0% 17.1 191.3 46.6
15 6-Apr 1 44 0 1 0 0 0 0 0 0 44 100% 0% 22.5 283.8 47.2
16 11-Apr 15 39-50 2 12 1 0 0 0 0 0 43 100% 0% 25.2 348.6 47.6
16 14-Apr 17 34-64 6 10 0 1 0 0 0 0 42 94% 6% 23.9 323.1 48.1
17 17-Apr 2 47-48 0 2 0 0 0 0 0 0 48 100% 0% 25.9 359.6 48.2
17 20-Apr 1 35 1 0 0 0 0 0 0 0 35 100% 0% 26.4 366.8 48.7
18 24-Apr 0   0 0 0 0 0 0 0 0 0     24.1 325.2 49.8
18 27-Apr 0   0 0 0 0 0 0 0 0 0     25.0 343.7 50.4
19 1-May 0   0 0 0 0 0 0 0 0 0     26.1 340.1 51.6
19 4-May 0   0 0 0 0 0 0 0 0 0     25.7 364.5 53.5
20 8-May 0   0 0 0 0 0 0 0 0 0     22.9 318.8 52.8
20 11-May 1 40 0 1 0 0 0 0 0 0 40 100% 0% 19.5 296.7 54.1
21 15-May 0   0 0 0 0 0 0 0 0     21.1 291.5 55.4
21 18-May 0   0 0 0 0 0 0 0 0     24.9 345.8 57.3
22 22-May 0   0 0 0 0 0 0 0 0     26.5 379.1 58.6
22 25-May 0   0 0 0 0 0 0 0 0     26.9 395.8 58.9
23 30-May 0   0 0 0 0 0 0 0 0     27.3 402.9 57.0
24 5-Jun 0   0 0 0 0 0 0 0 0        
24 8-Jun 0   0 0 0 0 0 0 0 0        
               
               
               
               
                                   
301 57 239 5 1 0 0 0 0 32