Table 10.  Fork length distribution of juvenile Chum sampled below Bonneville Dam, 2005.
                                           
Bonneville Dam
                                                                          Number of chum  Mean length % Chum   Tailwater Discharge Water
Week Date Total   Range (mm) 30-39mm 40-49mm 50-59mm 60-69mm 70-79mm          Chum   < 40mm      (ft.)1 (kcfs)1 temp. (oF)1
8 15-Feb 1 37 1 0 0 0 0 37.0 100 15.4 155.2 39.8
9 22-Feb 1 41 0 1 0 0 0 41.0 0 12.1 126.0 39.6
9 25-Feb 2 39 2 0 0 0 0 39.0 100 12.1 121.0 39.6
10 1-Mar 101 37-47 25 76 0 0 0 41.0 25 12.0 120.4 40.2
10 4-Mar 12 36-44 6 6 0 0 0 40.4 50 12.9 140.4 40.6
11 8-Mar 9 37-49 1 8 0 0 0 41.9 11 11.8 121.8 41.5
11 11-Mar 44 37-46 14 30 0 0 0 41.0 32 13.5 143.7 42.9
12 15-Mar 185 37-50 45 139 1 0 0 41.6 24 11.9 123.1 43.6
12 18-Mar 136 39-49 17 119 0 0 0 42.2 13 11.9 126.8 44.2
13 22-Mar 138 38-47 18 120 0 0 0 42.3 13 12.2 134.3 44.4
13 25-Mar 592 1 36-50 49 329 1 0 0 41.9 13 13.5 135.2 45.1
14 29-Mar 146 36-50 50 94 2 0 0 40.8 34 16.6 149.2 45.2
14 1-Apr 67 38-52 6 58 3 0 0 44.0 9 15.8 158.6 45.6
15 5-Apr 109 39-59 8 88 13 0 0 44.2 7 14.4 151.0 45.8
15 8-Apr 59 36-57 12 40 7 0 0 43.2 20 12.1 122.1 46.4
16 12-Apr 28 39-53 1 24 3 0 0 44.1 4 14.0 137.6 47.2
16 15-Apr 64 37-58 8 42 14 0 0 45.9 13 14.0 155.0 49.0
17 18-Apr 122 37-62 12 95 13 2 0 43.9 10 12.1 127.6 49.0
17 21-Apr 57 38-55 8 43 6 0 0 43.8 14 12.1 129.9 50.0
18 26-Apr 20 39-60 2 15 2 1 0 45.4 10 15.8 180.4 52.0
18 29-Apr 5 36-43 3 2 0 0 0 38.6 60 15.8 170.7 53.0
19 3-May 0 - 0 0 0 0 0 - - 16.0 180.5 53.8
19 6-May 0 - 0 0 0 0 0 - - 17.3 198.8 55.1
20 10-May 1 53 0 0 1 0 0 53.0 0 19.9 236.7 55.4
20 13-May 0 - 0 0 0 0 0 - - 20.4 235.2 56.7
21 17-May 5 43-49 0 5 0 0 0 45.8 1 20.4 245.0 57.0
21 20-May 0 - 0 0 0 0 0 - - 22.0 269.4 57.3
22 24-May 2 62-65 0 0 0 2 0 63.5 0 21.6 262.0 57.2
23 1-Jun 0 - 0 0 0 0 0 - - 18.5 243.4 59.2
23 3-Jun 0 - 0 0 0 0 0 - - 18.6 229.9 59.3
24 7-Jun 0 - 0 0 0 0 0 - - 16.3 168.0 59.6
25 14-Jun 0 - 0 0 0 0 0 - - 16.4 111.1 60.8
                                           
1,906 1 288 1,334 66 5 0
1   Includes fish that were not sampled
2  Daily readings taken at 12:00 pm (www.nwd-wc.army.mil/cgi-bin/DataQuery).