Table 9.  Fork length distribution of juvenile Chinook sampled below Bonneville Dam, 2005.
                                     
Bonneville Dam
          Number of chinook  Mean length % Chinook % Chum Tailwater Discharge Water
Week Date Total   Range (mm) 30-39mm 40-49mm 50-59mm 60-69mm 70-79mm 80-89mm 90-100mm  >100mm  Chinook< 150mm < 50mm < 40mm  (ft.)1 (kcfs)1 temp. (oF)1
3 13-Jan 31 37-114 4 25 0 0 0 0 1 1 45.5 94 15.7 162.5 40.0
4 19-Jan 5 40-43 0 5 0 0 0 0 0 0 41.6 100 13.6 148.9 38.0
4 21-Jan 10 34-40 9 1 0 0 0 0 0 0 37.0 100 13.8 139.5 38.0
5 25-Jan 1 104 0 0 0 0 0 0 0 1 104.0 0 12.8 142.8 38.0
5 28-Jan 21 38-111 2 17 0 0 0 0 0 2 49.6 90 13.9 148.0 37.8
6 1-Feb 1 41 0 1 0 0 0 0 0 0 41.0 100 13.6 146.0 38.2
6 4-Feb 9 32-46 7 2 0 0 0 0 0 0 38.6 100 15.2 153.3 38.9
7 8-Feb 26 37-116 3 5 1 0 0 2 4 11 102.5 31 15.4 149.1 39.3
7 11-Feb 28 37-49 5 23 0 0 0 0 0 0 43.1 100 14.5 167.1 39.5
8 15-Feb 31 34-54 10 18 3 0 0 0 0 0 42.7 90 15.4 155.2 39.8
8 18-Feb 67 37-53 10 49 8 0 0 0 0 0 44.1 88 15.0 157.4 39.4
9 22-Feb 49 39-56 5 35 9 0 0 0 0 0 44.6 82 12.1 126.0 39.6
9 25-Feb 52 37-56 6 41 5 0 0 0 0 0 43.8 90 12.1 121.0 39.6
10 1-Mar 32 39-59 4 22 6 0 0 0 0 0 44.7 81 12.0 120.4 40.2
10 4-Mar 267 34-119 33 100 28 94 11 0 0 1 52.5 50 12.9 140.4 40.6
11 8-Mar 84 35-70 10 28 23 22 1 0 0 0 51.9 45 11.8 121.8 41.5
11 11-Mar 406 1 37-76 44 154 31 65 21 0 0 0 49.9 63 13.5 143.7 42.9
12 15-Mar 1,085 1 37-135 59 252 30 78 25 1 0 1 48.7 70 11.9 123.1 43.6
12 18-Mar 581 1 37-75 48 265 32 26 8 0 0 0 45.6 83 11.9 126.8 44.2
13 22-Mar 515 36-80 57 365 11 43 38 1 0 0 46.8 82 12.2 134.3 44.4
13 25-Mar 1,132 1 34-137 85 519 6 36 73 1 0 3 47.2 84 13.5 135.2 45.1
14 29-Mar 444 1 35-82 70 260 22 28 12 1 0 0 45.3 84 16.6 149.2 45.2
14 1-Apr 661 37-136 80 515 22 16 24 1 0 3 45.1 90 15.8 158.6 45.6
15 5-Apr 1,296 1 38-158 38 291 6 1 1 0 0 8 44.3 95 14.4 151.0 45.8
15 8-Apr 1,423 1 37-77 35 477 50 6 9 0 0 0 44.7 89 12.1 122.1 46.4
16 12-Apr 614 35-174 15 389 88 20 44 50 3 5 52.6 66 14.0 137.6 47.2
16 15-Apr 1,886 1 36-147 40 1,258 198 13 11 18 3 4 46.5 84 14.0 155.0 49.0
17 18-Apr 2,663 1 37-134 37 751 76 5 44 40 6 3 48.0 82 12.1 127.6 49.0
17 21-Apr 2,317 1 35-95 43 788 245 25 39 55 11 0 49.7 69 12.1 129.9 50.0
18 26-Apr 2,171 1 35-128 76 728 70 6 3 4 0 1 44.9 91 15.8 180.4 52.0
18 29-Apr 1,939 1 35-138 78 709 48 1 5 33 8 2 46.2 89 15.8 170.7 53.0
19 3-May 1,698 1 36-188 36 548 168 26 24 61 24 4 52.2 66 16.0 180.5 53.8
19 6-May 911 1 34-210 32 499 97 11 39 81 25 8 53.4 67 17.3 198.8 55.1
20 10-May 778 1 35-142 24 397 224 26 14 26 6 2 51.1 59 19.9 236.7 55.4
20 13-May 413 38-95 6 253 111 18 5 16 4 0 50.5 63 20.4 235.2 56.7
21 17-May 770 1 35-83 15 183 327 29 4 3 0 0 51.5 35 20.4 245.0 57.0
21 20-May 731 1 33-74 18 246 340 21 1 0 0 3 50.5 42 22.0 269.4 57.3
22 24-May 500 1 38-154 8 130 214 116 22 8 2 0 55.8 28 21.6 262.0 57.2
23 1-Jun 736 1 36-85 15 205 222 176 35 5 0 0 55.2 34 18.5 243.4 59.2
23 3-Jun 610 39-97 3 137 203 205 55 6 1 0 58.4 23 18.6 229.9 59.3
24 7-Jun 400 42-101 0 38 115 139 82 18 7 1 64.0 10 16.3 168.0 59.6
25 14-Jun 605 44-114 0 16 124 227 152 35 46 5 68.4 3 16.4 111.1 60.8
25 17-Jun 393 48-99 0 5 52 146 151 31 8 0 69.2 1 15.9 187.7 61.5
26 21-Jun 137 44-95 0 8 22 49 44 11 3 0 67.4 1 17.5 223.1 63.6
26 24-Jun 96 57-95 0 0 8 44 40 3 1 0 69.0 0 17.3 199.6 63.6
27 28-Jun 215   56-93 0 0 5 48 99 57 6 0 74.7 0   16.6 189.1 63.8
28,840 1 1,070 10,758 3,250 1,766 1,136 568 169 69
1  Includes fish that were counted but not sampled.
2  Daily readings taken at 12:00 pm (www.nwd-wc.army.mil/cgi-bin/DataQuery).