Chinook Salmon Spawning Ground Surveys Below Bonneville Dam, 2016-17.
Survey Area Date Lives* Dead** Redds***  
Ives/Pierce Island Complex 9/20/16 0 0 0 12 ft. vis.
9/22/16 0 1 0 12 ft. vis.
9/26/16 0 0 0 12 ft. vis.
9/30/16 0 1 0 12 ft. vis.
10/3/16 0 0 0 12 ft. vis.
10/7/16 0 0 0 10 ft. vis.
10/12/16 1 1 0 8 ft. vis.
10/14/16 No survey - High winds NC
10/17/16 No survey - High winds NC
10/21/16 175 0 0 11 ft. vis.
10/24/16 134 0 18 10 ft. vis.
10/28/16 959 0 271 12 ft. vis.
10/31/16 408 9 0 8 ft. vis. Counting conditions were poor
11/1/16 1380 12 190 10 ft vis.
11/8/16 2911 302 1386 8 ft. vis.
11/15/16 1311 686 876 7 ft. vis. Counting conditions were poor due to wind and sun glare
11/22/16 799 313 855 10 ft. vis.
11/29/16 122 79 0 10 ft. vis.
12/6/16 89 5 0 8 ft. vis.
12/13/16 NS NS NS snow blocked access to boat ramp
12/20/16 3 0 NS 4 ft. vis.
*Lives may include jacks 12/27/16 0 0 0 6 ft. vis.
**Dead are newly sampled fish only
***Redds are an instantaneous count for the day, not cumulative.
NS=not surveyed