| Table 1. Estimates of upstream adult survival (conversion) rates for Spring Chinook for the Lower Columbia and Snake River Reaches. | ||||
| Year | BON-MCN | MCN Pool | IHR-LGR | Total BON- LGR |
|---|---|---|---|---|
| 79 | 0.51 | 0.86 | 0.83 | 0.37 |
| 80 | 0.42 | 1.01 | 0.69 | 0.29 |
| 81 | 0.61 | 1.13 | 0.88 | 0.61 |
| 82 | 0.49 | 1.00 | 0.88 | 0.43 |
| 83 | 0.75 | 0.84 | 0.81 | 0.50 |
| 84 | 0.66 | 1.01 | 0.83 | 0.55 |
| 85 | 0.85 | 1.09 | 0.82 | 0.76 |
| 86 | 0.81 | 0.97 | 0.84 | 0.66 |
| 87 | 0.85 | 0.93 | 0.94 | 0.74 |
| 88 | 0.79 | 1.04 | 0.89 | 0.73 |
| 89 | 0.63 | 1.00 | 0.82 | 0.51 |
| 90 | 0.79 | 0.89 | 0.88 | 0.62 |
| 91 | 0.66 | 1.05 | 0.69 | 0.48 |
| 92 | 0.85 | 1.03 | 0.87 | 0.76 |
| 93 | 0.81 | 1.13 | 0.87 | 0.80 |
| 94 | 0.77 | 1.04 | 0.91 | 0.73 |
| Averages | ||||
| 1979-94 | 0.70 | 1.00 | 0.84 | 0.60 |
| 1990-94 | 0.77 | 1.06 | 0.83 | 0.69 |