Table 4.
Estimated mean final carcass biomass (on February 28), in kg dry weight, for hypothetical chum salmon runs under the 12 combinations of climate conditions (by decade, model, and site). Parenthetical values are proportions relative to the Hamma Hamma River value within each model/decade combination.
| Model/site | 1970s | 2050s | ||
|---|---|---|---|---|
| ECHAM5 | ||||
| Skagit | 17,884 | (0.81) | 13,069 | (0.79) |
| Hamma Hamma | 22,074 | (1.00) | 16,592 | (1.00) |
| Nisqually | 14,548 | (0.66) | 11,016 | (0.66) |
| CCSM3 | ||||
| Skagit | 11,170 | (0.92) | 9771 | (0.94) |
| Hamma Hamma | 12,101 | (1.00) | 10,352 | (1.00) |
| Nisqually | 9881 | (0.82) | 8089 | (0.78) |