| Table 23. Pacific Salmon Commission chinook salmon indicator stocks from the Columbia Basin and brood year exploitation rates (%) in combined U.S. and Canada ocean fisheries (PSC 1994b). Rates less than 5% are inferred from low tag recovery rates (Bohn, Oregon Department of Fish and Wildlife, personal communication). | |||||||||
| Stock | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | Average |
|---|---|---|---|---|---|---|---|---|---|
| Cowlitz Fall Tule | 46 | 37 | 40 | 48 | 43 | 39 | 47 | 66 | 46 |
| Stayton Pond Tule | 64 | 63 | 59 | 66 | 59 | 52 | 43 | 55 | 58 |
| Spring Creek Fall Tule | 42 | 38 | 50 | 56 | 48 | 52 | 43 | 57 | 48 |
| Lewis Fall Bright (wild) | 27 | 33 | 23 | 25 | 25 | 24 | 26 | 12 | 24 |
| Upriver Fall Bright | 36 | 42 | 40 | 39 | 42 | 32 | 41 | 37 | 39 |
| Hanford Fall Bright (wild) | 32 | 49 | 31 | 45 | 39 | ||||
| Lyons Ferry Fall Bright | 38 | 37 | 46 | 25 | 27 | 30 | 34 | ||
| Willamette Spring | 24 | 36 | 25 | 16 | 21 | 19 | 21 | 24 | |
| Leavenworth Spring | <5 | <5 | <5 | <5 | <5 | <5 | <5 | <5 | <5 |
| Rapid River Spring | <5 | <5 | <5 | <5 | <5 | <5 | <5 | <5 | <5 |
| Sawtooth Spring | <5 | <5 | <5 | <5 | <5 | <5 | <5 | <5 | <5 |
| McCall Summer | <5 | <5 | <5 | <5 | <5 | <5 | <5 | <5 | <5 |