U.S. Dept Commerce/NOAA/NMFS/NWFSC/Publications
Figure 6.--Trends in Illinois River winter steelhead (IRWS) catch. A) Estimated IRWS angler catch.
B) Ratio of IRWS catch to total Rogue Basin steelhead catch (diamonds, left axis) and to
total statewide steelhead catch (squares, right axis) (ODFW 1980, 1992b).
Figure 7.--Indices of adult returns per spawner for Illinois River winter steelhead. Returns per
spawner were calculated as the ratio of angler catch in year t+4 (squares) or t+5
(diamonds) to angler catch in year t (parental run year). The horizontal dashed line is
the replacement line (ODFW 1980, 1992b).
Figure 8.--Estimated steelhead angler catch for Rogue, Applegate, and Chetco Rivers. Both winter run
(black) and summer run (shaded area) catch are illustrated (ODFW 1980, 1992b).
Figure 9.--Estimated winter steelhead angler catch for the Elk, Pistol, and Winchuck Rivers (ODFW
1980, 1992b).
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