Timber harvest may have both direct and indirect effects on salmon, and with
a few exceptions those effects result in lowered survival of salmon in their
stream habitats compared with unlogged forest (Hicks et al. 1991b). Some
impacts may be seen immediately or shortly after logging, whereas others can
take decades to be expressed. Central to analyzing these effects is the context
of the freshwater environment in which salmon are spawned and reared, and
the life histories of the salmon species. This chapter will examine the effects of
timber harvest on the freshwater habitat and life stages of salmon. It will also
investigate the hypothesis that the salmon species least affected by timber
harvest are those with the least reliance on stream habitats
