U.S. Dept Commerce/NOAA/NMFS/NWFSC/Publications
Figure 18. Spawning escapements for odd- and even-year pink salmon
populations in Washington. For each population, an exponential trend
line is fitted to the spawning escapements (see Tables 8 and 9 for
statistical significance of trend estimates). All populations are
odd-year except for Snohomish River pink salmon. In the Nisqually
River from 1981 to 1985 and in 1993, escapements were not estimated
and a value of 500 was assigned for each of these years for run
reconstruction. Escapements in the Elwha River in 1977 and 1979 were
assumed to be 14.25% of the Dungeness River escapement (see text for
discussion).