The number of fish contacted (C) is computed by multiplying the oceanwide abundance of the SRWC age-3 cohort by the contact rate:
Coded-wire tag recovery data from ocean and river sampling programs were used in cohort reconstructions for SRWC to estimate contact and impact rates in ocean fisheries for the years 2000-2012, following the methods described in O'Farrell et al.
It was implicitly assumed that contact and impact rates estimated from tagged, hatchery-origin fish are representative of the natural-origin SRWC population.
To infer contact rates per unit of effort for these strata, we used historical SRWC harvest data derived from marked (fin-clipped) natural-origin fish from the brood years 1969-1970 that were recovered in ocean fisheries as age-3 fish during the calendar years 1971-1972 (CDFG (8)).
The proportion of SRWC expected to be of legal size for retention was determined on the basis of a size-at-age model derived for SRWC, described in O'Farrell et al.
14 for the recreational sector, reflecting the conventional values used for the annual assessment of SRWC and other Chinook salmon stocks (PFMC (4)).
Simulation of SRWC production on agricultural land using FASOM requires the introduction of SRWC production possibilities.
acreage allocation to SRWC fiber farming) and regional supply and demand equilibrium of forest and agricultural products.
Cropland, pasture land, animal-unit-month grazing, and irrigation water availability are modeled, including the allocation of cropland to SRWC for fiber farming.
Yield, rotation length, and cost estimates for SRWC hybrid poplar plantings (Tables 1,2, and 3) are based on data from the U.
Ince's (10) preliminary analysis generally indicated that there could be some potential for SRWC demands, given marginal shifts in the outlook for pulpwood supply and demand in general.
The future outlook for SRWC acreage by region and decade as projected by FASOM is displayed in Figure 1.