All data are for winter steelhead. Summary of estimated total run size and escapement, trends in total escapement, and proportion of hatchery fish in escapement for the Middle Columbia River steelhead evolutionarily significant unit, by major river basin, as in Table 10 . Summary of estimated total run size and escapement, trends in total escapement, and proportion of hatchery fish in escapement for the Upper Columbia River steelhead evolutionarily significant unit, by major river basin, as in Table 10 . All data are for summer steelhead. Summary of estimated total run size and escapement, trends in total escapement, and proportion of hatchery fish in escapement for the Snake River Basin steelhead evolutionarily significant unit, by major river basin, as in Table 10 .
All data are for summer steelhead.