Time series of total annual releases of hatchery reared steelhead into the Skagit River

The dataset includes the time series of total annual releases of hatchery reared steelhead smolts into the Skagit River. Totals include onsite well as offsite releases. Releases have been lagged 2 years to coincide with the predominant 2 year freshwater smolt outmigration age of wild steelhead (i.e., brood year + 2).