Salmon & Steelhead Recovery Tracker

Calapooia River (Independent Population)

Calapooia River Independent Population

Oncorhynchus tshawytscha

Abundance

Annual estimates of the abundance of naturally-produced spawners for Upper Willamette River populations.

Spawning Year Wild Adult Count Nat. Origin Spawners 95% Confidence Interval Abundance Goal Average Abundance

Average Abundance

Twelve years of data are necessary to evaluate this metric. Data will become available after a suitable number of years of monitoring have occurred.

Spawning Year Average Abundance Avg. of Ab.Goal

Hatchery Proportion

The proportion of spawning fish that are of hatchery origin in Upper Willamette River populations.

Spawning Year Proportion Hatchery

Average Hatchery Proportion

Nine years of data are necessary to evaluate this metric. Data will become available after a suitable number of years of monitoring have occurred.

Spawning Year Proportion Hatchery 9-yr. pHOS Avg. pHOS Limit