This indicator evaluates the abundance and trend of the 32 steelhead populations by measuring the number of natural-origin adult fish on the spawning grounds of three Puget Sound regions. Abundance estimates here do not include hatchery-origin fish or steelhead taken in harvest or by predators like orcas. The indicator is intended to reflect the goal of achieving wild population recovery of Puget Sound steelhead, which are federally listed as threatened.
Annual percent change in steelhead spawner abundance from 2007 (year of Endangered Species Act listing) to 2023 for 12 Puget Sound populations, shown by geographic region. Abundance data were not available at the necessary spatial scale for other Puget Sound steelhead populations. The lines show the 25th to 75th credibility intervals (CIs). CIs represent a range of values the true annual percent change likely falls within. CIs for all populations contain zero, suggesting no statistically significant change in spawner abundance from 2007 to 2023.
No targets are currently set for this indicator.