Ah yeah CM has been on this awhile here.

Maybe the salmon problem isn’t in the rivers; it’s in the ocean

Timothy Schuerch

Special to The Seattle Times

Washington has spent billions trying to restore salmon and save the endangered southern resident orcas that depend on them. So why aren’t the results keeping pace?

Rivers have been restored. Dams modified. Hatcheries expanded. By every traditional measure, Washington is doing the work. Yet Puget Sound Chinook — the orcas’ primary prey — remain fragile, with returns that vary widely from year to year.

What if the real bottleneck isn’t in our rivers, but in the ocean?

For decades, the North Pacific was treated as effectively limitless. Once salmon reached saltwater, survival was thought to depend largely on climate cycles and predation, not competition.

That assumption is beginning to change.

The North Pacific is vast — but it is not limitless. Each year, roughly 5 billion hatchery salmon, mostly pink and chum, are released into the ocean by the United States, Japan, Russia and others. Once in saltwater, these fish mix with wild salmon from Washington, Canada, Alaska and across the Pacific Rim, competing for the same finite food supply.

The scale is easy to overlook. But at some point, abundance itself can become a limiting factor.

A growing body of research, including long-term studies in Alaska and across the North Pacific, suggests that as total salmon abundance rises, individual fish often grow more slowly, return smaller and, in some cases, experience lower survival. Some analyses have also linked large hatchery pink salmon releases to reduced productivity in other species.

These effects are subtle but cumulative: slower growth, smaller fish and more variable returns. They tend to fall hardest on already vulnerable stocks, including Chinook — the fish southern resident orcas depend on most.

For Washington, the implications are immediate. Despite decades of investment, Chinook recovery remains inconsistent; evidence increasingly points to ocean conditions, including competition, as a key limiting factor.

This pattern is not confined to Puget Sound. In Western Alaska, salmon runs on the Yukon and Kuskokwim rivers have collapsed in recent years, forcing severe restrictions on Indigenous subsistence fishing — a cornerstone of cultural food security for generations. While multiple factors are involved, poor ocean survival is widely seen as central.

None of this suggests hatcheries are misguided.

They support tribal, commercial and recreational fisheries and help sustain deep cultural and economic ties to salmon. They were built to offset real habitat loss and they continue to serve that purpose. But they were developed on a key assumption: that the ocean could absorb any scale of hatchery production.

Today, that assumption looks less certain.

The North Pacific increasingly functions like a shared commons — shaped by multiple nations making independent hatchery production decisions, with no mechanism to account for cumulative impacts. And like any commons, it can be overused.

The result is not a sudden collapse, but gradual degradation: smaller fish, less predictable runs and diminishing



zoom-in
A growing body of research, including long-term studies in Alaska and across the North Pacific, suggests that as total salmon abundance rises, individual fish often grow more slowly, return smaller and, in some cases, experience lower survival. Pictured are Coho salmon at the Seattle Aquarium. UNIVERSITY OF WASHINGTON PRESS

returns from even well-funded, well-managed recovery efforts.

Washington did not create this dynamic, and it cannot resolve it alone. But that does not place the issue out of reach.

There is already a forum for coordination: the North Pacific Anadromous Fish Commission, which brings together the United States, Canada, Japan, Russia and Korea to manage high-seas salmon. To date, the cumulative effects of hatchery releases have not been a central focus. That should change.

A practical first step would be to pause further increases in hatchery pink and chum releases across the North Pacific, paired with improved monitoring and clear triggers for adjustment if wild stocks show signs of stress.

This is not about shutting down hatcheries. It is about recognizing limits to the carrying capacity of the North Pacific — and managing hatchery production before those limits begin to constrain the very salmon we are trying to restore.

Washington has made a generational investment in salmon recovery, driven in part by the urgent need to sustain southern resident orcas. But if ocean conditions are already constraining survival, those investments may be approaching the limits of their effectiveness.

Restoration work in rivers and estuaries is not misplaced — it is incomplete.

The question is not whether habitat restoration or hatcheries matter. It is whether we are managing the full system that salmon depend on, including the ocean they share.

The North Pacific is vast, but it is not infinite.

And if we continue to manage salmon as if it were, we should not be surprised if recovery efforts plateau.

Timothy Schuerch is an Alaska Native attorney focused on Indigenous natural resource policy and development. He spent part of his childhood in Gig Harbor.