Juky 24, 2026 — When 26-year-old Tirzah Bryant was a kid, she knew how to watch the cottonwood trees along the Yukon River for the sign that it was time to fish for salmon.

“We know that the fish are coming when the cotton’s flying from the cottonwood,” she said.

But run collapses and successive fishing closures along the river have rendered the cottonwood signal meaningless.

“I remember that first summer that we couldn’t fish, watching the cotton flying and being like …what it felt like, I was drifting. I’m like, ‘What am I doing?’” she said. That drifting feeling includes interactions with members of her extended family who had moved to cities but used to gather in Galena during fishing season. “They don’t have a reason to come home now,” she said.

Bryant described that odd feeling during a presentation in March at an Anchorage tribal environmental conference. A 2025 graduate of the University of Alaska Fairbanks’ Center for One Health Research master’s degree program, which focuses on the human-animal-environmental health connections in Alaska and the Arctic, she described the One Health concept as fitting perfectly with her family’s traditions.

“Everything is related. So a healthy environment equals healthy animals, which equals healthy humans,” said Bryant, who also holds a biology degree from UAF and is now the environmental and education coordinator for the Louden Tribe, the Galena-based tribal government.

That makes the collapse of runs in the Yukon River — where Indigenous residents’ culture is tied to communal salmon harvesting, preparation and eating — “very detrimental to our people,” she said.

On the Yukon River, salmon runs that used to support a thriving and lucrative commercial harvest have collapsed. The runs of Chinook, also called king salmon, that have been in steady decline since the early 2000s, took a nosedive in recent years; by 2022, Chinook abundance was down 81% below its long-term average, according to fishery biologists. Harvest closures that began in 2020 were extended, and in 2024 an Alaska-Canada agreement established a seven-year moratorium on Chinook salmon fishing in the river to preserve Canadian-origin stocks.

Runs of chum salmon, a species that is generally more abundant in the river, suffered a similar but more sudden crash. A series of chum-harvest closures, even for subsistence purposes, started in 2020, and by 2022 abundance had fallen 92% below the long-term average.

Several factors, working in combination, are blamed for the declines. Scientists cite multiple climate change effects in both the ocean and freshwater bodies used by salmon. Those changes have not only affected the raw numbers of fish but also contributed to the shrinking size of salmon, resulting in smaller egg loads carried to spawning grounds by females.

Other factors cited are interceptions at sea by trawlers targeting groundfish species like pollock, changes forced by increasing loads of Asian hatchery fish in the ocean, past fishery management practices and the parasite Icthyophonus, which thrives in warmer conditions and has a more detrimental effect on Yukon Chinook than on any other type of salmon.

Salmon-protection activists say there is not much that can be done in the short term in Alaska to address those factors, other than to adjust fishery management to cut down on at-sea interception, also known as bycatch.

Read the full article at Alaska Beacon