06/26/2026
Recent and troubling news from up North: Hundreds of Chinook salmon have died in California's Klamath River watershed after a sharp increase in the deadly parasite (Ceratonova shasta).
During the 2026 outmigration season, nearly half (46%) of the salmon tested by wildlife officials were infected - more than double the rate seen in 2025!
The parasite spreads naturally through freshwater worms and can cause severe illness and death in salmon, raising concerns for already vulnerable fish populations.
While Ceratonova shasta poses no risk to human health, its growing presence highlights the ongoing challenges facing Pacific Northwest salmon and the urgent need to protect and restore healthy river ecosystems.
Photo credit: Austin Demarest/USFWS