A parasite that thrives in warm conditions adds to Yukon River salmon woes

Stan Zuray first noticed unusual symptoms like white spots and a sour watermelon smell in Chinook salmon from the Yukon River in the 1980s, hinting at a growing problem. By the 1990s, the issue had worsened, leading many to stop fishing in that area. This decline is now attributed to a parasite thriving in warmer waters, exacerbating the salmon population's troubles. Such changes are crucial as salmon are vital for local ecosystems and economies, highlighting the broader impact of climate change on wildlife and fisheries.