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A hunger for anchovies is killing off endangered salmon

Winter-run Chinook salmon numbers are at the lowest they've ever been. But scientists say it's not because of high temperatures or the historic drought. Instead, they say, it's their diet.

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Something was killing baby salmon Scientists traced it to a food-web mystery

Something was killing baby salmon. Scientists traced it to a food-web mystery Susanne Rust © (Heather Bell / UC Davis) A tray at the Livingston National Fish Hatchery near Shasta Dam contains offspring of endangered female winter-run Sacramento River chinook salmon that scientists injected with thiamine, also known as vitamin B1. A puzzling deficiency of the vitamin is afflicting baby salmon in California. (Heather Bell / UC Davis) The biologists working in a fish hatchery near Shasta Dam grew increasingly concerned last year when newly hatched salmon fry began to act strangely swimming around and around, in tight, corkscrewing motions, before spiraling to their deaths at the bottom of the tanks.

Farallon islandsUnited statesShasta damLos angelesSacramento riverDon tillittBaltic seaChristiaan eijkmanClifford kraftRachel johnsonTravis websterLos angeles timesWildlife serviceWildlife service staffStockholm universityCornell university

Something was killing baby salmon Scientists traced it to a food-web mystery

Something was killing baby salmon Scientists traced it to a food-web mystery
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Farallon islandsUnited statesShasta damLos angelesSacramento riverDon tillittBaltic seaChristiaan eijkmanClifford kraftRachel johnsonTravis websterLos angeles timesWildlife serviceWildlife service staffStockholm universityCornell university