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2015–2021 Guadalupe Fur Seal Unusual Mortality Event in California, Oregon and Washington

Increased strandings of Guadalupe fur seals have occurred along the entire coast of California, beginning in January 2015 at eight times higher than the historical average. Strandings have continued since 2015 at well above average rates in California. Additionally, Guadalupe fur seal strandings in Oregon and Washington became elevated in 2019 and strandings for these two states have been added to the UME starting from July 1, 2019 to present.