Whale Deaths Linked to Toxic Algae Bloom

Two humpback whales discovered deceased on Monterey Bay beaches earlier this month have tested positive for domoic acid. This naturally occurring toxin is produced by harmful algae blooms, which are becoming more prevalent.

Marine heat waves, currently impacting the Pacific Ocean from the Bay Area to San Diego, are believed to be contributing to the worsening of these toxic algae events. While typically affecting smaller marine animals like sea lions and pelicans, these blooms are now clearly impacting larger species.

Experts express concern that the increasing frequency and toxicity of domoic acid events could pose a significant threat to other whales and marine species. The unfolding El Niño conditions are predicted to lead to warmer ocean temperatures through the fall and winter, potentially amplifying these environmental challenges for ocean life.