Test results of the juvenile humpback, stranded on Jan. 24 in Huntington Beach​, and on the minke stranded on April 6 in Long Beach​, confirmed high levels of domoic acid.

Researchers say a minke whale found in the Port of Long Beach and a young gray whale in Huntington Beach both died due to domoic acid toxicity. This comes as dozens of marine animals, including an unprecedented number of dolphins,

One of the largest harmful algae blooms recorded along the Southern California coast has led to the illness and death of thousands of marine mammals and birds in recent months.