Marine mammal rescue organizations have been swamped with reports of sick and dead sea lions and dolphins along the Southern California coast this month.
LOS ANGELES — Marine mammal rescue organizations have been swamped with reports of sick and dead sea lions and dolphins along the Southern California coast this month, and experts believe a bloom of harmful algae is to blame.
Tissue samples have been collected for tests to confirm the animals are victims of domoic acid, a neurotoxin produced by the algae Pseudo-nitzschia, according to NOAA Fisheries. The toxin enters the food chain and sickens marine mammals as they eat prey. Berman Kowalewski said the dead dolphin count is “definitely the most number of animals we've seen with a domoic acid event” in her 25 years of work.
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