"One of the largest, longest, and most lethal." Officials share update after lethal threat terrorizes West Coast beaches: ...

Thurston County has issued a health advisory for Offut Lake, shown here. Thurston County is warning the public to avoid Offut Lake and Lake Lawrence due to toxic algae blooms. Staff from the ...

Noelle Held, a USC microbiologist and oceanographer, collects a water sample at Surfrider Beach on June 1. (Hon Wing Chiu / For The Times) When scores of dead and dying sea animals began washing up on ...

An algae bloom in the North Fork arm of Lake Oroville has dissipated after several weeks, according to a community update ...

Blue-green algae, or cyanobacteria, are naturally occurring in ecosystems. Under certain conditions like warmer temperatures ...

Scientists are worried about the winter fishing season as well as the effects of federal government cuts to agencies.

Neurotoxin levels were highest in the dolphins stranded during warmer months, when harmful algal blooms are more severe.

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The California Department of Fish and Wildlife has delayed the opening of commercial crabbing season statewide to protect ...

Colonies of fast-growing algae and bacteria have struck at least 460 lakes, ponds and streams in the United States this year — blooms that killed cattle and dogs and closed beaches from California to ...