algae bloom algae bloom

Bangs Island Mussels worker Jon Gorman sets juvenile mussels onto a rope that will be their home for the next year as they grow to market size. Fred Bever/Maine Public Radio hide caption

toggle caption
Fred Bever/Maine Public Radio

Dungeness crabs for sale at Fisherman's Wharf in San Francisco. California's Dungeness crab season was shut down in 2015, when record high ocean temperatures and lingering toxic algae blooms raised the domoic acid in shellfish to unsafe levels. A new study links dangerously high levels of the neurotoxin to warmer ocean temperatures, suggesting such closures could become more common in the future. Eric Risberg/AP hide caption

toggle caption
Eric Risberg/AP

Officials found the toxin microcystin in the blue-green algae present at Discovery Bay, Calif. For people exposed to the toxin, symptoms include dizziness, rashes, fever, vomiting and in more unusual cases, numbness. Lesley McClurg/KQED hide caption

toggle caption
Lesley McClurg/KQED

Poisonous Algae Blooms Threaten People, Ecosystems Across U.S.

  • Download
  • <iframe src="https://www.npr.org/player/embed/491831451/491848138" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Paul Herringshaw says farmers like him have been taking steps to reduce crop runoff for years. Sarah Jane Tribble/WCPN hide caption

toggle caption
Sarah Jane Tribble/WCPN

Lake Erie's Toxic Bloom Has Ohio Farmers On The Defensive

  • Download
  • <iframe src="https://www.npr.org/player/embed/338936920/338948769" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript