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Marine Disease Devastates Sea Urchin Populations in Atlantic

12/11/2025

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Story summary
  • A marine disease threatens sea urchins, especially Diadema africanum, with drastic declines in the Canary Islands and Madeira.
  • Since 2021, Tenerife's sea urchin population declined by 99.7%.
  • Caribbean regions and other areas report mass sea urchin deaths.
  • Iván Cano, a researcher, warns of ecological impact and cautions the cause remains unclear.
  • The outbreak has not spread to Southeast Asia or Australia.