Welcome to Mitten Crab Watch

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If you catch a mitten crab

  • Do not throw it back alive!
  • Take a close-up photo.
  • Note the precise location where the animal was found.
  • Freeze the animal, keep on ice, or as a last resort preserve it in rubbing alcohol.
  • Please report a mitten crab by submitting information and photos here or email to SERCMittenCrab@si.edu. We will reply to each report and may also ask about any specimens that you may have collected.
  • For other questions, you can also contact the Mitten Crab Hotline at 443-482-2222.