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Mitten CrabWATCH

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California Department of Fish and Wildlife
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Main Project Information
Presented By Smithsonian Environmental Research Center
Goal Track the spread of introduced Chinese Mitten Crabs
Task Report any mitten crab sightings

The Smithsonian Environmental Research Center, working with many partner organizations, has established Mitten Crab Watch as a public reporting and information network to track the distribution, abundance, and status of this invasive species for the US Atlantic and Gulf coasts.

How to Join

Visit to learn how to identify, locate and report mitten crab sightings.

Please provide date, specific location, and size information and a close-up photograph or specimen if possible.

Social Media
Ideal Age Group Elementary school (6 - 10 years), College, Graduate students, Adults, Families
Spend the Time outdoors
Type of Activity While fishing, In oceans, streams, rivers, lakes, On a walk, run
Media Mentions
and Publications
Tags mitten crab
Project Updated 05/23/2018