European Green Crab (Carcinus maenas)

The European green crab (Carcinus maenas) has spread far beyond its native continent, to waters off North and South America, Asia and Australia. It's a voracious eater and poses a nuisance to shellfish farmers. Invasive species have various means of reaching new habitats. Read about the role ships play in spreading invasive species.

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A photo of a solitary European green crab on a sandy substrate.
Filip Nuyttens, World Register of Marine Species

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