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Species of invasive crab / From Wikipedia, the free encyclopedia
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Green shore crab | |
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Malacostraca |
Order: | Decapoda |
Suborder: | Pleocyemata |
Infraorder: | Brachyura |
Family: | Carcinidae |
Genus: | Carcinus |
Species: | C. maenas |
Binomial name | |
Carcinus maenas | |
![A large male C. maenas, on top of a 5-gallon bucket for scale.](http://upload.wikimedia.org/wikipedia/commons/thumb/2/26/Male_European_Green_Crab_on_Bucket.jpg/640px-Male_European_Green_Crab_on_Bucket.jpg)
![Two female C. maenas.](http://upload.wikimedia.org/wikipedia/commons/thumb/e/e2/Two_Female_European_Green_Crabs.jpg/640px-Two_Female_European_Green_Crabs.jpg)
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Carcinus maenas is a common littoral crab. It is known by different names around the world. In the British Isles, it is generally referred to as the shore crab, or green shore crab. In North America and South Africa, it bears the name European green crab.
C. maenas is a widespread invasive species, listed among the 100 "world's worst alien invasive species".[2] It is native to the north-east Atlantic Ocean and Baltic Sea, but has colonised similar habitats in Australia, South Africa, South America and both Atlantic and Pacific coasts of North America. It grows to a carapace width of 90 mm (3+1ā2 in), and feeds on a variety of mollusks, worms, and small crustaceans, affecting a number of fisheries. Its successful dispersal has occurred by a variety of mechanisms, such as on ships' hulls, sea planes, packing materials, and bivalves moved for aquaculture. [citation needed]