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European green crabs are considered to be one of the world’s worst invasive species and a significant threat to the health of Washington’s marine waters.
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 of the World's Worst Invasive Alien Species. [2]
This species can be green, red, or yellow with 2 claws, a saw-like shell, and pointed, hairy back legs. [18] It is smaller than other species, but it is similar in appearance to the native Rock, Jonah, and Lady crabs. [18] [19] The European green crab is dangerous as an invasive species for the aggressive nature in which it inhabits new waters.
A sea otter eyes its lunch, one of two invasive European green crabs it was able to retrieve underwater. Photo taken in 2011 in Moss Landing, CA. Green crabs are originally from Europe and arrived ...
European green crab, European shore crab, green crab, shore crab Invasive in North America, Australia, parts of South America and South Africa. Native to Europe and North Africa. Caulerpa taxifolia: Seaweed Killer algae, killer seaweed Invasive in the Mediterranean Sea. Native to the Indian Ocean. Cecropia peltata: Tree
The crabs are thriving in European environments for a combination of reasons, he explains. Like most invasive species, they have no natural enemies, are opportunistic feeders and are very resilient.
In the British Isles, it is generally referred to simply as the shore crab. In North America and South Africa, it bears the name green crab or European green crab. In Australia and New Zealand, it is referred to as either the European green crab or European shore crab.
An invasive crab that thrives in warmer water is causing a huge problem from coast to coast. Green crabs are coming for our seafood - and climate change may be to blame [Video] Skip to main content