ScienceDaily.com: Are Invasive Species Bad? Not Always, Say Researchers

Nice neighborhood Cordgrass and ribbed mussels along East Coast cobbled
beaches provide shade and protection for the invasive Asian shore crab.
Photo credit: Andrew Altieri/Brown University
beaches provide shade and protection for the invasive Asian shore crab.
Photo credit: Andrew Altieri/Brown University
In 1988, a mysterious invader washed upon the New Jersey shore. The Asian shore crab likely arrived in ballast from commercial ships, and it found its new home to be quite agreeable. More than two decades later, the crab, Hemigrapsus sanguineus, has expanded its range along the Atlantic coast northward to Maine and southward to North Carolina. Its numbers continue to expand, and wildlife biologists have found them in greater densities along New England's cobbled shores.




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