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Chinese mitten crab
Chinese mitten crab

Scientists Keep Tabs on Exotic Crab

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Biologists are asking people to keep their eyes peeled for another potential invader into the St. Lawrence River. A Chinese mitten crab was found near Quebec City last fall. Like the American Eel, the mitten crab spawns in the ocean, so it's unlikely to proliferate in Lakes Ontario or Erie. But the St. Lawrence may be more welcoming habitat. David Sommerstein spoke with David MacNeill. He's a fisheries specialist with New York Sea Grant Extension in Oswego. He says biologists aren't sounding the alarm yet because one Chinese mitten crab hardly constitutes an invasion. But he says the discovery highlights the failure of ballast discharge rules for foreign ships entering the St. Lawrence Seaway.

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