Biologists are fairly sure that they've discovered the alewife (Alosa pseudoharengus) in Lake Champlain, according to this report from TheChamplainChannel.com. It is suspected that the non-native fish traveled from a known population in the St. Lawrence River, via the Richelieu River. This would be the second body of water in Vermont in which the fish has been discovered, the first being Lake St. Catherine in the late 1990's (read a management report here (.pdf)). The alewife, while native to the Atlantic coast of the U.S., has been accidentally or intentionally introduced to many freshwater lakes.
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