Alewives are considered an important component of healthy rivers within their natural range. But in the St. Croix River that forms the border between Maine and New Brunswick, this native species had its migration blocked by unilateral action of the State of Maine. Now the International Joint Commission has waded in with a letter to Maine's Governor on the need to reopen fish ladders to the alewives.
http://asf.ca/news.php?id=416
