Maine's Atlantic Salmon in "Trauma Mode"

In the past decade the number of Atlantic salmon returning to eight Maine rivers where their population is endangered has fallen by half. “All Atlantic salmon in Maine are doing poorly, but scientists are particularly worried about the population in the eight rivers because their gene pool is believed to be the least diluted and their survival offers the best chance to restore Maine’s historic wild salmon runs, with fish leaping upstream to return to their ancestral spawning grounds.” Beth Daley in the Boston Globe.