Alewives counted one-by-one on some Maine rivers

FishLadders_09The alewife, which returns from the Atlantic each spring to spawn in lakes and ponds, has had a drastic drop in population from its southernmost habitat in North Carolina all the way into Newfoundland. Scientists believe that alewives’ loss of spawning habitat, to dams and hydroelectric facilities, is a major factor in the decline of the species, along with predators, overfishing and other factors. Read more here 09:20