Maine removes 60-year-old river barrier to help Atlantic salmon return

source https://timesofindia.indiatimes.com/science/wildlife/maine-removed-a-60-year-old-river-barrier-where-only-about-25-wild-adult-atlantic-salmon-return-each-year-a-new-nature-like-fishway-aims-to-reopen-migration-routes/articleshow/134383952.cms