The recovery of Atlantic salmon on the Penobscot River likely depends on a return of healthy populations of alewives, blueback herring, American shad and other sea-run species. An article in Fisheries (Nov. 2006) explores the historic and current abundance of five species of sea-run fish that are considered to provide important ecological functions that support the different life stages of salmon (for example, migration of adult alewives to inland spawning habitat most likely provided an alternative source of food for known predators of out-migrating Atlantic salmon smolts). Select link to read more... Fisheries, November 2006