Bob Hanten

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FILE - In this April 20, 2007 file photo, a fishing boat trolls near the intake structure just above the dam on Lake Oahe near Pierre, S.D. Wildlife officials are considering adding Atlantic salmon to Lake Oahe. South Dakota Game, Fish and Parks biologist Bob Hanten says that Atlantic salmon have a number of advantages over the Chinook salmon currently in the lake. He says the overall goal is to increase the number of salmon that anglers catch on the Missouri River reservoir in South Dakota and North Dakota. (AP photo/Chet Brokaw, File)