Great Lakes Videos: April 22, 2011 For links to these videos and more, visit http://www.glin.net/news/video Carp alarm sounds Star Tribune (4/20) The arrival of a 27-pound bighead carp in the St. Croix River on Monday triggered alarm among Minnesota Department of Natural Resources officials. Building a replica Mackinaw Boat WPBN-TV - Traverse City, MI (4/19) A local Mackinaw City, Mich. man wants to preserve a major piece of Great Lakes transportation history and he's doing so by his crafty hands and manual tools. Fishing on Lake Superior KVIE Television (3/30) Cold, vast and deep, Lake Superior's virtually an inland ocean and it can be a bit foreboding. But at the far western end of the lake, just north of Duluth, Minnesota, a productive harvest is going on virtually year-round: lake herring, a smokehouse favorite.