Salix - A search is underway for a Nebraska man who fell overboard Saturday night while boating on the Missouri River near The Port Neal area.  Dustin Pearce, 26, of Homer, Nebraska was in a boat being operated by Curt Harris, 25, also of Homer, Nebraska, when Pearce fell overboard and could not be located.  The emergency call was placed at 9 pm Saturday.   The Iowa Department of Natural Resources, Nebraska Fish and Game and the U.S. Coast Guard Auxiliary were continuing the search on Sunday.