MARQUETTE — The Ashtabula was expected at 7 a.m. today at the Lake Superior & Ishpeming ore dock in Marquette’s Upper Harbor. The Great Lakes Trader is due at 9 p.m. Sunday. Expected at 7 a.m. Monday is the Honorable James L. Oberstar. The Lee A. Tregurtha is due at 2 a.m. Tuesday and the Michipicoten is expected at 2 a.m. Thursday.