PORTLAND — A cruise ship docked in Portland Harbor will leave with a load of Maine lobsters.

The Celebrity Summit took delivery Monday of lobsters from Ready Lobster. All told, Celebrity Cruises has contracted for a total of 3,800 pounds of Maine lobster this year; Norwegian Cruise Lines has agreed to buy another 5,000 pounds when its ships call on Portland this fall.

The cruise line purchases are good news for Maine’s lobster industry, which has suffered from rock-bottom prices this summer because of an oversupply of lobsters.

U.S. Rep. Chellie Pingree, who was on hand Monday, wrote to the CEOs of all the cruise ship companies visiting Maine, urging them to buy local lobster.