PORTLAND, Maine (AP) -Scallop season has arrived! The season lasts for 70 days for most fisherman, but fishermen in the scallop-rich waters of Cobscook Bay along the Canadian border in far eastern Maine will be limited to a 50-day season. The season opened Monday in three zones from Kittery to Lubec. Maine’s scallop fishermen operate under a regulatory system that divides the state into three zones with restrictions and closures in a number of areas. Those restrictions and closures allow scallops to replenish. Marine Resources Commissioner Patrick Keliher says the restrictions have been challenging but they are working. Fishermen last year hauled in 2.4 million pounds, the best harvest in a decade. The catch was worth $3.2 million.