Regulators may cancel the upcoming northern shrimp season in the Gulf of Maine because of a decline in the shrimp population from overfishing and poor environmental conditions, dealing a blow to fishermen in Massachusetts and other states.

An Atlantic States Marine Fisheries Commission board is set to meet Monday to decide on plans for the 2013 season. Last month, another group, the Northern Shrimp Technical Committee, recommended a moratorium on catching the shrimp next year. If not a cancellation, the group suggested a “highly conservative approach” with a shortened fishing season.