Protests and blockades in Canada over low lobster prices are rekindling memories of last summer when Canadian fishermen angrily blocked truckloads of Maine-caught lobsters from being delivered to processing plants. But those in the lobster industry in Maine are not expecting a repeat of 2012. More than 2,000 lobstermen in New Brunswick, Prince Edward Island, Nova Scotia, and Quebec tied up their boats over the past week in protest, and some blocked lobster shipments at processing plants. The protests have no direct connection to Maine, where the lobster catch is light this time of year. Maine Lobstermen’s Association executive director Patrice McCarron said a recurrence of last summer’s events in Canada is not expected.