Reuters: The number of baby lobsters in the Gulf of Maine has dropped by half since 2007, a phenomenon that has puzzled scientists as the population of adult lobsters remains near a record high, contributing to robust catches. Scientists note that baby lobsters take eight years to reach harvestable size, meaning the dip could yet be felt by the state’s 4,200 lobstermen, who last year hauled in a record catch worth $365 million, representing nearly 70 percent of Maine’s total seafood harvest. Despite the…