Maryland officials are offering to buy back commercial fishing licenses as crabbing season gets rolling today. The state Department of Natural Resources last month mailed the buyback offers to 2,258 with unlimited crab harvester or tidal fishing licenses. Their bids range from a base of $4,000 for a crab harvester license to $12,000 for a tidal fishing license. Officials say they are trying to ease possible fishing pressure on Chesapeake Bay’s crab population.