Fig. 2. Vessels sell dogfish to licensed dealers from Maine to North Carolina. Product is sold to four major processors in the Northeast. Until recent concerns altered the dogfish
market, processors sold belly and back flaps to buyers in the European Union, while leather and fins were sold to Asian markets. Processors then sent gurry to Gloucester,
Massachusetts for use in nutraceuticals and fertilizer. Concentration of average landings revenue is illustrated using methods described in DePiper (2014).