Fishing in Sudan is largely carried out by the traditional sector for subsistence, although a number of small operators also use the country's major reservoirs and the rivers to catch fish for sale locally and in nearby urban centers. There are also some modern fishing ventures, mainly on Lake Nubia and in the Red Sea. The quantity of fish, crustaceans, and mollusks caught in Sudan in recent years amounted to between 57,000 tonnes in 2002 and 2006 and 72,000 tonnes in 2010. Aquaculture production reached a high of 1,950 tonnes in 2007.