In the Sui dynasty (581--618) the Grand Canal was opened, and this accelerated cultural and economic exchange between north and south. Hubei and Hunan, and the river and lake country south of the lower Yangtze and in Guangdong and Guangxi, supplied all kinds of aquatic produce to other regions.
隋朝開大運河，南北文化、經濟交流更頻繁，兩湖地區與江南、嶺南水網地帶更提供了各式水產。