In the Song (960--1279) the laver of Pingtan in Fujian was added to the list of tribute items. A poem by Mei Yaochen (1002--1060) describes how the fisher folk of his time made bamboo enclosures along the seashore to raise oysters, and how the little oysters thrived amid the briny waves.
宋代福建平潭的紫菜也被納入貢品，詩人梅堯臣一首詩寫當時漁民沿海圍竹養蠔，隨著海水鹽分沖激掏洗，小牡蠣也日漸增長。