紫菜(Porphyra)属红藻纲,红毛菜科。我国北方沿海养殖面积逐年扩大,养殖效益高,养殖品种以条斑紫菜(P.yezoensis)为主。现把紫菜养殖与加工技术介绍如下。1养殖前的准备工作1.1选址养殖紫菜的海滩应平缓起伏,落差变化小,水下暗流冲刷轻,水深在10m以上最好,距离弱水线近,水质清新交换好,营养盐丰富,杂藻含量少,底质属沙质, Porphyra is a class of Rhodophyceae, Brachycaceae. China’s northern coastal aquaculture area has been expanded year by year, breeding high efficiency, breeding species Porphyra yezoensis (P.yezoensis) dominated. Now seaweed farming and processing technology are as follows. 1 Preparation before breeding 1.1 Sea laver breeding site should be gentle fluctuations, small changes in the gap, the light undercurrent scouring light, water depth of 10m above the best, from the weak water line near the exchange of fresh water quality, nutrient-rich, miscellaneous Algae content is less, the sediment is sandy,