近年来,江苏省南通市条斑紫菜养殖发展很快,到2002年上半年为止,全市养殖面积已达创记录的4400hm~2,比上年增长37.5％,已成为全国最大的紫菜养殖基地。同时,条斑紫菜贝壳丝状体培育面积全市去年又达70000m~2,比上年增加近10000m~2。但是,因各紫菜育苗场技术水平参差不齐,常有育苗失败的现象发生,影响了当年紫 In recent years, Nantong City, Jiangsu Province Porphyra culture developed rapidly, until the first half of 2002, the city’s aquaculture area has reached a record 4400hm ~ 2, an increase of 37.5% over the previous year, has become the country’s largest seaweed breeding base. At the same time, the area of ​​filamentous body of Porphyra yezoensis reached 70000m ~ 2 last year, an increase of nearly 10000m ~ 2 over the previous year. However, due to uneven technical level of the seaweed nursery, often the phenomenon of failed seedling, affecting the purple