The new spreading conchospores ot Porphyra yezoensis, P. haitanensis and P. katadai var. hemiphylla are induced by N-Methy-N'-Nitro-N-Nitrosoguanidine (NG),
Based on the assumption of global sea level rising between 30 and 100 cm in the future 100 years by IPCC (1990) in addition to the effect of local ground subsid