Preliminary Studies on Diatoms from Chongming East Beach
崇明东滩硅藻植物初报

We investigated 110 diatom taxa（including 105 species,5 varieties） from Chongming East Beach,which belonged to 52 genera and 7 families.Among these,7 species and 1 variety were new records in China,specifically,Cyclotella plitvicensis Hust.,Pleurosira minor Metz.,L.-B. Garc.-Rodr.,Eunotia minor（Kütz.） Grun.,Achnanthes elata（Leud.-Fortm.） Gandhi,Pinnularia flexuosa Kram.,Pinnularia subgibba var.sublinearis Walth. Massach.,Navicula normaloides Choln.,and Nitzschia pellucida Grun.The characteristics of the diatoms ecological distribution are discussed.