崇明东滩硅藻植物初报

Preliminary Studies on Diatoms from Chongming East Beach

摘要: 报道了2008年3月采自崇明东滩的硅藻植物共110个分类单位,包括105种5变种,隶属于2纲7目52属,其中7种1变种为中国新纪录:星形小环藻Cyclotella plitvicensis Hust.、较小侧链藻Pleurosira minor Metz.,L.-B. & Garc.-Rodr.、较小短缝藻Eunotia minor(Kütz.)Grun.、狭长曲壳藻Achnanthes elata(Leud.-Fortm.)Gandhi、弯曲羽纹藻Pinnularia flexuosa Kram.、近弯羽纹藻近线性变种Pinnularia subgibba var.sublinearis Walth. & Massach.、常态舟形藻Navicula normaloides Choln.和透明菱形藻Nitzschia pellucida Grun.。对崇明东滩硅藻的种类分布、生态特征进行了分析。

Abstract: 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.