Original paper

Navicula meulemansii sp. nov., (Bacillariophyaceae) from brackish waters in Europe and the U.S.A.

Mertens, Adrienne; Witkowski, Andrzej; Lange-Bertalot, Horst; Ribeiro, Lourenço; Rhiel, Erhard

Abstract

The new species Navicula meulemansii A. Mertens, Witkowski et Lange-Bertalot sp. nov. is described after study by light microscopy and scanning electron microscopy. Based on new morphological information, the relationship with other taxa is discussed. Navicula meulemansii has a wide geographical distribution in coastal brackish waters (The Netherlands and Germany), European estuaries (Tagus, Portugal), and the San Francisco Bay in California (U.S.A.). Evidence suggests that N. meulemansii has a very broad ecological tolerance, similar to other cosmopolitan species such as Planothidium delicatulum, Navicula gregaria and Nitzschia palea.

Keywords

brackish waterdiatoms (bacillariophyceae)high conductivity waternaviculanew species