Thalassiosira weissflogii (Grunow) G. Fryxell et Hasle 1977

A-C = Cleaned valves (arrowheads=labiate process) (A=PC, B&C=DIC); D = Cleaned valve (SEM)

Culture (DIC)

Synonym(s): Micropodiscus weissflogii Grunow in van Heurck 1880-1885 , Thalassiosira fluviatilis Hustedt 1926

Life-form: Solitary (chains)

Size: Diameter = 5-32 µm

Resting spore:

Note: Found at localities with low salinities

Distinctive features: Meshwork on valve (SEM) and ring of central strutted processes

Similar species:

Distribution: Widely

Fryxell, G. & Hasle, G. R. 1977. The genus Thalassiosira: Some species with a modified ring of central strutted processes. Beih. zur Nova Hedwigia. 54: 67-89.

Hasle, G. R. & Syvertsen, E. E. 1996. Marine diatoms. In: Tomas, C. R. (ed.) Identifying marine diatoms and dinoflagellates. Academic Press, Inc., San Diego, p. 5-385.

Takano, H. 1990. Diatoms. In "Red tide organisms in Japan-An illustrated taxonomic guide". (Y. Fukuyo, H. Takano, M. Chihara & K. Matsuoka eds). Uchida Rokakuho, Tokyo, p. 162-331.

  Copyright © 1996-2006, Mats Kuylenstierna & Bengt Karlson All rights reserved.
Last modified on 15 September, 2006

Swedish Meteorological and Hydrological Institute

Department of Marine Ecology, Göteborg University, Sweden