Thalassiosira delicatula Ostenfeld in Borgert 1908

A = Chain (arrow=Nitzschia sp.) (DIC); B = Frustules (arrow=occluded process, arrowheads=strutted processes) (SEM)

Valve (SEM)

Synonym(s): T. coronata Gaarder 1951

Life-form: Cells united in chains

Size: Diameter 9-30 µm

Resting spore:

Note: non T. delicatula Hustedt

Distinctive features: High pervalvaraxis and with occluded processes

Similar species:

Distribution: Worldwide

Gaarder, K. 1951. Bacillariophyceae from the "Michael Sars" North Atlantic deep-sea expedition 1910. Rep. Sci. Res."Michael Sars" n. Atlant. Deep-sea Exp. 1910, 2(2): 1-36

Hasle, G. R. 1980. Examination of Thalassiosira type material: T. minima and T. delicatula (Bacillariophyceae). Norw. J. Bot. 27: 167-173.

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.

  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