Chaetoceros anastomosans Grunow var. externa (Gran) Hustedt 1930

Chains (DIC)

Chains with chloroplasts and resting spores

Synonym(s): Chaetoceros externum Gran 1897

Life-form: Cells united in chains

Size: Diameter = 6-20 µm

Resting spore: +


Distinctive features: Setae of neighbouring cells connected with 0.5-2 µm long silica rods

Similar species:

Distribution: Warm-water region to temperate

Drebes, G. 1974. Marines Phytoplankton, Eine Auswahl der Helgoländer Planktonalgen (Diatomeen, Peridineen). Georg Thieme Verlag, Stuttgart. 186 pp.

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.

Jensen, K. G. & Moestrup, Ø. 1998. The genus Chaetoceros (Bacillariophyceae) in inner Danish coastal waters. Opera Botanica. 133: 1-68.

Sundström, B. 1973. Chaetoceros arter i Öresund. MSc. Thesis Univ. of Lund. 77 pp.

  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