Chaetoceros similis Cleve 1896

A = Vegative cell with two chloroplasts (BF); B = Vegetative cells in chain (PC); C = Resting spores (BF). A-C=Living cells


Life-form: Cells united in short chains or solitary.

Size: Diameter = 5 - 17 µm, Pervalvar axis = 11-15 µm, Transapical axis = 7 µm

Resting spore: +

Note: Solitary specimens can be confused with solitary living species as e.g. Chaetoceros tenuissimus Meunier.

Distinctive features: Apertures narrow and divided in two parts. Mostly two chloroplasts.

Similar species: Chaetoceros tenuissimus

Distribution: Northern Atlantic and Northern Pacific.

Cleve, P. T. 1896b. Redogörelse för de svenska hydrografiska undersökningarne februari 1896. V. Planktonundersökningar: Vegetabilskt plankton. Bih. Kongl. Svensk. Vet.-Akad. Handl. 22(III, 5): 1-33.

Rines, J. E. B. & Hargraves, P. E. 1988. The Chaetoceros Ehrenberg (Bacillariophyceae) flora of Narragansett Bay, Rhode Island, USA. Bibliotheca Phycologica 79: 1-196.

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