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Original Articles

BEITRÄGE ZUR MORPHOLOGIE, ÖKOLOGIE UND ONTOGENIE DER PLANKTISCHEN DIATOMEE CYCLOTELLA COMENSIS GRUNOW. UNTERSUCHUNGEN AN HISTORISCHEM UND REZENTEM MATERIAL

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Pages 171-200 | Published online: 31 Oct 2011
 

Abstract

Die planktische Diatomee des Süßwassers Cyclotella comensis wird schalenmorphologisch beschrieben. Dabei wird historisches Material von 1890 und rezentes Material von 2001 aus dem locus typicus Comer See, Norditalien, rezentes Material aus dem Großen Boberowsee, Norddeutschland und Material aus Klonkulturen mit Ursprung aus norddeutschen Seen, verwendet. Die autökologischen Ansprüche der Art auf der Basis von Populationen aus 68 Seen in Norddeutschland werden analysiert. Angaben zur Sexualvermehrung der Art in den drei norddeutschen Seen Großer Boberowsee, Großer Wummsee und Großer Stechlinsee folgen. Der Lebenszyklus von C. comensis im Großen Boberowsee von August 1998 bis Januar 2000 wird beschrieben.

The planktonic freshwater diatom Cyclotella comensis will be morphologically described in detail. Therefore both historical (1890) and recently sampled material (2001) from the locus typicus Lake Como in Northern Italy is taken into account, as well as recent samples from the Großer Boberowsee (North Germany) and material from clone cultures originating from North German lakes. The autecological requirements of the species will be analysed on the basis of populations from 68 North German lakes. Information referring to the development of sexual cells of the species in three North German lakes (Großer Boberowsee, Großer Wummsee, Großer Stechlinsee) will be presented. The life-cycle of C. comensis in the lake Großer Boberowsee from August 1998 to January 2000 is described.

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