Tiny Organisms in Aquatic Habitats
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Observations on Closterium costatum

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Closterium costatum Corda ex Ralfs 1848

Most likely ID: n.a.

Basionym: n.a.

Add’l Synonyms: Closterium crassestriatum W.Archer 1879
                               Arthrodia costata (Ralfs) Kuntze 1891
                               Closterium varzinense J.Sampaio 1922
                               Closterium costatum var. multinucleatum Deflandre 1925
                               Closterium costatum f. sigmoideum Corillion ????

Closterium costatum

Sampling date 06/2013. Scale bar indicates 100 µm.

Place name: Wetland Mittermoos near Fieberbrunn (Tyrol, Austria) 
Latitude: 47.47998695     Longitude: 12.5240922

Microscope Zeiss Universal, camera Canon EOS 600D. DOF image.

Closterium costatum

Sampling date 05/2014. Scale bar indicates 25 µm.

Place name: Wetland in the forest Kobernaußerwald (Upper Austria) 
Latitude: 48.049321     Longitude: 13.409805

Microscope Zeiss Universal, camera Canon EOS 600D. DOF image.

Closterium costatum
Closterium costatum

Sampling date 06/2025. Scale bars indicate 100 µm (1), 10 µm (2).

Two images. Whole cell and a zoom on one apex region showing a perforation of the thick-walled cellulose sheath by a parasitic organism.

Place name: Moor called Schwemm near Walchsee (Tyrol, Austria)
Latitude: 47.657707 Longitude: 12.299540 Elevation: 669 m

Tescan Clara SEM, Tescan Clara SEM, © Wolfgang Bettighofer/Jürgen Stampfl

© Wolfgang Bettighofer,
images under Creative Commons License V 3.0 (CC BY-NC-SA).
For permission to use of (high resolution) images please contact postmaster@protisten.de.

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