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Cosmarium caelatum Scale bar indicates 25 µm. Sample from wetland Lauchseemoor, Fieberbrunn, Tyrol, Austria. Sampling date 06/2023. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Axioplan with Olympus OM-D M5 MKII. Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Wetland Lauchseemoor, Fieberbrunn (Tyrol, Austria) Latitude: 47.46954439 Longitude: 12.53826499 Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 25 µm. Probe aus dem Lauchseemoor bei Fieberbrunn, Tirol. Datum der Aufsammlung: 06/2023. Mikrotechnik: Zeiss Axioplan, Kamera: Olympus OM-D M5 MKII. 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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Cosmarium caelatum View from the narrow side. Scale bar indicates 25 µm. Sample from the wetland at Grünbichel near Pillersee (Tyrol, Austria). The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Wetland Grünbichel near Fieberbrunn (Tyrol, Austria) Latitude: 47.484885 Longitude: 12.546114 Blick auf die Schmalseite. Der Messbalken markiert eine Länge von 25 µm. Probe aus einer Feuchtwiese beim Grünbichel Nähe Pillersee in Tirol. Mikrotechnik: Zeiss Universal, Kamera: Olympus C7070. 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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Cosmarium caelatum Scale bar indicates 25 µm. Sample from the wetland at Grünbichel near Pillersee (Tyrol, Austria). The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Wetland Grünbichel near Fieberbrunn (Tyrol, Austria) Latitude: 47.484885 Longitude: 12.546114 Der Messbalken markiert eine Länge von 25 µm. Probe aus einer Feuchtwiese beim Grünbichel Nähe Pillersee in Tirol. Mikrotechnik: Zeiss Universal, Kamera: Olympus C7070. 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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Soba, Cantabria, Spain
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Soba, Cantabria, Spain
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Soba, Cantabria, Spain
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Cosmarium (cos-may-ree-um) caelatum. Cosmarium is a very common and large genus of alga found usually in oligotrophic, acid waters. The cells of this genus are composed of two semi-cells, constricted in the middle. This region is termed the isthmus and is where the nucleus is found. The outer portions of each semi-cell contain a single, large chloroplast. The outer cell wall of each semi-cell is covered with pores and can be very ornate with the pattern being useful in distinguishing among species. The cells move slowly using mucilage secretion to create the force for movement. Both asexual and sexual reproduction occurs. The asexual reproduction is by cell division and the sexual reproduction involves the formation of zygospores. The gametes migrate from the parental cells, passing through pores to fuse in a region midway between the parental walls. The zygote can form a very ornate wall. This specimen was collected in a moor located in the Salzburger Land, Austria. This image emphasizes the ornate cell wall of Cosmarium ornatum. This specimen measures 49 microns long and 38 microns wide.
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Cosmarium (cos-may-ree-um) caelatum. Cosmarium is a very common and large genus of alga found usually in oligotrophic, acid waters. The cells of this genus are composed of two semi-cells, constricted in the middle. This region is termed the isthmus and is where the nucleus is found. The outer portions of each semi-cell contain a single, large chloroplast. The outer cell wall of each semi-cell is covered with pores and can be very ornate with the pattern being useful in distinguishing among species. The cells move slowly using mucilage secretion to create the force for movement. Both asexual and sexual reproduction occurs. The asexual reproduction is by cell division and the sexual reproduction involves the formation of zygospores. The gametes migrate from the parental cells, passing through pores to fuse in a region midway between the parental walls. The zygote can form a very ornate wall. This specimen is 49 microns long and 38 microns wide.
