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Ceratium hirundinella Zoom-in with nucleus, part of the longitudinal groove and flagellum. Scale bar indicates 25 µm. Sample from the Lake Constance (vicinity of Bodman). 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: Lake Constance vicinity of Bodman (Germany) Latitude: 47.796494 Longitude: 9.047656 Ausschnitt mit Kerndarstellung, Längsfurche und Teil der Längsgeißel. Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 25 µm. Probe aus dem Bodensee in der Nähe von Bodman. 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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Ceratium hirundinella Scale bar indicates 50 µm. Sample from the Lake Constance (vicinity of Bodman). 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: Lake Constance vicinity of Bodman (Germany) Latitude: 47.796494 Longitude: 9.047656 Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 50 µm. Probe aus dem Bodensee in der Nähe von Bodman. 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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Ceratium hirundinella Scale bar indicates 50 µm. Sample from the Lake Constance (vicinity of Bodman). 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: Lake Constance vicinity of Bodman (Germany) Latitude: 47.796494 Longitude: 9.047656 Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 50 µm. Probe aus dem Bodensee in der Nähe von Bodman. 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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Portrait of the dinoflagellate, Ceratium hirundinella (O.F. Müller) Schrank, 1882. The body is drawn out into a long anterior horn and three subequal posterior horns at angles to one another. The transverse girdle or cingulum bears a flagellum (not seen in this image), which differs structurally from the trailing flagellum (seen here between the right and central posterior horns). Complex faceted cellulose plates cover the body. Small discoid plastids contain chlorophyll a and c along with other pigments, which may give a yellow-brown or brownish-red color. Composite image. Collected from freshwater pond near Boise, Idaho September 2003. DIC optics.
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Ceratium hirundinella is one of the larger dinoflagellates (length ~ 400 μm) occurring in Lake Kinneret. It is easily identified by its typical 3 or 4 horns of varying length and overall shape reminiscent of the Eiffel tower. It is abundant in spring, when it accompanies the more abundant dinoflagellate Peridinium gatunense at its bloom decline phase. At this time of year other, smaller dinoflagellates are also present in the water column (Peridiniopsis elpatiewsky, Ps. cunningtonii, Ps. borgei, Ps. polonicum). While usually less abundant than the other dinoflagellates, it produces a large number of cysts (resting spores) that sink to the sediments. An exceptional bloom of Ceratium occurred in spring 1993 when cell densities in the upper 0-2 m layer reached 150/mL.
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Cysts of Ceratium are found in the water column during the exponential growth phase and sink to the sediments. Their shape is typical, with 3 horns and at least one red spot. The specimen was sampled from shallow water near the Kinneret Limnological Laboratory in April 2006.
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Ceratium hirundinella is one of the larger dinoflagellates (length ~ 400 μm) occurring in Lake Kinneret. It is easily identified by its typical 3 or 4 horns of varying length and overall shape reminiscent of the Eifel tower. It is abundant in spring, when it accompanies the more abundant dinoflagellate Peridinium gatunense at its bloom decline phase. At this time of year other, smaller dinoflagellates are also present in the water column (Peridiniopsis elpatiewsky, Ps. cunningtonii, Ps. borgei, Ps. polonicum). While usually less abundant than the other dinoflagellates, it produces a large number of cysts (resting spores) that sink to the sediments. An exceptional bloom of Ceratium occurred in spring 1993 when cell densities in the upper 0-2 m layer reached 150/mL.
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Cysts of Ceratium hirundinella are found in the water column during the exponential growth phase and sink to the sediments. Their shape is typical, with 3 horns and at least one red spot. The specimen was sampled from shallow water near the Kinneret Limnological Laboratory in April 2006.
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Dividing cell of Ceratium hirundinella (Dinoflagellata), and a second cell with a abnormal horn, pointed in the "wrong" direction