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Logrono, La Rioja, Spain
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Ribadelago de Franco, Castille and Leon, Spain
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Galende, Castile and Len, Spain
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Sobrado, Galicia, Spain
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Aka Scenedesmus quadricauda. Scale bar indicates 10 m.Sample from a pond in Lemkendorf on the isle Fehmarn (Baltic Sea). The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Axioplan with Canon EOS 70D.For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Ribadelago, Castille and Leon, Spain
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Ribadelago, Castille and Leon, Spain
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Laguna de Cameros, La Rioja, Spain
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Scale bar indicates 100 m.Sample from the pond Hegne Moor situated in the vicinity of Lake Constance. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Close-up view. In the center of the cell we see a pyrenoid amidst the stellate chloroplast. In addition, the right cell shows the nucleus and the contractile vacuole. The scale bar indicates 10 m. Sample from sphagnum pond Dosenmoor near Neumuenster (Schleswig-Holstein, Germany). Images were taken using Zeiss Axioplan with Canon 600D CCD camera.For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Vinuesa, Castille and Leon, Spain
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Said to be a red form of Green Algae which lives in localities of permanent snow. Chlamydonadaceae Family. Tantalus Range, British Colombia.
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Soba, Cantabria, Spain
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Miranda do Douro Municipality, Braganca, Portugal
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Arboli, Catalonia, Spain
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Scale bar indicates 50 m.Sample from a tropical freshwater aquarium. 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.For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Ribadelago de Franco, Castille and Leon, Spain
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Villoslada de Cameros, La Rioja, Spain
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Miranda do Douro Municipality, Braganca, Portugal
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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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Portrait of Pediastrum duplex (Meyen, 1829 ).Collected from a freshwater pond near Boise, Idaho. Phase contrast.
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Portrait of zoospore (motile reproductive cell capable of transformation into another developmental stage but incapable of sexual fusion) of the filamentous green alga, Oedogonium. Reproduction in Oedogonium may be asexual, by means of large flagellated zoospores (motile reproductive cells capable of transformation into another developmental stage but incapable of sexual fusion) or oögamous with fertilization of oögonia by antherozoids (motile male gametes structurally similar to zoospore but smaller). Release of zoospores is followed by a short swarming phase which ends by the zoospore coming to rest with its flagellated hyaline dome at the substratum, shedding its flagella (as seen here) and then forming a holdfast. A new filament then forms by repeated intercalary and distal terminal cell divisions. Collected from freshwater pond near Boise, Idaho in October 2003. DIC optics.
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Chlamydomonas (clam-ee-dough-moan-ass) iconic volvocid motile green alga, with two similar flagella inserting into the anterior end of the cell. Photosynthetic pigments include chlorophyll B which gives the cells their bright green colour. Phase contrast micrograph.