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Singapore, South West, Singapore
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Trefacio, Castille and Leon, Spain
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Ribadelago, Castille and Leon, Spain
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Epithemia turgidaCells in valvar view and in optical transversal section, showing shell reinforcement through transapical costae. Scale bar indicates 25 m.Sample from Lake Constance near Bodman. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.For more look at
www.protisten.de/english/gallery_main/gallery_main.htmlFor high-resolution images please ask postmaster@protisten.de.
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Miranda do Douro Municipality, Braganca, Portugal
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Melosira moniliformis.Colony with epibiotic bacteria chains. Scale bar indicates 25 m. The image was built up using several photomicrographic frames with manual stacking technique. Sample from North Sea near Heligoland (spring diatom bloom). Images were taken using Zeiss Universal with Olympus C7070 CCD camera.For more look at
www.protisten.de/english/gallery_main/gallery_main.htmlFor high-resolution images please ask postmaster@protisten.de.
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Sargasso Weed,
Sargassum natans gathers in large mats in the middle of the Atlantic Ocean. Storms breaks up these mats and they then drift via currents all over the Atlantic. Little gas floats allow this brown algae (
Phaeophyta) to ride atop the waves in the open ocean.You REALLY need to see this one at full-resolution:
www.flickr.com/photos/nashworld/7068343447/sizes/o/in/pho... ...to appreciate the hydroids covering almost the entire surface of this algae.
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Ribadelago, Castille and Leon, Spain
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Vallibona, Valencia, Spain
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A seeweed known as Huiro Palo massively harvested in Chile for export as a thickening agent in foods and cosmetics. The ecological consequences can be devastating.
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Chrysopyxis inaequalis.This unicellar Chrysophyte fixes itself with a string of mucilage on a filamentous alga, in this case Tribonema. Sample from sphagnum pond Dosenmoor near Neumuenster (Schleswig-Holstein, Germany). This image was taken using Zeiss Universal with Olympus C7070 CCD camera. For high-resolution images please ask postmaster@protisten.de.
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Padina gymnospora is not the primary subject of the video clip; the primary subject is Pomacentrus coelestis (Neon damsel). Indo-Pacific, Duration 70 seconds
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Eastern North Pacific Ocean, Duration 19 seconds
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Cells are heteropolar with a triangular foot pole which narrows into a thin extension. Cells are connected by the valve faces of the foot poles into chains which are often star-shaped. A. glacialis can form extensive blooms. A. glacialis is a cosmpolitan species.
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This image was made from samples taken during a scientific cruise in the Pacific. Water was filtered to concentrate the organisms that were present, then dried onto a thin sheet of plastic and then shadowed with a fine layer of metal to provide contrast. The preparation was then observed with an electron-microscope. This technique has been used to document the diversity of marine microbes, especially, protists in the oceans.
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Chaetoceros socialis (key-toss-err-oss sew-see-ah-liss), a centric diatom in with long spines. In this species dozens or hundreds of cells are linked loosely together by their spines. Common in marine ecosystems. Phase contrast.
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Chain of Porosira glacialis. Note that the delicate spines are chitinous. Focus on cell center showing cytoplasmic accumulation around the nucleus. Scale bar indicates 50 µm. The image was built up using several photomicrographic frames with manual stacking technique. Sample from North Sea near Heligoland (spring diatom bloom). Images were taken using Zeiss Universal with Olympus C7070 CCD camera.
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Inside view of lacunate valve. Note the position of the fultoportula on a valve face stria, taking the place of an areola. Specimen from single cell culture from Cleveland Harbor, Cleveland, Ohio, by E. Theriot.
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Image shows chloroplasts, small sparkling droplets of storage polysaccharide chrysolaminarin used as carbohydrate food reserve, and the fine connection tubes between the cells. The image was built up using several photomicrographic frames with manual stacking technique. Scale bar indicates 50 µm. Sample from North Sea near Heligoland (spring diatom bloom). Images were taken using Zeiss Universal with Olympus C7070 CCD camera.
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Valves are cylindrical terminating in a proboscis. Processes are absent. This is a temprate, coastal species.
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Lilleør, Samsø, Danmark
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Fjellerup Strand