Calcareous phytoplankton, SEM

Calcareous phytoplankton, SEM

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Credit: NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY

Caption: Calcareous phytoplankton. Coloured scanning electron micrograph (SEM) of Discosphaera tubifera. This small algal organism (coccolithophore) is surrounded by a skeleton (coccosphere) of trumpet-shaped calcium carbonate plates (coccoliths). When the organism dies, the plates separate and sink to the ocean floor. Individual plates have been found in vast numbers and can make up the major component of a particular rock, such as the chalk of England. Specimen from the Alboran Sea, western Mediterranean.

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Keywords: alboran sea, alga, algae, algal, aquatic, black background, calcareous phytoplankton, calcium carbonate, coccolith, coccolithophorid, coccolithphore, coccoliths, coccosphere, coloured, discosphaera tubifera, endothecal, exothecal, false-colour, false-coloured, flagellate, marine, mediterranean, microbiological, microbiology, nature, plankton, planktonic, scanning electron micrograph, scanning electron microscope, sem, skeleton, trumpet, trumpet-shaped, unusual

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