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Image of Mesodinium rubrum. This ciliate contains chloroplasts (the dark brown areas in this specimen). It usually functions as a plant, living from photosynthesis. However, ocassionally it needs to replensish its supply of chloroplasts by eating a particular kind of microscopic protist- a 'cryptophyte'.
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This ciliate is Mesodinium rubrum, a very common planktonic ciliate which usually relies on photosynthesis rather than eating phytoplankton. It contains chloroplasts from cryptophyte algae. It is about 30 microns long.
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Ribadelago de Franco, Castille and Leon, Spain
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Mohedas de la Jara, Castille la Mancha, Spain
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Lardero, La Rioja, Spain
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Mohedas de la Jara, Castille la Mancha, Spain
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Mohedas de la Jara, Castille la Mancha, Spain
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Pera, Faro, Portugal
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Pera, Faro, Portugal
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Pera, Faro, Portugal
