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dinoflagellate |
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dinoflagellateAny of numerous one-celled, aquatic organisms that have two dissimilar flagella and characteristics of both plants (algae) and animals (protozoans). Most are microscopic and marine. The group is an important component of phytoplankton in all but the colder seas, and it is an important link in the food chain. Dinoflagellates also produce part of the luminescence sometimes seen in the sea. Under favourable conditions, dinoflagellate populations may reach 60 million organisms per litre of water. Such rapid growths, called blooms, result in the red tides that discolour the sea and poison fish and other marine animals. See also Ceratium. |
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| Along the Florida coast, pigments in the "red tides" caused by Karenia brevis and other dinoflagellates signal toxic blooms. These toxins are transmitted by dinoflagellates of the species Gambierdiscus toxicus, which lives adhered to damaged coral reefs in tropical seas (2). The device is named after the species of dinoflagellate, K. |
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dinoflagellate
