Marine diatom from Maldives

Marine diatom from Maldives

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Caption: Light micrograph of a marine diatom (unidentified) found at 50 metres depth off the Maldive Islands. Diatoms are single-celled microscopic algae. They have an intricately patterned glass-like cell wall or frustule. This frustule is made of silica and pectin. The wall is in two halves which fit toge- ther like two parts of a pill box. One slightly larger half acts as the lid to the box. Only one half can be seen here from above. This circular (centric) diatom is perfectly symmetrical; another major group of diatoms are elongate. Found in both marine and fresh water environments, and in the soil, diatoms are of great importance to food chains. Magnification: x240 at 6x7cm size.

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Keywords: alga, algae, algal, botany, centric, diatom, diatoms, light micrograph, maldive islands, marine, marine diatom, nature, phytoplankton, plankton, plant, shape

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