Microalgae research. Scientist Jean Turquet collecting a sample of seaweed for analysis in a laboratory. The surface of the seaweed will be studied to establish which species of microalgae are present on its surface. Some species of microalgae, particularly Gambierdiscus toxicus, contain a harmful toxin which accumulates in the food chain and can cause food poisoning in humans. Photographed in the Glorious Islands in the Indian Ocean.
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