ALEXIS ROSENFELD / SCIENCE PHOTO LIBRARY ALEXIS ROSENFELD / SCIENCE PHOTO LIBRARY
Seawater analysis. Scientist Jean Turquet taking samples of seawater for analysis. The data is used to evaluate the chemical conditions in which populations of microalgae proliferate. Some species of microalgae contain a toxin which accumulates in the food chain and can cause ciguatera poisoning in humans. Photographed in the Glorious Islands, in the Indian Ocean.
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