ALEXIS ROSENFELD / SCIENCE PHOTO LIBRARY ALEXIS ROSENFELD / SCIENCE PHOTO LIBRARY
Diver carrying out marine research. Marine researcher surveying a marine ecosystem using the transect method. The diver is counting plants and animals observed along a line. The results can then be extended and statistical analysis used to obtain an estimate for the population of a larger area. Photographed in May 2016, off the Mediterranean coast of France.
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