Hommage à Louis Boutan

Louis Boutan was a biologist and one of the first underwater photographer. Graduating in 1879 with a Doctorate of Science at the University of Paris, he became a marine biology professor at the University of Banyuls-Sur-Mer (France) in 1893. The present note provide a biography of Boutan and a contribution on the effect of tidal cycles on corals growth by A. Krempf.