John Martin (oceanographer)

John Holland Martin (February 27, 1935 – June 18, 1993), was an American oceanographer, known for his research work at the Moss Landing Marine Laboratories. == Life and career == Born in Old Lyme, Connecticut, he is known for his research on the role of iron as a phytoplankton micronutrient, and its significance for so-called "High-Nutrient, Low Chlorophyll" regions of the oceans.