The Evolution of Nutrient Limitation in the North Atlantic Subtropical Gyre – Monitoring with Ships of Opportunity

Vlad Macovei1,2, Sinhue Torres-Valdes3, Susan Elizabeth Hartman4, Ute Schuster5, Mark M Moore2, Peter Brown1, David Hydes1 and Richard Sanders1, (1)National Oceanography Center, Soton, Southampton, United Kingdom, (2)University of Southampton, Ocean and Earth Science, Southampton, United Kingdom, (3)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (4)National Oceanography Center Southampton, Southampton, United Kingdom, (5)University of Exeter, Exeter, United Kingdom