Dissolved phosphorus compounds enhance N2 fixation rates in the eastern tropical North Atlantic

Judith Meyer, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, Arvind Singh, GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, Kiel, Germany; Physical Research Laboratory, Ahmedabad, India and Ulf Riebesell, GEOMAR, Kiel, Germany