Isotopic Fingerprinting of Biogeochemical Processes and Iron Sources in the Iron-limited Surface Southern Ocean

• Main Authors: Sieber, M., Conway, T. M., de Souza, G. F., Hassler, C. S., Ellwood, M. J., Vance, D.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Digital Commons @ University of South Florida 2021
• Subjects: trace metals; micronutrients; biogeochemistry; nutrient cycling; Antarctic Circumnavigation Expedition; Life Sciences; Antarctic; Antarctic Peninsula; Austral; Balleny Islands; Balleny Seamount; Near Islands; Southern Ocean; The Antarctic; Antarc*
• Online Access: https://digitalcommons.usf.edu/msc_facpub/2479; https://digitalcommons.usf.edu/cgi/viewcontent.cgi?article=3485&context=msc_facpub

Iron (Fe) is an essential micronutrient that limits primary productivity throughout the surface of the Southern Ocean. Here, we present the first high-resolution depth profiles for dissolved Fe and Fe isotope ratios (δ56">δ56 Fe) from all major zones of the Southern Ocean, collected during t...