High Lability Fe Particles Sourced From Glacial Erosion Can Meet Previously Unaccounted Biological Demand: Heard Island, Southern Ocean

• Published in: Frontiers in Marine Science
• Main Authors: Pier van der Merwe, Kathrin Wuttig, Thomas Holmes, Thomas W. Trull, Zanna Chase, Ashley T. Townsend, Karsten Goemann, Andrew R. Bowie
• Format: Article in Journal/Newspaper
• Language: English
• Published: Frontiers Media S.A. 2019
• Subjects: particulate trace metals; McDonald Island; suspended particles; chemical leach; hydrothermal; iron; Science; Q; General. Including nature conservation; geographical distribution; QH1-199.5; Southern Ocean; Heard Island; Indian; Heard; McDonald Islands
• Online Access: https://doi.org/10.3389/fmars.2019.00332; https://doaj.org/article/9935f850fbed4534b71039dece4b215d

Iron (Fe) is an essential micronutrient that controls phytoplankton growth in the Southern Ocean. Dissolved Fe (<0.4 μm) has been extensively studied due to its relatively high bioavailability. However, particulate Fe (>0.4 μm) is far more abundant and may also become bioavailable through biog...