Absence of photophysiological response to iron addition in autumn phytoplankton in the Antarctic sea-ice zone

• Published in: Biogeosciences
• Main Authors: A. Singh, S. Fietz, S. J. Thomalla, N. Sanchez, M. V. Ardelan, S. Moreau, H. M. Kauko, A. Fransson, M. Chierici, S. Samanta, T. N. Mtshali, A. N. Roychoudhury, T. J. Ryan-Keogh
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2023
• Subjects: Ecology; QH540-549.5; Life; QH501-531; Geology; QE1-996.5; Antarctic; Astrid Ridge; Austral; Dronning Maud Land; Southern Ocean; The Antarctic; Antarc*; Sea ice
• Online Access: https://doi.org/10.5194/bg-20-3073-2023; https://doaj.org/article/35f5ef9338d84dc691bc729c17e484fb

The high nutrient–low chlorophyll condition of the Southern Ocean is generally thought to be caused by the low bioavailability of micronutrients, particularly iron, which plays an integral role in phytoplankton photosynthesis. Nevertheless, the Southern Ocean experiences seasonal blooms that general...