Process controlling iron-manganese regulation of the Southern Ocean biological carbon pump.

ABSTRACT: Iron (Fe) is a key limiting nutrient driving the biological carbon pump and is routinely represented in global ocean biogeochemical models. However, in the Southern Ocean, the potential role for other micronutrients has not received the same attention. For example, although manganese (Mn) is essential to photosynthetic oxygen production and combating oxidative stress, it is not included in ocean models and a clear understanding of its interaction with Fe in the region is lacking. This is especially important for the Southern Ocean because both Mn and Fe are strongly depleted. We use a hierarchical modelling approach to explore how the physiological traits associated with Fe and Mn contribute to driving the footprint of micronutrient stress across different phytoplankton functional types (P

SUBMITTER: Anugerahanti P 

PROVIDER: S-EPMC10164462 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature