Exploring the potential role of terrestrially derived humic substances in the marine biogeochemistry of iron

FLL Muller - Frontiers in Earth Science, 2018 - frontiersin.org
There is a widely recognized link between iron bioavailability and phytoplankton growth in
large tracts of the World Ocean. Iron bioavailability is thus pivotal to the removal of …

A call for refining the role of humic-like substances in the oceanic iron cycle

H Whitby, H Planquette, N Cassar, E Bucciarelli… - Scientific reports, 2020 - nature.com
Primary production by phytoplankton represents a major pathway whereby atmospheric
CO2 is sequestered in the ocean, but this requires iron, which is in scarce supply. As over …

Iron biogeochemistry across marine systems–progress from the past decade

E Breitbarth, EP Achterberg, MV Ardelan… - …, 2010 - bg.copernicus.org
Based on an international workshop (Gothenburg, 14–16 May 2008), this review article aims
to combine interdisciplinary knowledge from coastal and open ocean research on iron …

[HTML][HTML] Ligand exchange provides new insight into the role of humic substances in the marine iron cycle

CF Sukekava, J Downes, M Filella, B Vilanova… - … et Cosmochimica Acta, 2024 - Elsevier
Organic complexation of iron plays a crucial role in preventing its precipitation, facilitating its
transport, and modulating its reactivity and bioavailability in natural waters. Although humic …

Marine biogeochemistry of iron

SJ Ussher, EP Achterberg… - Environmental …, 2004 - CSIRO Publishing
Environmental Context. Several trace elements are essential to the growth of
microorganisms, iron being arguably the most important. Marine microorganisms, which …

Towards the identification of humic ligands associated with iron transport through a salinity gradient

KM Heerah, HE Reader - Scientific Reports, 2022 - nature.com
Humic ligands from boreal rivers have been identified as important sources of iron-binding
ligands to the coastal marine environment but remain poorly characterized. A novel method …

Humic substances may control dissolved iron distributions in the global ocean: Implications from numerical simulations

K Misumi, K Lindsay, JK Moore… - Global …, 2013 - Wiley Online Library
This study used an ocean general circulation model to simulate the marine iron cycle in an
investigation of how simulated distributions of weak iron‐binding ligands would be expected …

Basin scale survey of marine humic fluorescence in the Atlantic: Relationship to iron solubility and H2O2

MI Heller, DM Gaiero, PL Croot - Global Biogeochemical …, 2013 - Wiley Online Library
Iron (Fe) is a limiting nutrient for phytoplankton productivity in many different oceanic
regions. A critical aspect underlying iron limitation is its low solubility in seawater as this …

Iron bioavailability in the Southern Ocean

CS Hassler, V Schoemann, M Boye… - … and marine biology, 2012 - taylorfrancis.com
Abstract In the Southern Ocean, phytoplankton growth is largely limited by the lack of iron,
affecting the biogeochemical cycling not only of iron itself but also of other elements …

Review and synthesis: iron input, biogeochemistry, and ecological approaches in seawater

CM Longhini, F Sá, RR Neto - Environmental reviews, 2019 - cdnsciencepub.com
The processes involved in the biogeochemical cycle of Fe in the oceans have been
intensely discussed in recent decades because this element is limiting to primary …