SHELF-BASIN CONNECTIVITY DRIVES DISSOLVED Fe AND Mn DISTRIBUTIONS IN THE WESTERN ARCTIC OCEAN

L Jensen, M Colombo - Oceanography, 2024 - JSTOR
There have been many changes over the past few decades in the physical environment and
ecosystem health of the Arctic Ocean, which is a sentinel of global warming. Bioactive trace …

AN OCEAN OF PARTICLES

BS Twining - Oceanography, 2024 - JSTOR
The GEOTRACES program has greatly expanded measurements of trace elements, which
serve as key nutrients, harmful contaminants, and tracers of ocean processes and past …

Marine nitrogen-fixers in the Canadian Arctic Gateway are dominated by biogeographically distinct noncyanobacterial communities

BM Robicheau, J Tolman, S Rose… - FEMS Microbiology …, 2023 - academic.oup.com
We describe diazotrophs present during a 2015 GEOTRACES expedition through the
Canadian Arctic Gateway (CAG) using nifH metabarcoding. In the less studied Labrador …

Life-Course Health Risk Assessment of PM2.5 Elements in China: Exposure Disparities by Species, Source, Age, Gender, and Location

K Cheng, Y Chang, X Lee, D Ji, L Qiao… - Environmental …, 2024 - ACS Publications
Key stages in people's lives have particular relevance for their health; the life-course
approach stresses the importance of these stages. Here, we applied a life-course approach …

[HTML][HTML] Impact of dense water formation on the transfer of particles and trace metals from the coast to the deep in the northwestern Mediterranean

X Durrieu De Madron, D Aubert, B Charrière… - Water, 2023 - mdpi.com
This study aimed to describe the interannual variability of dense shelf water cascading and
open ocean convection in the Gulf of Lions (NW Mediterranean) based on long-term …

[HTML][HTML] Shelf-to-basin shuttle of highly fractionated chromium isotopes in the Arctic Ocean

I Baconnais, C Holmden - Geochimica et Cosmochimica Acta, 2024 - Elsevier
The oceanic chromium (Cr) cycle is mainly governed by the interconversion and the
distribution of Cr (VI) and Cr (III) species and their stable isotopic ratios (δ 53 Cr) in the water …

[HTML][HTML] Controls on distributions of aluminium, manganese and cobalt in the South Atlantic Ocean along GEOTRACES transect GA10

XG Chen, A Milne, JK Klar, M Gledhill… - … et Cosmochimica Acta, 2024 - Elsevier
Abstract Trace metals (TMs) manganese (Mn), cobalt (Co), and aluminium (Al) have
important geochemical and biological roles in the ocean. Here, we present full depth profiles …

Control of particulate manganese (Mn) cycling in halocline Arctic Ocean waters by putative Mn‐oxidizing bacterial dynamics

M Colombo, J LaRoche, D Desai, J Li… - Limnology and …, 2023 - Wiley Online Library
Particulate Mn, given its high adsorptive capacity and oxidation potential, has profound
impacts on the cycling of various trace elements and organic matter in the ocean. Moreover …

Processes controlling the distributions and cycling of dissolved aluminum and manganese in the northeastern Indian Ocean

Y Yang, L Li, J Ren, S Jiang, J Zhang - Frontiers in Marine Science, 2023 - frontiersin.org
Aluminum and manganese are both key parameters in the GEOTRACES program. Data on
dissolved aluminum (dAl) and dissolved manganese (dMn) relative to their geochemical …

Sediments in sea ice drive the Canada Basin surface Mn maximum: insights from an Arctic Mn ocean model

B Rogalla, SE Allen, M Colombo… - Global …, 2022 - Wiley Online Library
Biogeochemical cycles in the Arctic Ocean are sensitive to the transport of materials from
continental shelves into central basins by sea ice. However, it is difficult to assess the net …