[HTML][HTML] Database of nitrification and nitrifiers in the global ocean

W Tang, BB Ward, M Beman, L Bristow… - Earth System …, 2023 - essd.copernicus.org
As a key biogeochemical pathway in the marine nitrogen cycle, nitrification (ammonia
oxidation and nitrite oxidation) converts the most reduced form of nitrogen–ammonium …

Influence of open ocean nitrogen supply on the skeletal δ15N of modern shallow-water scleractinian corals

XT Wang, DM Sigman, AL Cohen, DJ Sinclair… - Earth and Planetary …, 2016 - Elsevier
The isotopic composition of skeleton-bound organic nitrogen in shallow-water scleractinian
corals (hereafter, CS-δ 15 N) is an emerging tool for studying the marine nitrogen cycle in …

Global trends in marine nitrate N isotopes from observations and a neural network-based climatology

PA Rafter, A Bagnell, D Marconi, T DeVries - Biogeosciences, 2019 - bg.copernicus.org
Nitrate is a critical ingredient for life in the ocean because, as the most abundant form of
fixed nitrogen in the ocean, it is an essential nutrient for primary production. The availability …

[HTML][HTML] Biogeochemical controls on ammonium accumulation in the surface layer of the Southern Ocean

S Smith, KE Altieri, M Mdutyana, DR Walker… - …, 2022 - bg.copernicus.org
The production and removal of ammonium (NH 4+) are essential upper-ocean nitrogen
cycle pathways, yet in the Southern Ocean where NH 4+ has been observed to accumulate …

Nitrate assimilation and regeneration in the Barents Sea: insights from nitrogen isotopes

RE Tuerena, J Hopkins, RS Ganeshram… - Biogeosciences …, 2020 - bg.copernicus.org
While the entire Arctic Ocean is warming rapidly, the Barents Sea in particular is
experiencing significant warming and sea ice retreat. An increase in ocean heat transport …

Prochlorococcus Exudate Stimulates Heterotrophic Bacterial Competition with Rival Phytoplankton for Available Nitrogen

BC Calfee, LD Glasgo, ER Zinser - MBio, 2022 - Am Soc Microbiol
The marine cyanobacterium Prochlorococcus numerically dominates the phytoplankton
community of the nutrient-limited open ocean, establishing itself as the most abundant …

[HTML][HTML] Quantifying the N trophic offset in a cold-water scleractinian coral (CWC): implications for the CWC diet and coral N as a marine N cycle proxy

JL Mottram, AM Gothmann, MG Prokopenko… - …, 2024 - bg.copernicus.org
The nitrogen (N) isotope composition (δ 15 N) of cold-water corals is a promising proxy for
reconstructing past ocean N cycling, as a strong correlation was found between the δ 15 N …

Isotopic fractionation of carbon during uptake by phytoplankton across the South Atlantic subtropical convergence

RE Tuerena, RS Ganeshram, MP Humphreys… - …, 2019 - bg.copernicus.org
The stable isotopic composition of particulate organic carbon (δ 13 C POC) in the surface
waters of the global ocean can vary with the aqueous CO 2 concentration ([CO 2 (aq)]) and …

[HTML][HTML] The influence of the cape canyon on the food web structure of the southern Benguela upwelling system

E Puccinelli, Z Filander, T Lamont - Journal of Marine Systems, 2024 - Elsevier
Submarine canyons are heterogeneous environments known to support a variety of benthic
organisms and they are considered biodiversity hotspots. The peculiar hydrographic …

Quantification of multiple simultaneously occurring nitrogen flows in the euphotic ocean

MN Xu, Y Wu, LW Zheng, Z Zheng, H Zhao… - …, 2017 - bg.copernicus.org
The general features of the N cycle in the sunlit region of the ocean are well known, but
methodological difficulties have previously confounded simultaneous quantification of …