The fate of organic carbon in marine sediments-New insights from recent data and analysis

DE LaRowe, S Arndt, JA Bradley, ER Estes… - Earth-Science …, 2020 - Elsevier
Organic carbon in marine sediments is a critical component of the global carbon cycle, and
its degradation influences a wide range of phenomena, including the magnitude of carbon …

Impacts of deep‐sea mining on microbial ecosystem services

BN Orcutt, JA Bradley, WJ Brazelton… - Limnology and …, 2020 - Wiley Online Library
Interest in extracting mineral resources from the seafloor through deep‐sea mining has
accelerated in the past decade, driven by consumer demand for various metals like zinc …

Evolutionary temperature compensation of carbon fixation in marine phytoplankton

S Barton, J Jenkins, A Buckling, CE Schaum… - Ecology …, 2020 - Wiley Online Library
The efficiency of carbon sequestration by the biological pump could decline in the coming
decades because respiration tends to increase more with temperature than photosynthesis …

[HTML][HTML] Optimality-based non-Redfield plankton–ecosystem model (OPEM v1. 1) in UVic-ESCM 2.9–Part 1: Implementation and model behaviour

M Pahlow, CT Chien, LA Arteaga… - Geoscientific Model …, 2020 - gmd.copernicus.org
Uncertainties in projections of marine biogeochemistry from Earth system models (ESMs)
are associated to a large degree with the imperfect representation of the marine plankton …

Towards an understanding of the Ca isotopic signal related to ocean acidification and alkalinity overshoots in the rock record

MS Fantle, A Ridgwell - Chemical Geology, 2020 - Elsevier
In this contribution, we explore the idea that the Ca isotope proxy has utility as an indicator of
carbonate authigenesis (ie, post-depositional precipitation of CaCO 3 within the sedimentary …

[HTML][HTML] Coupling of a sediment diagenesis model (MEDUSA) and an Earth system model (CESM1. 2): a contribution toward enhanced marine biogeochemical …

T Kurahashi-Nakamura, A Paul… - Geoscientific Model …, 2020 - gmd.copernicus.org
We developed a coupling scheme for the Community Earth System Model version 1.2
(CESM1. 2) and the Model of Early Diagenesis in the Upper Sediment of Adjustable …

[HTML][HTML] Anoxic iron and sulphur cycling in the cGENIE. muffin Earth system model (v0. 9.16)

SJ van de Velde, D Hülse, CT Reinhard… - Geoscientific Model …, 2020 - gmd.copernicus.org
The coupled biogeochemical cycles of iron and sulphur are central to the long-term
biogeochemical evolution of Earth's oceans. For instance, before the development of a …

Silicon isotopes in an EMIC's ocean: Sensitivity to runoff, iron supply, and climate

H Dietze, U Löptien, R Hordoir… - Paleoceanography …, 2020 - Wiley Online Library
The isotopic composition of Si in biogenic silica (BSi), such as opal buried in the oceans'
sediments, has changed over time. Paleorecords suggest that the isotopic composition …

Temperature-driven nutrient recycling and euxinia as a marine mass extinction mechanism

D Hülse, K Lau, S van de Velde, S Arndt, K Meyer… - 2020 - researchsquare.com
Extreme warming at the end-Permian induced profound changes in marine biogeochemical
cycling and animal habitability, leading to the largest extinction in Earth's history. However, a …

Morte celular programada em microalgas verdes cocoides e seus possíveis efeitos ecológicos

MM Barreto Filho - 2020 - repositorio.ufscar.br
Programmed cell death may have important intra and inter-specifics effects in
phytoplanktonic populations, and consequently in the ecology of freshwater ecosystems …