Microbial Respiration, the Engine of Ocean Deoxygenation [PDF]
Frontiers in Marine Science, 2019 Microbial plankton respiration is the key determinant in the balance between the storage of organic carbon in the oceans or its conversion to carbon dioxide with accompanying consumption of dissolved oxygen.
Carol Robinson
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Ocean deoxygenation after the Sturtian Snowball [PDF]
Nature CommunicationsThe abrupt ending of the Sturtian ‘Snowball’ glaciation was characterised by enhanced chemical weathering and carbon cycle perturbations, but there is less certainty over how oxygen levels responded to those changes.
Kun Zhang +3 more
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Evidences and drivers of ocean deoxygenation off Peru over recent past decades [PDF]
Scientific Reports, 2021 Deoxygenation is a major threat to the coastal ocean health as it impacts marine life and key biogeochemical cycles. Understanding its drivers is crucial in the thriving and highly exploited Peru upwelling system, where naturally low-oxygenated ...
D. Espinoza-Morriberón +6 more
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Microbial responses to ocean deoxygenation: Revisiting the impacts on organic carbon cycling [PDF]
iScienceSummary: Ocean deoxygenation is impacting and will also in the future impact fundamental biogeochemical cycles. This review explores the ecological functions of microbes under hypoxic and anoxic conditions, emphasizing their critical roles in carbon ...
Quanrui Chen +12 more
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Ocean deoxygenation, the global phosphorus cycle and the possibility of human-caused large-scale ocean anoxia. [PDF]
Philos Trans A Math Phys Eng Sci, 2017 The major biogeochemical cycles that keep the present-day Earth habitable are linked by a network of feedbacks, which has led to a broadly stable chemical composition of the oceans and atmosphere over hundreds of millions of years.
Watson AJ, Lenton TM, Mills BJW.
europepmc +3 more sources
Competing effects of wind and buoyancy forcing on ocean oxygen trends in recent decades [PDF]
Nature CommunicationsOcean deoxygenation is becoming a major stressor for marine ecosystems due to anthropogenic climate change. Two major pathways through which climate change affects ocean oxygen are changes in wind fields and changes in air-sea heat and freshwater fluxes.
Helene A. L. Hollitzer +3 more
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Gut Microbiomes of Marine Zooplankton: Consequences for Host Performance, the Biological Carbon Pump, and Prokaryote Biogeography. [PDF]
Environ MicrobiolExpected effects of zooplankton microbiota on the host and on the ecosystem. Stylized mesozooplankton holobiont (center) with arrows indicating respiration within the gut and export of faecal pellets and associated microbes. Orange bubbles summarise microbiome‐mediated consequences for host performance (digestive help, detoxification, vitamin ...
Calbet A.
europepmc +2 more sources
Ocean hypoxia: The science of climate change in the sea [PDF]
Scientific ReportsThe oxygen inventory of the global ocean is declining. This phenomenon, known as ocean deoxygenation, has emerged as a fundamental pathway for climate change to alter marine ecosystems. An important concern is how this global oxygen decline will manifest
Francis Chan, Inna Sokolova, Kay Vopel
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Expanded subsurface ocean anoxia in the Atlantic during the Paleocene-Eocene Thermal Maximum [PDF]
Nature CommunicationsThe ocean has experienced substantial oxygen loss over recent decades, affecting marine ecosystems and fisheries. Investigating ocean deoxygenation during hyperthermal events, such as the Paleocene-Eocene Thermal Maximum (PETM), offers insights into its ...
Weiqi Yao +5 more
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The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces
Geophysical Monograph Series, Page 229-246., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson +2 more
wiley +5 more sources