A5076988776- Ocean Acidification Effects and Responses
- Marine and coastal ecosystems
- Marine Biology and Ecology Research
- Marine Bivalve and Aquaculture Studies
- Coral and Marine Ecosystems Studies
- Oceanographic and Atmospheric Processes
- Coastal wetland ecosystem dynamics
- Marine and fisheries research
- Methane Hydrates and Related Phenomena
- Atmospheric and Environmental Gas Dynamics
- Isotope Analysis in Ecology
- Marine and coastal plant biology
- Geology and Paleoclimatology Research
- Hydrocarbon exploration and reservoir analysis
- Tropical and Extratropical Cyclones Research
- Groundwater and Isotope Geochemistry
- Aquatic Ecosystems and Phytoplankton Dynamics
- Microbial Community Ecology and Physiology
- Peatlands and Wetlands Ecology
- Wastewater Treatment and Nitrogen Removal
- Soil and Water Nutrient Dynamics
- Geological and Geophysical Studies
- Phosphorus and nutrient management
- Paleontology and Stratigraphy of Fossils
- Coastal and Marine Management
The Affiliated Yongchuan Hospital of Chongqing Medical University
2025
Chongqing Medical University
2025
Institute of Geochemistry
2023-2024
University of Chinese Academy of Sciences
2023-2024
Texas A&M University – Corpus Christi
2015-2024
Chinese Academy of Sciences
2023
University of Liverpool
2023
Nantong University
2023
Ocean University of China
2022
First Institute of Oceanography
2022
ABSTR ACT
It has been predicted that the Arctic Ocean will sequester much greater amounts of carbon dioxide (CO2) from atmosphere as a result sea ice melt and increasing primary productivity. However, this prediction was made on basis observations either highly productive ocean margins or ice-covered basins before recent major retreat. We report here high-resolution survey sea-surface CO2 concentration across Canada Basin, showing great increase relative to earlier observations. Rapid invasion low...
Abstract Carbon cycling in the coastal zone affects global carbon budgets and is critical for understanding urgent issues of hypoxia, acidification, tidal wetland loss. However, there are no regional spanning three main ecosystems waters: wetlands, estuaries, shelf waters. Here we construct such a budget eastern North America using historical data, empirical models, remote sensing algorithms, process‐based models. Considering net fluxes total at domain boundaries, 59 ± 12% (± 2 standard...
It has been speculated that the partial pressure of carbon dioxide (pCO2) in shelf waters may lag rise atmospheric CO2. Here, we show this is case across many regions, implying a tendency for enhanced uptake This result based on analysis long-term trends air-sea pCO2 gradient (ΔpCO2) using global surface ocean database spanning period up to 35 years. Using wintertime data only, find ΔpCO2 increased 653 825 0.5° cells which trend could be calculated, with 325 these showing significant...
Effective data management plays a key role in oceanographic research as cruise-based data, collected from different laboratories and expeditions, are commonly compiled to investigate regional global processes. Here we describe new updated best practice standards for discrete chemical observations, specifically those dealing with column header abbreviations, quality control flags, missing value indicators, standardized calculation of certain properties. These have been developed the goals...
Total alkalinity (TA) distribution and its relationship with salinity (S) along the western North Atlantic Ocean (wNAO) margins from Labrador Sea to tropical areas are examined in this study. Based on observed TA‐S patterns, mixing processes that control these can be categorized into a spectrum of patterns bracketed by two extreme types, i.e., alongshore current‐dominated river‐dominated. Alongshore exhibit segmented line shared mid‐salinity end‐member. In such cases (i.e., Sea, Gulf Maine,...
[1] Recent interest in the ocean's capacity to absorb atmospheric CO2 and buffer accompanying "ocean acidification" has prompted discussions on magnitude of ocean margin alkalinity production via anaerobic processes. However, available estimates are largely based gross reaction rates or misconceptions regarding stoichiometry. In this paper, we argue that net gain does not result from internal cycling nitrogen sulfur species reduction metal oxides. Instead, only processes involve permanent...
Distributions of total alkalinity (TA), dissolved inorganic carbon (DIC), and other parameters relevant to the marine system were investigated in shelf adjacent ocean waters during a U.S. Gulf Mexico East Coast Carbon cruise July–August 2007. TA exhibited near‐conservative behavior with respect salinity. Shelf concentrations generally high southern (Gulf Florida) decreased northward from Georgia Maine. DIC was less variable geographically strongly nonconservative behavior. As result, ratio...
Rising atmospheric CO2 concentrations threaten coral reefs globally by causing ocean acidification (OA) and warming. Yet, the combined effects of elevated pCO2 temperature on physiology resilience remain poorly understood. While calcification energy reserves are important health indicators, no studies to date have measured reserve pools (i.e., lipid, protein, carbohydrate) together with under OA conditions different scenarios. Four species, Acropora millepora, Montipora monasteriata,...
Abstract Reliably predicting how coral calcification may respond to ocean acidification and warming depends on our understanding of mechanisms. However, the concentration speciation dissolved inorganic carbon (DIC) inside corals remain unclear, as only pH has been measured while a necessary second parameter constrain carbonate chemistry missing. Here we report first ion ([CO 3 2− ]) measurements together with during light period. We observe sharp increases in [CO ] from gastric cavity...
The physiological response to individual and combined stressors of elevated temperature pCO2 were measured over a 24-day period in four Pacific corals their respective symbionts (Acropora millepora/Symbiodinium C21a, Pocillopora damicornis/Symbiodinium C1c-d-t, Montipora monasteriata/Symbiodinium C15, Turbinaria reniformis/Symbiodinium trenchii). Multivariate analyses indicated that played greater role altering response, with the greatest degree change occurring within M. monasteriata T....
Abstract. A quantification of carbon fluxes in the coastal ocean and across its boundaries with atmosphere, land, open is important for assessing current state projecting future trends uptake acidification, but this currently a missing component global budgeting. This synthesis reviews recent progress characterizing these North American ocean. Several observing networks high-resolution regional models are now available. Recent efforts have focused primarily on quantifying net air–sea...
More than four decades of alkalinity and pH data (late 1960s to 2010) from coastal bays along the northwestern Gulf Mexico were analyzed for temporal changes across a climatic gradient decreasing rainfall freshwater inflow, northeast southwest. The majority (16 out 27) these (including waters) showed long-term reduction in at rate 3.0-21.6 μM yr(-1). Twenty-two exhibited decreases 0.0014-0.0180 In contrast, northernmost bay increases both pH. Overall, two rates significant positive...
Using two complimentary approaches (pore water advection/diffusion/ reaction modeling and stable isotope mass balance calculations) we show that carbonate dissolution/reprecipitation occurs on early diagenetic time scales across a broad range of sediments the Great Bahamas Bank. The input oxygen into sediments, which strongly controls sediment dissolution, has major sources---belowground by seagrasses (that is, seagrass O~2~ pumping), permeability-driven advective pore exchange. relative...
In this study we estimate sediment carbonate dissolution rates for sandy sea grass sediments on the Bahamas Bank using an inverse pore‐water advection/diffusion/reaction model constrained by field observations. This accounts O 2 input to these sediments, and also parameterizes advection through permeable as a nonlocal exchange process. The resulting of are positively correlated with density, comparable previous rate estimates Florida Bay sediments. contrast, advective uptake decreased...
This study uses a simulation method to explore how estuarine pH is affected by mixing between river water, anthropogenic CO 2 enriched seawater, and respiration. Three rivers with different levels of weathering products (Amazon, Mississippi, St. Johns) are selected for this simulation. The results indicate that estuaries receive low moderate (Amazon exhibit maximum decrease in the midsalinity region as result intrusion. coincides previously unrecognized mid‐salinity minimum buffer zone...
Abstract Given projected changes in river flow to coastal regions worldwide due climate change and increasing human freshwater demands, it is necessary determine the role hydrology plays regulating biogeochemistry of estuaries. A climatic gradient exists along Texas coast where inflow balance ranges from hydrologically positive negative (where evaporation exceeds inflow) within a narrow latitudinal band, providing natural experiment for examining effects. Four estuaries ranging mesosaline...
Beginning in 2015, the United States Environmental Protection Agency’s (EPA’s) National Estuary Program (NEP) started a collaboration with partners seven estuaries along East Coast (Barnegat Bay; Casco Bay), West (Santa Monica San Francisco Tillamook and Gulf of Mexico (GOM) (Tampa Mission-Aransas Estuary) to expand use autonomous monitoring partial pressure carbon dioxide ( p CO 2 ) pH. Analysis high-frequency (hourly sub-hourly) coastal acidification data including , pH, temperature,...
Ocean acidification (OA) has resulted in global-scale changes ocean chemistry, which can disturb marine organisms and ecosystems. Despite its extensively populated coastline, many marine-dependent communities, valuable economies, the Gulf of Mexico (GOM) remains a relatively understudied region with respect to acidification. In general, warm waters GOM are better buffered from compared higher latitude seas, yet long-term been documented several regions. OA within is recognized as spatially...