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Deep Ocean Carbonate Chemistry and Glacial-Interglacial Atmospheric CO2 Changes
Deep Ocean Carbonate Chemistry Glacial-Interglacial Atmospheric CO2
2015/7/17
Changes in deep ocean carbonate chemistry have profound implications for glacial-interglacial atmospheric CO2 changes. Here, we review deep ocean carbonate ion concentration ([CO32–]) changes based on...
Carbon cycling hysteresis in permeable carbonate sands over a diel cycle: Implications for ocean acidification
Carbon cycling hysteresis permeable carbonate sands over a diel cycle ocean acidification
2014/4/2
Dissolved inorganic carbon, dissolved oxygen, H+, and alkalinity fluxes from permeable carbonate sediments at Heron Island (Great Barrier Reef) were measured over one diel cycle using benthic chambers...
Fluoride in coral aragonite related to seawater carbonate
coral, fluoride carbonate seawater temperature aragonite
2017/8/9
In order to elucidate the controlling factors for fluoride incorporation into coral aragonite (CaCO3), we determined the ratio of fluorine to calcium (F/Ca) in coral skeletons collected from Pohnpei (...
Calcium carbonate precipitation induced by the growth of the marine cyanobacterium Trichodesmium
Calcium carbonate precipitation marine cyanobacterium Trichodesmium
2014/4/17
In this laboratory study, we monitored the buildup of biomass and concomitant shift in seawater carbonate
chemistry over the course of a Trichodesmium bloom under different phosphorus (P) availabilit...
Carbonate mineral saturation states along the U.S. East Coast
Carbonate mineral saturation states the U.S. East Coast
2014/4/17
To assess the impact of ocean acidification on the carbonate chemistry of the shelf waters off the southeastern
United States (South Atlantic Bight [SAB]), we measured carbonate mineral saturation st...
Carbonate chemistry in the coastal zone responds more strongly to eutrophication than to ocean acidification
Carbonate chemistry in the coastal zone responds more strongly eutrophication ocean acidification
2014/4/16
The accumulation of anthropogenic CO2in the ocean has altered carbonate chemistry in surface waters since preindustrial times and is expected to continue to do so in the coming centuries. Changes in c...
Phosphorus release with carbonate dissolution coupled to sulfide oxidation in Florida Bay seagrass sediments
Phosphorus release carbonate dissolution
2014/4/17
We hypothesized that CaCO3 dissolution, coupled to sulfide oxidation, is an important mechanism by which
solid-phase inorganic P (iP) becomes available to seagrass in tropical carbonate sediments. To...
The role of organic acid exudates in liberating phosphorus from seagrass-vegetated carbonate sediments
The role of organic acid exudates liberating phosphorus seagrass-vegetated carbonate sediments
2014/4/21
Sediment-bound phosphorus (P) is a potential nutrient source for P-limited seagrasses inhabiting carbonate sediments. We explored the role of organic acid (OA) exudation by seagrasses in liberating mi...
Rates of carbonate dissolution in permeable sediments estimated from pore-water profiles: The role of sea grasses
carbonate dissolution permeable sediments estimated pore-water profiles sea grasses
2014/4/21
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 obs...
Imbalanced coral growth between organic tissue and carbonate skeleton caused by nutrient enrichment
Imbalanced coral growth organic tissue carbonate skeleton nutrient enrichment
2014/4/22
Effects of moderate nutrient enrichment (NO3- : <5 μmol L-1, PO43- : <0.3 μmol L-1) on two carbon (C) fixation rates (photosynthesis and calcification) of the zooxanthellate coral Acropora pulchra wer...
Respiration, calcification, and excretion of the invasive slipper limpet, Crepidula fornicata L.: Implications for carbon, carbonate, and nitrogen fluxes in affected areas
Respiration calcification excretion invasive slipper limpet Crepidula fornicata L. Implications for carbon carbonate nitrogen fluxes
2014/5/5
We measured in situ respiration, calcification, and excretion of the slipper limpet, Crepidula fornicata L., and considered both seasonal variations and individual size, to estimate the effects of thi...
The effect of carbonate chemistry on calcification and photosynthesis in the hermatypic coral Acropora eurystoma
The effect of carbonate chemistry calcification and photosynthesis hermatypic coral Acropora eurystoma
2014/5/4
The rise in atmospheric CO2 has caused significant decrease in sea surface pH and carbonate ion (CO3-2) concentration. This decrease has a negative effect on calcification in hermatypic corals and oth...
Responses of seagrass communities to fertilization along a gradient of relative availability of nitrogen and phosphorus in a carbonate environment
Responses of seagrass communities to fertilization a gradient of relative availability nitrogen and phosphorus carbonate environment
2014/5/19
Patterns of relative nutrient availability in south Florida suggest spatial differences regarding the importance of nitrogen (N) and phosphorus (P) to benthic primary producers. We did a 14-month in s...
Effects of microalgal communities on reflectance spectra of carbonate sediments in subtidal optically shallow marine environments
Effects of microalgal communities reflectance spectra carbonate sediments subtidal optically shallow marine environments
2014/5/19
This study was conducted in subtidal areas around Lee Stocking Island, Bahamas, to investigate how microalgal biomass and community structure affect hyperspectral reflectance of sediments. Hyperspectr...
Cycling of phosphorus maintains the production of microphytobenthic communities in carbonate sediments of a coral reef
Cycling of phosphorus maintains production of microphytobenthic communities carbonate sediments coral reef
2014/5/27
The phosphorus (P) cycle that maintains the production of microphytobenthic communities in carbonate sediments was investigated in the fringing Shiraho coral reef system located off the east coast of ...