A5077040357- Marine and coastal ecosystems
- Marine Biology and Ecology Research
- Coral and Marine Ecosystems Studies
- Coastal wetland ecosystem dynamics
- Ocean Acidification Effects and Responses
- Isotope Analysis in Ecology
- Marine Bivalve and Aquaculture Studies
- Soil and Water Nutrient Dynamics
- Marine and coastal plant biology
- Marine and fisheries research
- Groundwater and Isotope Geochemistry
- Atmospheric and Environmental Gas Dynamics
- Methane Hydrates and Related Phenomena
- Wastewater Treatment and Nitrogen Removal
- Microbial Community Ecology and Physiology
- Coastal and Marine Management
- Water Quality and Pollution Assessment
- Fish Ecology and Management Studies
- Coastal and Marine Dynamics
- Atmospheric chemistry and aerosols
- Geology and Paleoclimatology Research
- Aquatic Ecosystems and Phytoplankton Dynamics
- Hydrology and Watershed Management Studies
- Water Resources and Management
- Soil erosion and sediment transport
Southern Cross University
2016-2025
British Geological Survey
2022
Lincoln University - Pennsylvania
2022
University of Southern California
2018-2019
Southern California University for Professional Studies
2018-2019
University of California, Los Angeles
2018-2019
Lismore Base Hospital
2014-2019
City University of New York
2019
Université de Montréal
2019
Leibniz Institute of Freshwater Ecology and Inland Fisheries
2019
Abstract Policies aiming to preserve vegetated coastal ecosystems (VCE; tidal marshes, mangroves and seagrasses) mitigate greenhouse gas emissions require national assessments of blue carbon resources. Here, we present organic (C) storage in VCE across Australian climate regions estimate potential annual CO 2 emission benefits conservation restoration. Australia contributes 5–11% the C stored globally (70–185 Tg aboveground biomass, 1,055–1,540 upper 1 m soils). Potential from current losses...
A majority of the global net primary production mangroves is unaccounted for by current carbon budgets. It has been hypothesized that this “missing carbon” exported as dissolved inorganic (DIC) from subsurface respiration and groundwater (or pore‐water) exchange driven tidal pumping. We tested hypothesis measuring concentrations δ 13 C values DIC, organic (DOC), particulate (POC), along with radon ( 222 Rn, a natural submarine discharge tracer), in creek Moreton Bay, Australia....
Ocean acidification refers to the lowering of ocean's pH due uptake anthropogenic CO2 from atmosphere. Coral reef calcification is expected decrease as oceans become more acidic. Dissolving calcium carbonate (CaCO3) sands could greatly exacerbate loss associated with reduced but presently poorly constrained. Here we show that CaCO3 dissolution in sediments across five globally distributed sites negatively correlated aragonite saturation state (Ωar) overlying seawater and sediment 10-fold...
Water and sediment methane emissions have the potential to offset “blue carbon” burial in mangrove coastal ecosystems.
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 229:43-59 (2002) - doi:10.3354/meps229043 Comparison of carbon production and decomposition, benthic nutrient fluxes denitrification in seagrass, phytoplankton, microalgae- macroalgae-dominated warm-temperate Australian lagoons Bradley D. Eyre*, Angus J. P. Ferguson Centre for Coastal Management, Southern...
Coral reef net ecosystem calcification (NEC) has decreased for many Caribbean reefs over recent decades primarily due to a combination of declining coral cover and changing benthic community composition. Chemistry-based approaches calculate NEC utilize the drawdown seawater total alkalinity (TA) combined with residence time an instantaneous measurement NEC. Census-based combine annual growth rates structural complexity estimate occurring timescales. Here, was calculated Hog Reef in Bermuda...
Abstract Calcium carbonates (CaCO 3 ) often accumulate in mangrove and seagrass sediments. As CaCO production emits CO 2 , there is concern that this may partially offset the role of Blue Carbon ecosystems as sinks through burial organic carbon (C org ). A global collection data on inorganic rates inorg 12% mass) revealed 0.8 TgC yr −1 15–62 ecosystems, respectively. In seagrass, correspond to an 30% net sequestration. However, a mass balance assessment highlights C mainly supported by...
The effect of nutrient enrichment on mangrove sediment accretion and carbon accumulation rates is poorly understood. Here we quantify through radionuclide tracers to determine organic (OC), total nitrogen (TN), phosphorus (TP) during the previous 60 years in both a nutrient-enriched pristine forest within same geomorphological region southeastern Brazil. receiving high loads has accumulated OC, TN, TP at that are fourfold, twofold, eightfold respectively, higher than those from undisturbed...
[1] Little is known about how biogeochemical processes in permeable sediments affect the pH of coastal waters. We demonstrate that seawater recirculation sands can play a major role proton (H+) cycling coral reef lagoon. The diel range (up to 0.75 units) Heron Island lagoon was broadest ever reported for waters, and night-time (7.69) comparable worst-case scenario predictions 2100. net contribution coarse carbonate whole system H+ fluxes only 9% during day, but approached 100% at night when...
Groundwater discharge could be a major, but as yet poorly constrained, source of carbon dioxide to lakes, wetlands, rivers, estuaries, and coastal waters. We demonstrate how coupled radon ((222)Rn, natural groundwater tracer) pCO(2) measurements in water can easily performed using commercially available gas analysers. Portable, automated analysers were connected series closed air loop was established with equilibration devices (GED). experimentally assessed the advantages disadvantages six...
Estuaries are ‘hot spots’ in the global carbon cycle, yet data on dynamics, particular air‐sea CO 2 fluxes, from autotrophic systems rare. Estuarine budgets were constructed for three geomorphically distinct warm temperate Australian estuaries over an annual cycle. All net autotrophic, with ecosystem metabolism (NEM) ranging 8 ± 13.4 molC m −2 yr −1 to 10 14 . There was a flux of atmosphere between 0.4 0.6 and 0.9 Loading dissolved inorganic (DIC) organic (DOC) varied markedly within...
Worldwide, coral reef ecosystems are experiencing increasing pressure from a variety of anthropogenic perturbations including ocean warming and acidification, increased sedimentation, eutrophication, overfishing, which could shift reefs to condition net calcium carbonate (CaCO3) dissolution erosion. Herein, we determine the calcification potential relative balance organic carbon metabolism (net community production; NCP) inorganic calcification; NCC) within 23 locations across globe. In...
The abundant and diverse microorganisms that inhabit aquatic systems are both determinants indicators of health, providing essential ecosystem services such as nutrient cycling but also causing harmful blooms disease in impacted habitats. Estuaries among the most urbanized coastal ecosystems a consequence experience substantial environmental pressures, ideal to study influence anthropogenic inputs on microbial ecology. Here we use highly Sydney Harbour, Australia, model system investigate...
Biogenic dimethylsulfide (DMS) and its main precursors, dimethylsulfoniopropionate (DMSP) dimethylsulfoxide (DMSO), are potential scavengers of reactive oxygen species in marine algae, these dimethylated sulfur compounds (DSC) could take part the algal antioxidant system. In this study, a link between DSC production capacity (AOC) Acropora aspera reef coral was investigated under range environmental factors (temperature, light, salinity, air exposure) that can lead to oxidative stress...