A5014847020- Coastal wetland ecosystem dynamics
- Coastal and Marine Dynamics
- Geology and Paleoclimatology Research
- Geological formations and processes
- Isotope Analysis in Ecology
- Soil erosion and sediment transport
- Aeolian processes and effects
- Plant responses to water stress
- Hydrology and Sediment Transport Processes
- Pacific and Southeast Asian Studies
- Marine and coastal plant biology
- Soil and Water Nutrient Dynamics
- Methane Hydrates and Related Phenomena
- Marine and fisheries research
- Marine Bivalve and Aquaculture Studies
- Fish Ecology and Management Studies
- Water Quality and Pollution Assessment
- Marine animal studies overview
- Freshwater macroinvertebrate diversity and ecology
- Marine and coastal ecosystems
- Tropical and Extratropical Cyclones Research
- Marine Biology and Ecology Research
- Hydrology and Watershed Management Studies
- Hydrocarbon exploration and reservoir analysis
- Oil Palm Production and Sustainability
National Institute of Water and Atmospheric Research
2014-2024
The University of Queensland
2015-2016
Abstract The majority of the world's mangrove forests occur on mostly mineral sediments fluvial origin. Two perspectives exist biogeomorphic development these forests, i.e. that mangroves are opportunistic, with forest primarily driven by physical processes, or alternatively biophysical feedbacks strongly influence sedimentation and resulting geomorphology. On Firth Thames coast, New Zealand, we evaluate two possible scenarios for sediment accumulation using high‐resolution sedimentary...
In New Zealand, climate change impacts have already been observed, and will increase in future decades. Average air temperature is predicted to warm by 2.1°C 2090 for a mid-range IPCC scenario (A1B), with larger increases possible some scenarios higher rates of emissions. Sea-level rise projections range between 0.18 – 0.59 m 2100, based on six emission excluding rapid dynamical changes polar ice-sheet flow. Global surface ocean pH decrease an additional 0.14 0.35 units similar expected...
Mangrove forests are vulnerable to accelerated sea-level rise associated with climate warming because they occupy a relatively narrow zone on the mid-to-upper-intertidal flats. The fate of these ecosystems largely depends their capacity accrete sediment at rate sufficient maintain elevation relative sea level. We investigated role biophysical processes and feedbacks controlling surface-elevation dynamics in fluvial sediment-rich Avicennia marina mangrove forest (New Zealand)...
Mangrove-habitat expansion has occurred rapidly over the last 50 years in 800 km2 Firth-of-Thames estuary (New Zealand). Mangrove forest now extends 1-km seaward of 1952 shoreline. The geomorphic development this muddy coast was reconstructed using dated cores (210Pb, 137Cs, 7Be), historical-aerial photographs and field observations to explore interaction between sediment processes mangrove ecology. Catchment deforestation (1850s–1920s) delivered millions m3 mud Firth, with intertidal flats...
Mangroves are recognized as a nature-based solution for coastal flood risk reduction. The salt-tolerant trees occur along sheltered coastlines in the tropics, subtropics and warm temperate regions globally. With their above-ground biomass mangroves reduce energy of long short-period waves, while they increase soil binding stability intertidal flats with below-ground biomass. This way, do not only provide functionality reduction by attenuating also persistence stabilizing shorelines creating...
Fine sediment continues to be a major diffuse pollution concern with its multiple effects on aquatic ecosystems. Mass concentrations (and loads) of fine are usually measured and modelled, apparently the assumption that environmental predictable from mass concentrations. However, some severe impacts may not correlate well concentration, notably those related light attenuation by suspended particles. Light per unit concentration particulate matter in waters varies widely particle size, shape...
Studies have shown the importance of submarine canyons as conduits land-derived organic carbon beyond coastal shelf into deep-sea where a single obvious river source can be identified. When there is more than one source, identifying which rivers contribute to canyon sediment matter technically challenging. Here, we compare two contrasting canyons: Hokitika Canyon, long, narrow, and gently sloping on west coast New Zealand; Kaikōura high productivity, short, steep close shore east Zealand....
Estuaries are impacted by catchment land use changes, driving degradation associated with eutrophication and alterations in sediment dynamics. Estuarine ecological monitoring has typically covered only recent periods, so magnitudes trajectories of often poorly described. Here, we develop a multi-method approach to hindcast historic estuary condition. We determined geochemical properties dated cores from two sites the eutrophic New River Estuary (NRE), Aotearoa Zealand. Mud, organic matter,...