Fields of Research

Chemical oceanography
Biological oceanography
Marine and estuarine ecology (incl. marine ichthyology)
Ecological impacts of climate change and ecological adaptation
Physical oceanography
Phycology (incl. marine grasses)
Atmospheric aerosols
Microbial ecology
Atmospheric composition, chemistry and processes
Ecosystem function
Oceanography
Environmental management
Climate change processes
Carbon sequestration science
Global change biology
Climate change science
Environmental engineering
Invertebrate biology
Marine geoscience
Microbial genetics
Environmental law
Natural resource management
Gravimetrics
Conservation and biodiversity
Environmentally sustainable engineering
Microtechnology
Analytical spectrometry
Environmental education and extension
Flexible manufacturing systems
Intelligent robotics
Environment and climate finance
Biological physics
Glaciology
Ocean engineering
Geochronology
Environmental sociology
Climate change law

Research Objectives

Measurement and assessment of marine water quality and condition
Ecosystem adaptation to climate change
Climate change adaptation measures (excl. ecosystem)
Antarctic and Southern Ocean oceanic processes
Oceanic processes (excl. in the Antarctic and Southern Ocean)
Expanding knowledge in the environmental sciences
Climate change mitigation strategies
Effects of climate change on Antarctic and sub-Antarctic environments (excl. social impacts)
Atmospheric composition (incl. greenhouse gas inventory)
Expanding knowledge in the earth sciences
Climate change models
Expanding knowledge in the biological sciences
Assessment and management of coastal and estuarine ecosystems
Assessment and management of pelagic marine ecosystems
Understanding climate change
Assessment and management of terrestrial ecosystems
Effects of climate change on New Zealand (excl. social impacts)
Climate variability (excl. social impacts)
Protection and conservation of Antarctic and Southern Ocean environments
Air quality
Mitigation of climate change
Management of greenhouse gas emissions from plant production
Measurement and assessment of estuarine water quality
Biodiversity in Antarctic and Southern Ocean environments
Measurement and assessment of freshwater quality (incl. physical and chemical conditions of water)
Assessment and management of Antarctic and Southern Ocean ecosystems
Global effects of climate change (excl. Australia, New Zealand, Antarctica and the South Pacific) (excl. social impacts)
Expanding knowledge in engineering
Effects of climate change on Australia (excl. social impacts)
Market-based mechanisms
Coastal and estuarine systems and management
Eco-verification (excl. environmental lifecycle assessment)
Clinical health
Understanding the impact of natural hazards caused by climate change
Energy storage (excl. hydrogen and batteries)
Atmospheric processes and dynamics
Climatological hazards (e.g. extreme temperatures, drought and wildfires)
Assessment and management of benthic marine ecosystems
Marine systems and management

Career Best Publications

Research Publications

'Sinking dead' - how zooplankton carcasses contribute to particulate organic carbon flux in the subantarctic Southern Ocean; Limnology and Oceanography
In-situ behavioural and physiological responses of Antarctic microphytobenthos to ocean acidification; Scientific Reports
A climate change atlas for the ocean; Oceanography
A comparison of biogenic iron quotas during a diatom spring bloom using multiple approaches; Biogeosciences
A new database to explore the findings from large-scale ocean iron enrichment experiments; Oceanography
A ventilation-based framework to explain the regeneration-scavenging balance of iron in the ocean; Geophysical Research Letters
Acquisition of iron bound to strong organic complexes, with different Fe binding groups and photochemical reactivities, by plankton communities in Fe-limited subantarctic waters; Global Biogeochemical Cycles
Adaptive strategies by Southern Ocean phytoplankton to lessen iron limitation: Uptake of organically complexed iron and reduced cellular iron requirements; Limnology and Oceanography
Aerosol iron deposition to the surface ocean - modes of iron supply and biological responses; Marine Chemistry
An automated pH-controlled culture system for laboratory-based ocean acidification experiments; Limnology and Oceanography
An ocean climate change Atlas for New Zealand waters
Antarctica and the Southern Ocean: insights from the 2022 IPCC WGII report
Assessment of leaching protocols to determine the solubility of trace metals in aerosols; Talanta
Atmospheric trace metal deposition from natural and anthropogenic sources in Western Australia; Atmosphere
Atmospheric trace metal deposition near the Great Barrier Reef, Australia; Atmosphere
Bacterial vs. zooplankton control of sinking particle flux in the ocean’s twilight zone; Limnology and Oceanography
Barium in twilight zone suspended matter as a potential proxy for particulate organic carbon remineralization: results for the North Pacific; Deep-Sea Research Part 2
Before ocean acidification: calcifier chemistry lessons; Journal of Phycology
Beyond ocean acidification; Nature Geoscience
Bioavailable iron titrations reveal oceanic Synechococcus ecotypes optimized for different iron availabilities; ISME Communications
Biogeochemical controls of surface ocean phosphate; Science Advances
Biogeochemical extremes and compound events in the ocean; Nature
Biogeochemical impacts of dust on the global carbon cycle; Mineral Dust: A Key Player in the Earth System
Biogeochemical iron budgets of the Southern Ocean south of Australia: Decoupling of iron and nutrient cycles in the subantarctic zone by the summertime supply; Global Biogeochemical Cycles
Biogeochemistry of iron in Australian dust: from eolian uplift to marine uptake; Geochemistry Geophysics Geosystems
Biogeography of Southern Ocean prokaryotes: a comparison of the Indian and Pacific sectors; Environmental Microbiology
Biological ramifications of climate-change mediated oceanic multi-stressors; Nature Climate Change
Biological responses to environmental heterogeneity under future ocean conditions; Global Change Biology
Biotic and abiotic retention, recycling and remineralization of metals in the ocean; Nature Geoscience
Changing biogeochemistry of the Southern Ocean and its ecosystem implications; Frontiers in Marine Science
Climate change and Southern Ocean ecosystems I: how changes in physical habitats directly affect marine biota; Global Change Biology
Climate-mediated changes to mixed-layer properties in the Southern Ocean: assessing the phytoplankton response; Biogeosciences
Coastal ocean and shelf-sea biogeochemical cycling of trace elements and isotopes: lessons learned from GEOTRACES; Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Commercial ocean fertilization: Implications for harmful algal blooms; The 13th International Conference on Harmful Algae
Contribution of electroactive humic substances to the iron-binding ligands released during microbial remineralization of sinking particles; Geophysical Research Letters
Current understanding and challenges for oceans in a higher-CO₂ world
Deciphering diatom biochemical pathways via whole-cell proteomics; Aquatic Microbial Ecology
Designing the next generation of ocean iron fertilization experiments; Marine Ecology Progress Series
Developing a test-bed for robust research governance of geoengineering: the contribution of ocean iron biogeochemistry; Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Developing priority variables ('ecosystem Essential Ocean Variables' - eEOVs) for observing dynamics and change in Southern Ocean ecosystems; Journal of Marine Systems
Development of geopolitically relevant ranking criteria for geoengineering methods; Earth's Future
Diatom proteomics reveals unique acclimation strategies to mitigate Fe Limitation; PLoS ONE
Diatom traits regulate Southern Ocean silica leakage; National Academy of Sciences of The United States of America. Proceedings
Diel quenching of Southern Ocean phytoplankton fluorescence is related to iron limitation; Biogeosciences
Differential remineralization of major and trace elements in sinking diatoms; Limnology and Oceanography
Distinct iron cycling in a Southern Ocean eddy; Nature Communications
Diurnal fluctuations in seawater pH influence the response of a calcifying macroalga to ocean acidification; Proceedings of the Royal Society B
Ecosystem impacts of geoengineering: A review for developing a science plan
Eddy-induced carbon transport across the Antarctic Circumpolar Current; Global Biogeochemical Cycles
Effect of anthropogenic warming on microbial respiration and particulate organic carbon export rates in the sub-Antarctic Southern Ocean; Aquatic Microbial Ecology
Effects of multiple drivers of ocean global change on the physiology and functional gene expression of the coccolithophore Emiliania huxleyi; Global Change Biology
Effects of sinking velocities and microbial respiration rates on the attenuation of particulate carbon fluxes through the mesopelagic zone; Global Biogeochemical Cycles
Elemental quotas and physiology of a southwestern Pacific Ocean plankton community as a function of iron availability; Aquatic Microbial Ecology
Environmental control of open-ocean phytoplankton groups: now and in the future; Limnology and Oceanography
Environmental controls on the elemental composition of a Southern Hemisphere strain of the coccolithophore Emiliania huxleyi; Biogeosciences
Environmental controls on the growth, photosynthetic and calcification rates of a Southern Hemisphere strain of the coccolithophore Emiliania huxleyi; Limnology and Oceanography
Evaluation of aerosol iron solubility over Australian coastal regions based on inverse modeling: implications of bushfires on bioaccessible iron concentrations in the Southern Hemisphere; Progress in Earth and Planetary Science
Evidence for the impact of climate change on primary producers in the Southern Ocean; Frontiers in Ecology and Evolution
Evolution, microbes, and changing ocean conditions; Annual Review of Marine Science
Experimental evolution meets marine phytoplankton; Evolution
Experimental strategies to assess the biological ramifications of multiple drivers of global ocean change - a review; Global Change Biology
Exploring biogeochemical and ecological redundancy in phytoplankton communities in the global ocean; Global Change Biology
Exploring mechanisms for spring bloom evolution: contrasting 2008 and 2012 blooms in the southwest Pacific Ocean; Journal of Plankton Research
Exploring the ecology of the mesopelagic biological pump; Progress in Oceanography
FeCycle: attempting an iron biogeochemical budget from a mesoscale SF₆ tracer experiment in unperturbed low iron waters; Global Biogeochemical Cycles
Ferrioxamine siderophores detected amongst iron binding ligands produced during the remineralization of marine particles; Frontiers in Marine Science
Forecast ocean variability; Nature
Forensic carbon accounting: assessing the role of seaweeds for carbon sequestration; Journal of Phycology
Framing biological responses to a changing ocean; Nature Climate Change
Geopolitics of geoengineering; Nature Geoscience
Global assessment of ocean carbon export by combining satellite observations and food-web models; Global Biogeochemical Cycles
High abundances of cyanomyoviruses in marine ecosystems demonstrate ecological relevance; FEMS Microbiology Ecology
How do we overcome abrupt degradation of marine ecosystems and meet the challenge of heat waves and climate extremes?; Global Change Biology
Impact of Lagrangian sea surface temperature variability on Southern Ocean phytoplankton community growth rates; Global Biogeochemical Cycles
Implications for the mesopelagic microbial gardening hypothesis as determined by experimental fragmentation of Antarctic krill fecal pellets; Ecology and Evolution
Implications of large-scale iron fertilization of the oceans: introduction and synthesis; Marine Ecology Progress Series
Influence of ocean warming and acidification on trace metal biogeochemistry; Marine Ecology - Progress Series
Inorganic carbon uptake by Southern Ocean phytoplankton; Limnology and Oceanography
Insights into the biogeochemical cycling of iron, nitrate, and phosphate across a 5,300 km South Pacific Zonal Section (153°E-150°W); Global Biogeochemical Cycles
Iron availability influences the tolerance of Southern Ocean phytoplankton to warming and elevated irradiance; Frontiers in Marine Science
Iron stable isotopes track pelagic iron cycling during a subtropical phytoplankton bloom; Proceedings of the National Academy of Sciences of the United States of America
Iron–light interactions differ in Southern Ocean phytoplankton; Limnology and Oceanography
Kerguelen Axis 2015-16: Marine science activities in support of research and observing of marine ecosystems in the vicinity of the Kerguelen Axis during 2015-16 austral summer
Long-term conditioning to elevated pCO₂ and warming influences the fatty and amino acid composition of the diatom Cylindrotheca fusiformis; PLoS One
Mapping phytoplankton iron utilization: Insights into Southern Ocean supply mechanisms; Journal of Geophysical Research-Space Physics
Marine phytoplankton and the changing ocean iron cycle; Nature Climate Change
Marine phytoplankton temperature versus growth responses from polar to tropical waters – outcome of a scientific community-wide study; PLoS One
Metabolically induced pH fluctuations by some coastal calcifiers exceed projected 22nd century oceanacidification: a mechanism for differential susceptibility?; Global Change Biology
Metrics that matter for assessing the ocean biological carbon pump; Proceedings of the National Academy of Sciences of the United States of America
Microbes in a sea of sinking particles; Nature Microbiology
Microbial competition in the subpolar southern ocean: an Fe–C Co-limitation experiment; Frontiers in Marine Science
Microbial control of diatom bloom dynamics in the open ocean; Geophysical Research Letters
Modes of interactions between environmental drivers and marine biota; Frontiers in Marine Science
Multi-faceted particle pumps drive carbon sequestration in the ocean; Nature
Ocean acidification increases the accumulation of toxic phenolic compounds across trophic levels; Nature Communications
Ocean fertilization for geoengineering: A review of effectiveness, environmental impacts and emerging governance; Process Safety and Environmental Protection
Ocean Iron Cycle; Geophysical Monograph Series: Surface Ocean - Lower Atmosphere Processes
Ocean Nutrients; Geophysical Monograph Series: Surface Ocean - Lower Atmosphere Processes
Ocean-atmosphere interactions of particles; Ocean-Atmosphere Interactions of Gases and Particles
Origin, transport and deposition of aerosol iron to Australian coastal waters; Atmospheric Environment
Pelagic iron cycling during the subtropical spring bloom, east of New Zealand; Marine Chemistry
Perspectives and integration in SOLAS science; Ocean-Atmosphere Interactions of Gases and Particles
Photosynthetic adaptation to low iron, light, and temperature in Southern Ocean phytoplankton; Proceedings of the National Academy of Sciences of the United States of America
Physiological responses of a Southern Ocean diatom to complex future ocean conditions; Nature Climate Change
Physiology and iron modulate diverse responses of diatoms to a warming Southern Ocean; Nature Climate Change
Phytoplankton processes. Part 2: rates of primary production and factors controlling algal growth during the Southern Ocean Iron RElease Experiment (SOIREE); Deep-Sea Research Part 2
Phytoplankton responses to bacterially regenerated iron in a Southern Ocean eddy; Microorganisms
Polar Regions; IPCC Special Report on the Ocean and Cryosphere in a Changing Climate
Polar Regions
Position Analysis: Ocean Fertilisation
Position analysis: ocean fertilisation
Potential negative effects of ocean afforestation on offshore ecosystems; Nature Ecology and Evolution
Predicting and verifying the intended and unintended consequences of large-scale ocean iron fertilization; Marine Ecology Progress Series
Primary, new and export production in the NW Pacific subarctic gyre during the vertigo K2 experiments; Deep-Sea Research Part
Processes and patterns of oceanic nutrient limitation; Nature Geoscience
Production of viruses during a spring phytoplankton bloom in the South Pacific Ocean near of New Zealand; FEMS Microbiology Ecology
Putting the silicon cycle in a bag: field and mesocosm observations of silicon isotope fractionation in subtropical waters east of New Zealand; Marine Chemistry
Quantifying the surface– subsurface biogeochemical coupling during the VERTIGO ALOHA and K2 studies; Deep-Sea Research Part 2
Ranking geo-engineering schemes; Nature Geoscience
Rate and fate of dissolved organic carbon release by seaweeds: a missing link in the coastal ocean carbon cycle
Rate and fate of dissolved organic carbon release by seaweeds: a missing link in the coastal ocean carbon cycle
Relationships between nutrient stocks and inventories and phytoplankton physiological status along an oligotrophic meridional transect in the Tasman Sea; Deep-Sea Research. Part 1: Oceanographic Research Papers
Remineralization of upper ocean particles: Implications for iron biogeochemistry; Limnology and Oceanography
Remote assessment of the fate of phytoplankton in the Southern Ocean sea-ice zone; Nature Communications
Report Card: Potential Tipping Points for life in the Southern Ocean
Resource colimitation drives competition between phytoplankton and bacteria in the Southern Ocean; Geophysical Research Letters
RESPIRE: an in situ particle interceptor to conduct particle remineralization and microbial dynamics studies in the oceans’ Twilight Zone; Limnology and Oceanography: Methods
Resupply of mesopelagic dissolved iron controlled by particulate iron composition; Nature Geoscience
Role of the seasonal cycle in coupling climate and carbon cycling in the Subantarctic Zone; Eos
Saccharides enhance iron bioavailability to Southern Ocean phytoplankton; Proceedings of the National Academy of Sciences
Scientists' warning to humanity: microorganisms and climate change; Nature Reviews Microbiology
Seeking natural analogs to fast-forward the assessment of marine CO₂ removal; Proceedings of the National Academy of Sciences of the United States of America
Shedding light on processes that control particle export and flux attenuation in the twilight zone of the open ocean; Limnology and Oceanography
Short- and long-term conditioning of a temperate marine diatom community to acidification and warming; Philosophical Transactions of The Royal Society B: Biological Sciences
Some observations on the biogeochemical cycling of zinc in the Australian sector of the Southern Ocean: a dedication to Keith Hunter; Marine and Freshwater Research
Spinning the ‘‘Ferrous Wheel’’: the importance of the microbial community in an iron budget during the FeCycle experiment; Global Biogeochemical Cycles
Spring blooms and annual cycles of phytoplankton: a unified perspective; Journal of Plankton Research
Subsurface chlorophyll-a maxima in the Southern Ocean; Frontiers in Marine Science
Surface ocean-lower atmosphere study: scientific synthesis and contribution to Earth system science; Anthropocene
Surface-water iron supplies in the Southern Ocean sustained by deep winter mixing; Nature Geoscience
Temporal changes in particle-associated microbial communities after interception by nonlethal sediment traps; FEMS Microbiology Ecology
Temporal variation of dissolved methane in a subtropical mesoscale eddy during a phytoplankton bloom in the southwest Pacific Ocean; Progress in Oceanography
Testing the climate intervention potential of ocean afforestation using the Great Atlantic Sargassum Belt; Nature Communications
The biogeochemical cycle of iron in the ocean; Nature Geoscience
The decline and fate of an iron-induced subarctic phytoplankton bloom; Nature
The evolution and termination of an iron-induced mesoscale bloom in the northeast subarctic Pacific; Limnology and Oceanography
The impact of a Southern Ocean cyclonic eddy on mesopelagic micronekton; Journal of Geophysical Research: Oceans
The importance of Antarctic krill in biogeochemical cycles; Nature Communications
The importance of bottom-up approaches to international cooperation in ocean science: the iron story; Oceanography
The integral role of iron in ocean biogeochemistry; Nature
The interplay between regeneration and scavenging fluxes drives ocean iron cycling; Nature Communications
The oceans' biological carbon pumps: framework for a research observational community approach; Frontiers in Marine Science
The ongoing need for rates: can physiology and omics come together to co-design the measurements needed to understand complex ocean biogeochemistry?; Journal of Plankton Research
The role of zooplankton in establishing carbon export regimes in the Southern Ocean – a comparison of two representative case studies in the Subantarctic region; Frontiers in Marine Science
The sensitivity of subsurface microbes to ocean warming accentuates future declines in particulate carbon export; Frontiers in Ecology and Evolution
Toward a regional classification to provide a more inclusive examination of the ocean biogeochemistry of iron-binding ligands; Frontiers in Marine Science
Toward quantifying the response of the oceans' biological pump to climate change; Frontiers in Marine Science
Toward trait-based food webs: universal traits and trait matching in planktonic predator-prey and host-parasite relationships; Limnology and Oceanography
Transitioning global change experiments on Southern Ocean phytoplankton from lab to field settings: insights and challenges; Limnology and Oceanography
Understanding the responses of ocean biota to a complex matrix of cumulative anthropogenic change; Marine Ecology - Progress Series
Using the L* concept to explore controls on the relationship between paired ligand and dissolved iron concentrations in the ocean; Marine Chemistry
Vertical distributions of iron-(III) complexing ligands in the Southern Ocean; Deep-Sea Research. Part 2: Topical Studies in Oceanography
VERTIGO (VERtical Transport In the Global Ocean): A study of particle sources and flux attenuation in the North Pacific; Deep Sea Research Part II: Topical Studies in Oceanography
Western Pacific atmospheric nutrient deposition fluxes, their impact on surface ocean productivity; Global Biogeochemical Cycles
Why are biotic iron pools uniform across high- and low-iron pelagic ecosystems?; Global Biogeochemical Cycles
Winter-time dissolved iron and nutrient distributions in the Subantarctic Zone from 40-52S; 155-160E; Geophysical Research Letters

Research Projects

A multi-institutional environmental radioactivity research centre; Australian Research Council (ARC)
Assessing status and trends of marine ecosystems in the Indian Sector of the Southern Ocean; Department of Environment and Energy (Cwth) (DoEE)
Assessment of habitats, productivity and food webs on the Kerguelen Axis in the Indian Sector of the Southern Ocean; Department of Environment and Energy (Cwth) (DoEE)
Australian Antarctic Program Partnership; Department of Industry, Innovation and Science (DoIIS)
Constraining external iron inputs and cycling in the southern extension of the East Australian Current; CSIRO-Commonwealth Scientific & Industrial Research Organisation (CSIRO)
Controls over Ocean Mesopelagic Interior Carbon Storage (COMICS); National Oceanography Centre (NOC)
Deciphering strategies polar phytoplankton employ to lessen iron limitation; Australian Research Council (ARC)
Geoengineering the Southern Ocean? A transdisciplinary assessment.; Australian Research Council (ARC)
HydroBox: A containerised hydrochemistry lab for Australian oceanography; Australian Research Council (ARC)
Iron: the key nutrient controlling Southern Ocean productivity; Australian Research Council (ARC)
Linking eddy physics and biogeochemistry in the Antarctic Circumpolar Current south of Tasmania; CSIRO-Commonwealth Scientific & Industrial Research Organisation (CSIRO)
Marie Curie International Outgoing Fellowship - IRON-IC; European Union (EU)
Marie Curie International Outgoing Fellowship - IRON-IC - CAPTURE; European Commission (EC)
Natural iron fertilisation of oceans around Australia: linking terrestrial dust and bushfires to marine biogeochemistry; CSIRO-Commonwealth Scientific & Industrial Research Organisation (CSIRO)
Negative Emissions: Survey and Outlook; Department of Environment and Energy (Cwth) (DoEE)
Ocean Carbon Markets in Australia and New Zealand; Blue Economy CRC Co (BECRC)
SOLACE - Southern Ocean Large Areal Carbon Export: quantifying carbon sequestration in subpolar and polar waters; CSIRO-Commonwealth Scientific & Industrial Research Organisation (CSIRO)
Surface and subsurface subantarctic Biogeochemistry of Carbon and Iron, Southern Ocean Time Series site; CSIRO-Commonwealth Scientific & Industrial Research Organisation (CSIRO)
The Australian Centre for Excellence in Antarctic Science; Australian Research Council (ARC)
The improvement of Biogeochemical Argo chlorophyll-a concentration data for largescale studies of Southern Ocean phytoplankton; Scientific Committee on Antarctic Research (SCAR)
IPCC author funding

Research Candidate Supervision

Controls on Organic Carbon Sequestration from the Naturally Iron-fertilised Phytoplankton Bloom over the Kerguelen Plateau