Ocean Carbon Cycle and Acidification
Citizenship: Halifax, Nova Scotia, Canada
Accreditation: BEng. Mechanical Engineering, MASc. Materials Engineering
Optimization and Use of Autonomous Underwater Vehicles within a Co-ordinated Ocean Network for Scientific Observation
My research interests lie in the development and use of autonomous or remotely operated vehicles and their associated instrumentation for oceanographic measurement and exploration. Autonomous Underwater Vehicles (AUVs) have special potential for application within co-ordinated networks of marine vehicles, such as MOSES (Modular Observation Solutions for Earth Systems) or ROBEX (Robotic Exploration of Extreme Environments), both major initiatives of Germany’s Helmholtz Association. These networks include a stationary system that acts as a “home base” for energy supply and data exchange as well as mobile elements that can be deployed to explore large-scale, rapidly evolving ocean events. Technological advances in robotics and autonomy have enhanced our ability to provide real-time data of a large area, improving our understanding of ocean phenomena that have traditionally suffered from undersampling. This understanding is especially important today as we face unprecedented climate change and damage to our oceans from human interference.
Research Interests: Sediment biogeochemistry, nitrogen cycling, and ecosystem modelling.
Paleooceanography and sediment transport (Research Focus: Export Marine Export Production and Atmospheric Dust; Sea Surface Temperature and Storminess in the Western North Atlantic-last 2000 yrs.; Contamination of Coastal Sediments)
Citizenship: Montreal, Quebec, Canada
Accreditation: B.Sc. Earth and Atmospheric Sciences - Université du Québec à Montréal (UQÀM), Montréal, Quebec
Coastal Fog Microphysics and Chemical Composition
My project focuses on the microphysical properties of marine fog and aims at further understanding the ability of particles to form droplets in supersaturated conditions. Field measurements, laboratory experiments and climatological data are used to investigate fog at different levels. Our ultimate goal is to be able to not only predict the occurrence of fog, but to accurately predict its formation, dissipation and density.
Paleoceanography and sedimentary biogeochemistry
Remote sensing and modeling of atmospheric composition
Nitrogen dynamics and hypoxia in coastal regions
In my PhD project, I will study the nitrogen cycling in the Bedford basin. The coastal water are increasingly prone to anthropogenic nutrient input, which leads to eutrophication and resulting consumption of dissolved oxygen in water. Progressive change in oxygen concentration leads to shift in the redox reactions for nitrogen cycling. In my project I will collect field data and will apply mathematical approach to study this mechanism and will look for positive or negative feedbacks involved in such redox driven nitrogen cycling.
Modelling and prediction of marine extreme events, and physical oceanography of coastal waters.
Citizenship: Assis, São Paulo, Brazil
Accreditation: M.Sc. in Physical, Chemical and Geological Oceanography (FURG) - University of Rio Grande, Brazil
Air-Sea CO2 Fluxes Spatio-Temporal Variability in the North Atlantic Ocean
My Phd project will use new field data from Volunteer Observing Ships (VOS), wave gliders and moorings to estimate air-sea fluxes of CO2 in the NW Atlantic Ocean. These new data, combined with existing data, will be used to establish accurate, year-round estimates of air-sea CO2 fluxes. My project will also explore an intercomparison of different underway pCO2 systems and platforms.
Marine carbon cycle, CO2 air-sea fluxes
Ocean-atmosphere exchange, carbon cycle, observing technologies.
Citizenship: Yun-Gui Plateau, China
Accreditation: M.Sc. in Oceanography - School of Marine Sciences, USA
Temporal and Spatial Variability of Circulation and Hydrography over the Eastern Canadian Shelf and Adjacent Northwest Atlantic Ocean
The circulation and hydrographic variability in the eastern Canadian shelf and its adjacent deep waters has significant implication on not only coastal ecosystems, but also the North Atlantic Thermohaline Circulation. I am using a coupled ocean-ice circulation model, based on the Nucleus for European Modelling of the Ocean (NEMO) to examine main physical processes affecting the temporal and spatial variability of: (1) the buoyancy fluxes from the Labrador Current to the North Atlantic Current to the east of the Grand Banks of Newfoundland and (2) the shelf-ocean exchange on the eastern Canadian Shelf.
Citizenship: Köln, Germany
Accreditation: M.Sc. in Aquatic Ecology - Lund University, Sweden
Marine Ecosystems and Fisheries in the North Atlantic - Responses and Management Implications Under Climate Change
Major biological changes in marine ecosystems have been associated with a changing climate both in the past and into the future. These changes have significant consequences for marine ecosystem structures and functioning, associated ecosystem services, and marine conservation measures. How these changes may play out on regional or ocean-basin scale is still largely unknown. My Ph.D. research addresses expected future changes in ecosystem dynamics and marine fisheries in the North Atlantic Ocean using meta-analytical techniques, spatio-temporal trend analysis, and mapping approaches. In this context implications for marine management and conservation on regional and trans-Atlantic scales will be identified in order to inform the development of effective management and adaptation policies.
Citizenship: Bremen, Germany
Accreditation: M.Sc. in Marine Biology - University of Bremen, Germany
Interactions between large Marine Protected Areas and Global Fisheries
Out of the multiple anthropogenic ocean uses fishing is one of the biggest factors impacting marine ecosystems and biodiversity. Despite this knowledge, we have only limited understanding of how much fishing is happening, when, how, and where, especially in remote areas and the High Seas. To be able to efficiently coordinate fisheries management and conservation measures a better picture of the behaviour of the global fishing fleets is necessary. A novel tool to explore the movements of vessels on the oceans on a global scale is satellite AIS (S-AIS). I am using S-AIS tracks to detect, classify and map global fishing vessel movements and relate it to marine protected areas to see if fishing effort is attracted or displaced and how the fishing fleets interact with the protected areas.
My lab studies marine microbes and their influence on global biogeochemistry. I am particularly interested in 1) the roles of micronutrients in shaping marine microbial communities and 2) in using quantitative, mass spectrometry based techniques to study microbial activity.
Human-induced changes in marine populations, communities and ecosystems
Understanding how private-and state-based governance can combine for cooperation of common pool marine resources.
Coastal and ocean management, fisheries governance, regional ocean governance, science/policy interface.
Citizenship: Basel, Switzerland
Accreditation: MMM Marine Management - Dalhousie University, Canada
Understanding how the Western and Inuit knowledge systems can improve the sustainability of fisheries in Nunavut, Canada
My PhD research is part of the Fish-WIKS (Fisheries – Western and Indigenous Knowledge Systems) project which explores Western and distinct indigenous knowledge systems to inform fisheries governance and management in Canada. I will investigate how the different processes by which Inuit and Western science acquire, transmit, value and use knowledge can be harnessed to enhance the current regime of decision-making and consequently improve fisheries management in Nunavut.
Evolutionary ecology & biology of fishes.
Marine microbial genomics and marine biogeochemistry.
Metaproteomic insights into marine microbial community function and biogeochemistry
I am studying how microbes function, and how these functions influence large processes in the ocean. To accomplish this, I primarily use metaproteomics to profile microbial communities. My project combines various bioinformatic approaches, laboratory-based experimentation, and biogeochemical modelling.
My lab study's the factors that regulate populations of benthic marine invertebrates of ecological and economic importance, using a combination of approaches, such as field sampling, laboratory experiments and mathematical modelling.
Corporate Social Responsibility in the North American and European tuna industry
My research focuses on understanding why and how tuna companies take responsibility for the sustainability of global tuna stocks. Specifically, I will investigate what issues tuna companies try to address, which tools these employ to influence the sustainable use of tuna resources and measuring the impacts of those activities.
Geophysical fingerprints of an exhumed serpentinized mantle domain at the ultraslow Southwest Indian Ridge and their application to the rifted margins of Eastern Canada
I am interested in using seismic waves to infer the inner Earth's structure, both at lithospheric and asthenospheric levels. During my Ph.D. I will first study the ultraslow-spreading Southwest Indian Ridge, where the rate of spreading has resulted in broad exposures of non-volcanic seafloor, and thus, it is believed that this setting may be analogous to early rifting stages of the non-volcanic rifted margins. I aim to assess the geophysical fingerprints of exhumed serpentinized mantle-derived rocks exposed at the seafloor of this mid-ocean ridge to later apply them to the magma-poor rifted margins of Eastern Canada. In the latter, a thick post-rift sedimentary package hampers the prediction of serpentinized mantle domains in the crust. To carry out the analysis I will use marine seismic refraction and reflection data to constrain seismic velocity models and reflection structure of the oceanic lithosphere, respectively.
Research Topics: Acoustical oceanography, passive acoustic remote sensing, instrument design and signal processing
Investigations of mid-ocean ridges, subduction zones, rifted margins, and sea level change using controlled source seismology
Acoustics of Hydrothermal Vents
My research field of interest is underwater acoustics, Where I primarily focus on the measurement and characterization of background noise in Ocean generated by natural processes. In my PhD research, I will be working on the physical properties of hydrothermal vents based on passive acoustic measurements. The measured noise data will be used to study the spectral and spatial characteristics of hydrothermal vent. Based on acoustic data analysis and appropriate sound propagation modelling the sound generating mechanism and physical properties of vents will be studied. Once the acoustic properties of hydrothermal vents are understood, background sound measurement can be later used for the localization of new vent sites. Passive acoustics, signal processing, sound propagation modelling and geoacoustic inversion are my topics of interest in Ocean acoustics.
Citizenship: Haselunne, Germany
Accreditation: M.Sc. in Marine Geosciences - Christian-Albrechts-Universität in Kiel, Germany
Reassessment of the 1929 Grand Banks submarine landslide
I am highly fascinated by the multidisciplinary field of marine geosciences and its unexplored depths. Geophysical techniques offer the unique possibility to collect, analyse and interpret data from areas, which are too extensive for high resolution sampling or difficult to access. I am especially interested in their application to potential high risk areas, such as submarine slides on continental shelves.Therefore my PhD-thesis will be focussed on the analysis of seismic and hydro-acoustic data in order to analyse and interpret seafloor structures and possible submarine hazards.
Intelligent autonomy for marine autonomous vehicles, multi-agent systems, underwater vehicle and tow body dynamics, underwater acoustics
Citizenship: United States
Using ROVs for Surveying In Shallow Water Systems
My research focuses on engineering a remotely operated and autonomous hovercraft to collect and analyze sonar data in very shallow waters (<1m) and in areas where the current is strong and tidally forced. These sonar data will be used for bathymetric surveys, habitat mapping, and other analyses with applications to large scale processes such as sea level rise and how it affects these small-scale environments.