ARVO Team

Organisation: University of Tasmania

Zanna is a Professor of chemical oceanography at the Institute for Marine and Antarctic Studies (IMAS) at the University of Tasmania. Her expertise is in ocean biogeochemistry and paleoceanography, with a focus on the ocean's carbon cycle: how it has changed in the past, how it is changing today, and how it might change in the future, including through deliberate manipulation via ocean alkalinity enhancement and ocean iron fertilisation. She has extensive seagoing experience including leadership of major research voyages.

Role within ARVO: Voyage lead and Chief Scientist. Zanna oversees all scientific activities and coordinates with the Marine National Facility to deliver the voyage. Her research focus is on assessing the observational limits of tracking the plume of added particles. She is also interested in characterising the ambient sediment alkalinity flux.

Academic profile webpage: https://discover.utas.edu.au/Zanna.Chase

Google Scholar: https://scholar.google.com/citations?user=hn4ySXEAAAAJ&hl=en

Organisation: University of Tasmania

Lennart is an Associate Professor at the Institute for Marine and Antarctic Studies (IMAS) of the University of Tasmania (UTAS) where he studies the cycling of elements in the ocean, particularly the carbon cycle. He investigates the efficiency and sustainability of marine CO₂ removal methods, including Ocean Alkalinity Enhancement, Ocean Afforestation, Ocean Iron Fertilization, and Artificial Upwelling.

Role within ARVO: Deputy voyage lead. Lennart's research focuses on the formation and loss of alkalinity during the ARVO study. He also investigates how organisms respond to the release of lime and associated changes in ocean chemistry.

Academic profile webpage: https://discover.utas.edu.au/lennart.bach

Google Scholar: https://scholar.google.com.au/citations?user=OU6AyyQAAAAJ&hl=en&oi=ao

LinkedIn or other social media: https://linkedin.com/in/lennart-bach-b3401b397

Homepage: https://applied-marine-biogeochemistry.org/

Organisation: Commonwealth Scientific and Industrial Research Organisation (CSIRO)

Harris is a postdoctoral research fellow at the Commonwealth Scientific and Industrial Research Organisation (CSIRO). He is a biogeochemical modeller, who studies carbon cycle dynamics and carbon dioxide removal in coastal waters around Australia.

Role within ARVO: Harris' research focusses on biogeochemical modelling to predict material dispersion and quantify potential carbon uptake.

Academic profile webpage: https://research.csiro.au/cem/people/

Google Scholar: https://scholar.google.com.au/citations?user=3-TuOf0AAAAJ&hl=en

Organisation: University of Queensland

Helen is a Professor in the School of the Environment, University of Queensland where she studies ocean circulation and biogeochemical processes, including carbon cycling in the ocean. She investigates the natural carbon fluxes and cycling in the ocean between the sediments, water and atmosphere from a local to regional scale, from the coastal to the deep ocean.

Role within ARVO: Helen is a chief investigator on the voyage and will focus on the carbon in the sediments and incubation experiments.

Academic profile webpage: https://environment.uq.edu.au/profile/14190/helen-bostock

Google Scholar: https://scholar.google.com/citations?user=ZTQ3JPQAAAAJ&hl=en&oi=ao

LinkedIn or other social media: Bluesky @oceanhelen.bsky.social

Organisation: Australian National University

Michael is a Professor at the Australian National University (ANU) whose research explores the role of trace metals, isotopes, and alkalinity in regulating ocean productivity, carbon cycling, and climate processes. He is interested studying how environmental change affects phytoplankton, coral reefs, and other marine ecosystems.

Role within ARVO: Michael's research focuses on identifying alkalinity thresholds that maximise carbon dioxide removal while maintaining seawater stability. He is particularly interested in how different alkalinity source inputs behave at elevated calcium carbonate saturation states and the factors that control their long-term persistence in the ocean.

Academic profile webpage: https://earthsciences.anu.edu.au/people/professor-michael-ellwood#affiliations

Google Scholar: https://scholar.google.com.au/citations?hl=en&user=DYx5h5kAAAAJ&view_op=list_works&sortby=pubdate

Organisation: RMIT University

Peter is a Professor at RMIT University, Director of the Centre for Nature Positive Solutions, and an Australian Research Council Future Fellow. He is a marine ecologist whose research focuses on blue carbon, marine carbon cycling, nature-based climate solutions, and translating science into environmental policy, restoration and credible carbon markets.

Role within ARVO: Peter brings a background in blue carbon science, carbon markets and translating research into policy and practice. Within ARVO, he is primarily participating as an observer and adviser, applying lessons from the development of blue carbon to the emerging marine carbon dioxide removal field. He also helps connect the initiative with potential funders, policy networks and broader opportunities for research translation.

Academic profile webpage: https://www.rmit.edu.au/profiles/m/peter-macreadie

Google Scholar: https://scholar.google.com.au/citations?user=9JvxhlwAAAAJ&hl=en

LinkedIn or other social media: https://www.linkedin.com/in/peter-macreadie-82092728/

Organisation: University of Technology Sydney

Katherina is an Associate Professor at the University of Technology Sydney where she studies microalgal physiology in response to environmental change. She investigates photomechanistic effects, biomineralisation and biochemical compositional changes at both the single cell and community level.

Role within ARVO: Member of the scientific team. Her research focuses on phytoplankton physiological and biomolecular responses to ocean alkalinisation during the ARVO study.

Academic profile webpage: https://profiles.uts.edu.au/Katherina.Petrou

Google Scholar: https://scholar.google.com/citations?user=dg_anfwAAAAJ&hl=en&inst=8615794581978883182

Homepage: https://katherinapetrou.com/

Organisation: Southern Cross University

Kai is a biological oceanographer and biogeochemist at Southern Cross University, Australia. In his capacity as Associate Professor he studies human-induced perturbations to marine element cycling, ecosystem functioning and climate feedbacks. This includes various aspects of potential mitigation strategies of marine carbon dioxide removal, such as biological impacts, efficiency and permanence.

Role within ARVO: Kai's focus will be on assessing potential biological impacts of various alkalinity sources on Bass Strait pelagic communities, including alkaline particle dynamics.

Academic profile webpage: https://www.scu.edu.au/about/contacts/directory/112325/

Google Scholar: https://scholar.google.com/citations?user=8xjUgc8AAAAJ&hl=en

Organisation: University of Tasmania

Robert is a Senior Research Fellow with the Australian Antarctic Program Partnership (AAPP) at the Institute for Marine and Antarctic Studies (IMAS) of the University of Tasmania (UTAS). He couples trace metal clean environmental manipulation laboratory studies with ocean-going voyages to address fundamental questions in phytoplankton physiology and ecology and aspects of ocean biogeochemistry related to the cycling of major nutrients and trace metals in the Southern Ocean.

Role within ARVO: Robert will be using large volume (1000 L) mesocosm experiments to investigate the response of the planktonic community to ocean alkalinity enhancement.

Academic profile webpage: https://discover.utas.edu.au/Robert.Strzepek

Google Scholar: https://scholar.google.com.au/citations?hl=en&user=ZlHZFt8AAAAJ