About Tosca Ballerini

Marine scientist. Science writer. Founder, Thalassa Consulting.

Tosca Ballerini working aboard a sailboat
Expédition MED 2017. Fieldwork in the Mediterranean.

Tosca Ballerini

I have spent twenty years working in ocean science: in the field, in research institutions, and as a journalist. Thalassa Consulting is the practice that grew from that experience: the ocean science expertise a project needs, without a research institute or NGO having to build that expertise in-house.

I am a marine biologist and journalist. I hold a doctorate in Ecology and Biology of Polar Habitats from the University of Siena, and a professional degree in print and online journalism from ESJ-PRO Montpellier. These two skills are the foundation of my work: the science, and the ability to communicate it.

The Science

My scientific career began with a Master's in Natural Sciences from the University of Florence, focused on macrofauna in mangrove ecosystems along the Mozambican coastline. My doctoral research then took me to Antarctica, where I developed population models for an Adelie penguin colony.

After completing my doctorate in 2007, I continued as an ecosystem modeller at American and French research institutions, developing ecosystem models for the Western Antarctic Peninsula and the Mediterranean Sea. For a research institute, that means a scientific partner who has worked inside institutions like theirs and understands how they operate: peer review, funding cycles, the pace of research.

From 2017, I have led and coordinated seven citizen science projects on plastic pollution in the Mediterranean (for four of them, I wrote the grant proposals that were then funded), designing the scientific protocols, coordinating field surveys with volunteers, and writing peer-reviewed publications based on the data collected. For an NGO, that means a citizen science project designed for both goals: real community engagement and solid data for peer-reviewed publication.

My peer-reviewed publications and scientific reports are listed on the Publications page.

The Journalism

The journalism degree was a deliberate choice: a professional qualification to complement my scientific training, so that a project's research can be put into a form a wider audience can follow.

In 2014, I completed my training at ESJ-PRO Montpellier, specialising in print and online journalism. Since then, I have covered international and European environmental policy and negotiations for Italian media (the ocean economy, shipping emissions, the EU packaging and packaging waste regulation (PPWR), the global plastics treaty). For a project that needs to reach beyond the field, that means research written to newsroom standards, accurate and easy for a non-specialist to follow.

Languages

  • English: advanced
  • Italian: native
  • French: advanced
  • Spanish: intermediate

Field Experience

Antarctica: Doctoral fieldwork on Adelie penguin population dynamics. Remote field station research on the Antarctic coast.

Mozambique: Master's research on macrofauna ecology in mangrove ecosystems along the Mozambican coastline.

Mediterranean Sea: Almost a decade of plastic pollution citizen science — protocol design, field coordination, and training more than 100 citizen scientists across open sea, river, and shoreline: the Ligurian, Tyrrhenian, Ionian, and Adriatic seas, the Durance river, and the Tuscan coast.

At sea: Ten years sailing the Mediterranean, including an Atlantic crossing from the Canaries to the Caribbean with an all-female crew, and 105 days at sea on citizen science surveys. Certified as a merchant-navy deckhand on bridge watch and, in 2026, as a sailing instructor.

Work Experience

2016 – present

Founder & Consultant

Thalassa Consulting — Marseille, France

2015 – present

Freelance Environmental Journalist

Italian media

2021 – 2022

Research Fellow

Stazione Zoologica Anton Dohrn — Naples, Italy

Project: MPA Engage — Interreg MED

2014 – 2015

Research Scientist & Program Specialist

Mediterranean Institute of Oceanography (MIO) — Toulon, France

Project: CoCoNET (Towards coast to coast networks of Marine Protected Areas, from the shore to the high and deep sea, coupled with sea-based wind energy potential) — EU 7th Framework Programme

2012 – 2013

Marine Ecosystem Modeler

Mediterranean Institute of Oceanography (MIO) — Marseille, France

Project: EMIBIOS (End-to-end Modelling and Indicators for BIOdiversity Scenarios) — Fondation pour la Recherche sur la Biodiversité

Project: PERSEUS (Policy-oriented marine Environmental Research in the Southern EUropean Seas) — EU 7th Framework Programme

2008 – 2011

Marine Ecosystem Modeler

Center for Coastal Physical Oceanography, Old Dominion University — Norfolk, Virginia, USA

Project: US GLOBEC Pan-Regional Synthesis project — US National Science Foundation

Education

2014

Professional Degree in Print & Online Journalism

ESJ-PRO — Montpellier, France

Final Exam: Investigation into the Montpellier TGV Station

2007

PhD in Ecology and Biology of Polar Habitats

University of Siena, Italy

Thesis: "From individual information to population models: the case of a long-lived Antarctic species, the Adélie penguin Pygoscelis adeliae."

2001

Master's Degree in Natural Sciences

University of Florence, Italy

Thesis: "Researches on East African Mangroves: environmental and biotic gradients and their influence on macro fauna zonation."