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New VSC · October 2024 Welcome to Justine Gamet, VSC in molecular biology at Ifremer Tahiti within MaHeWa |
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A molecular biology technician, Justine has been serving as a VSC at Ifremer Tahiti since October 2024. She contributes to projects focused on the physiology, toxicology, and immunology of marine organisms. She performs molecular biology procedures (DNA/RNA extractions and gene detection) as well as biochemical analyses (enzymatic and immunological tests) to study how organisms respond to their environment, toxins, or pathogens. |
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New VSC · 2025 Welcome to Ida, VSC supporting anthropological research within MaHeWa |
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Ida holds an engineering background in international agri-development and is currently serving as a VSC within the MaHeWa and CLIPSSA projects, where she provides support to anthropological research under the supervision of Catherine Sabinot. Rooted in New Caledonia, with family origins on the island of Maré, her trajectory unfolds in a context where land and sea form a continuous fabric of relationships. Agricultural and fishing practices shape both social balances and economic dynamics, and sustain knowledge passed down through generations. |
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Deployment · November–December 2025 Two Argo floats deployed around New Caledonia during an ongoing marine heatwave |
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As part of the MaHeWa project, two Argo floats were deployed around New Caledonia in late November 2025, in the context of an ongoing marine heatwave. A first float was deployed on 30 November 2025 from the research vessel Antea during the KASEAOPE3 mission, south of New Caledonia. A second float was deployed from the Amborella, the Government of New Caledonia’s vessel, north of the archipelago. These deployments took place during a marine heatwave currently classified as moderate to strong, with sea surface temperature anomalies reaching up to +3 °C. |
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Experiment · November 2025 First marine heatwave simulation applied to the orbicular batfish in French Polynesia |
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Vairao (Tahiti), November 2025 — The MaHeWa project has just reached a decisive milestone with the completion of the first marine heatwave simulation applied to the orbicular batfish Platax orbicularis, or “Paraha peue,” an emblematic species of Polynesian lagoons and of aquaculture interest for the fenua. This experiment was designed and implemented during the mission of Benjamin Geffroy (Ifremer – UMR MARBEC Montpellier), who came to support the Ifremer Vairao team in preparing the system and launching the trials. |
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Field mission · 2025 ILM field mission in the Gambier Islands: studying toxic microalgae within MaHeWa |
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As part of the MaHeWa project, a team from the Louis Malardé Institute (ILM) is currently conducting fieldwork in the Gambier Islands, French Polynesia. This mission takes place within Work Package 2 – Task 2.2, dedicated to studying the impacts of Harmful Algal Blooms (HABs), and more specifically ciguatera, a marine food poisoning caused by microalgae of the genus Gambierdiscus. |
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Participatory workshop · October 2025 Co-construction workshop in Vairao: building collective responses to marine heatwaves in French Polynesia |
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On 21 October 2025, we organised a co-construction workshop at Ifremer in Vairao focused on possible responses to marine heatwaves. This event was part of the ongoing work carried out under the MaHeWa project and brought together around thirty participants, including municipal representatives, environmental associations, staff from the Directorate of Marine Resources, members of the Interministerial Delegation for Climate and Sustainable Development, and several researchers involved in the project. The goal was to engage in concrete discussions about the impacts of ocean heatwaves and to identify collective actions to reduce their effects on ecosystems and human activities. As a reminder, a first workshop of this kind was previously held in Nouméa, New Caledonia. |
