Metabarcoding and metagenomic data across aquatic environmental gradients along the coasts of France and Chile
Coastal marine environments, such as lagoons, fjords or estuaries, experience pronounced environmental variability, with fluctuations in salinity, temperature and nutrient levels shaping microbial community structure and function. These gradients result in diverse habitats, which may harbour taxonomic and genetic novelty with biogeochemical and biotechnological relevance. To explore microbial diversity and functional potential across these dynamic ecosystems, we sampled 26 sites along the coasts of France and Chile, including lagoons, estuaries, fjords, harbours, as well as coastal and offshore marine sites. Surface waters were collected from all sites, with deeper layers included at three sites. Monthly sampling at six sites in France enabled the assessment of seasonal dynamics. In total, 116 samples were processed for both metabarcoding and metagenomic sequencing yielding over 53,000 amplicon sequence variants (ASVs) and 1,372 metagenome-assembled genomes (MAGs). This dataset further includes a comprehensive gene catalogue and environmental variables such as salinity, temperature, nutrient concentrations, productivity, as well as oxygen consumption metrics collected across the different ecosystems.
Authors
- Christian Burmeister
- Mara Maeke (ORCID: https://orcid.org/0009-0009-9688-2856)
- Sophie Rabouille (ORCID: https://orcid.org/0000-0002-4890-8902)
- Valentina Valdés (ORCID: https://orcid.org/0000-0003-0487-5851)
- Christiane Hassenrück (ORCID: https://orcid.org/0000-0003-1909-1726)
- Olivier Crispi
- Sara Beier (ORCID: https://orcid.org/0000-0003-3707-4487)
- Barbara Marie (ORCID: https://orcid.org/0000-0003-0005-6365)
- Robin Turon
- Maria Sierks
- Maëlann Gouriou
- Eva Ortega-Retuerta
- Papa Oumar Djibril Diallo
- Martha Stevens
- Alizée Jamont
- Emile Laymand
- Polette Aguilar-Muñoz
- Verónica Molina
- Camila Fernandez
- Camila Aravena
- Mazharul Islam Sajeeb
Institutions
- Université Claude Bernard Lyon 1 (FR)
- HOGENT University of Applied Sciences and Arts (BE)
- Flanders Marine Institute (BE)
- Centre National de la Recherche Scientifique (FR)
- Consejo Superior de Investigaciones Científicas (ES)
- École Pratique des Hautes Études (FR)
- University of Concepción (CL)
- Leibniz Institute for Baltic Sea Research Warnemünde (DE)
- Institut National des Sciences Appliquées de Strasbourg (FR)
- Ghent University (BE)
- Sorbonne Université (FR)
- Universidad de Playa Ancha de Ciencias de la Educación (CL)
- Institut de Systématique, Évolution, Biodiversité (FR)
- Institut Català de Ciències del Clima (ES)
- Laboratoire Microorganismes Génome et Environnement (FR)
- Millennium Institute of Oceanography (CL)
- Institut de Ciències del Mar (ES)
- Laboratoire d'Océanographie Microbienne (FR)
- École Nationale des Travaux Publics de l'État (FR)
- University of Rostock (DE)
- Université de Strasbourg (FR)
Publication Details
- Journal
- Scientific Data
- Published
- 2026-01-13
- DOI
- https://doi.org/10.1038/s41597-026-06572-1
- Primary Topic
- Environmental DNA in Biodiversity Studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Agenția Națională pentru Cercetare și Dezvoltare
- European Commission
- Deutsche Forschungsgemeinschaft
- Centre National de la Recherche Scientifique
- Universidad de Concepción
- Pontificia Universidad Católica de Valparaíso
- Fundación San Ignacio del Huinay
- Université Clermont-Auvergne
- Sorbonne Université
- Agencia Nacional de Investigación y Desarrollo
- Erasmus+
- Institut écologie et environnement
- CHIST-ERA