A database of eels and their freshwater habitats in southwestern Europe

The European eel stock (Anguilla anguilla) is outside safe biological limits. A range-wide stock assessment requires the creation and standardisation of databases that include information on eels and their habitats in different countries throughout their distribution range. The SUDOANG 1.0.4 database compiles standardised data on river courses in France and the Iberian Peninsula (Spain and Portugal). Using GIS tools, information on water surface and on other potential aquatic habitats surrounding each river segment has been collected. This common river network provides tools to quickly accumulate information along the river or along the natural path of migration from/to the sea. The database also compiles information on the surface of other habitats, human pressures (including 106400 obstacles), and provides eel abundance and biometric estimations derived from the Eel Density Analysis (EDA) model at the river reach scale for the reference year 2015. The river network supports ecological assessment of the eel habitats, and should also be useful for studies on other migratory species.

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Publication Details

Journal
Scientific Data
Published
2026-05-09
DOI
https://doi.org/10.1038/s41597-026-07213-3
Primary Topic
Reproductive biology and impacts on aquatic species
Type
article
Field-Weighted Citation Impact
0.00
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article

A database of eels and their freshwater habitats in southwestern Europe

Mathilde Labedan, Lluís Zamora, Mercedes Herrera, Hervé Pella et al.
Scientific Data
Reproductive biology and impacts on aquatic species
article

A database of eels and their freshwater habitats in southwestern Europe

Mathilde Labedan, Lluís Zamora, Mercedes Herrera, Hervé Pella, Elsa Amilhat, Pierre Sagnes, Agnès Bardonnet, Laurent Beaulaton, Hilaire Drouineau, Ramón De Miguel Rubio, Maria Mateo, Isabel Domingos, Estibaliz Díaz, Carlos Antunes, Cédric Briand, Maria Korta, Carlos Fernández-Delgado
article en

Abstract

The European eel stock (Anguilla anguilla) is outside safe biological limits. A range-wide stock assessment requires the creation and standardisation of databases that include information on eels and their habitats in different countries throughout their distribution range. The SUDOANG 1.0.4 database compiles standardised data on river courses in France and the Iberian Peninsula (Spain and Portugal). Using GIS tools, information on water surface and on other potential aquatic habitats surrounding each river segment has been collected. This common river network provides tools to quickly accumulate information along the river or along the natural path of migration from/to the sea. The database also compiles information on the surface of other habitats, human pressures (including 106400 obstacles), and provides eel abundance and biometric estimations derived from the Eel Density Analysis (EDA) model at the river reach scale for the reference year 2015. The river network supports ecological assessment of the eel habitats, and should also be useful for studies on other migratory species.

Scientific Data
Centre National de la Recherche Scientifique (FR), University of Lisbon (PT), Université de Perpignan (FR), Universidade do Porto (PT), Universitat de Girona (ES), Society for Conservation Biology (US), Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (FR), AZTI (ES), Laboratoire Écologie Fonctionnelle et Environnement (FR), Centre de Formation et de Recherche sur les Environnements Méditerranéens (FR), Institut de Mécanique des Fluides de Toulouse (FR), Nutrition Metabolism Aquaculture (FR), Aquatic Systems (United States) (US), Institut de Génétique, Environnement et Protection des Plantes (FR), Ecology and Ecosystem Health (FR), Eau de Paris (France) (FR), Forum Réfugiés - Cosi (FR), University of Córdoba (ES), Cordoba University (US)
Life below water
Openalex Percentile: Top 8%
Reproductive biology and impacts on aquatic species
DOIOpen Access PDFOpenAlex
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