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To improve your experience, we use cookies to store certain browsing information and provide secure navigation, and to collect statistics with a view to improve the site’s features. For a complete list of the cookies we use, download “Ghostery”, a free plug-in for browsers which can detect, and, in some cases, block cookies.

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For more information about the cookies we use, contact INRA’s Data Protection Officer by email at or by post at:

24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

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Schema écaille

What the fish scale said

A fish scale can tell us a great deal about the fish's life story, including where it has been since it hatched. INRA researchers are making a...
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SIA 2018

U3E at the 2018 International Agriculture Fair

The 2018 International Agricultural Show was held in Paris on 24 February to 4 March. The general theme for the 2018 edition was "Agriculture: a...
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U3E's collection of fish tissues granted official Biological Resource Centre label

Following its 2017 call for projects, IBiSA, the body responsible for the national network of biological resource centres (Centres de Ressources...
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U3E publishes its first data paper

It is U3E policy to make its data available; it has now published its first data paper on the Atlantic salmon.
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About the U3E experimentation unit

U3E is an experimentation unit of the Institut national de la recherche agronomique (INRAE, the French national agricultural research institute). It combines major facilities and scientific skills that are unique in Europe. It enables multidisciplinary research on questions concerning all components of river systems.

Some of the unit's facilities (the Oir, Scorff, and Bresle river monitoring sites), are designed for observing, measuring and describing change; others (the Rennes and Rheu sites) are designed for an experimental approach.

U3E also possesses tools for working at different scales on the continuum from individual to population to community to ecosystem, and in situations of increasing complexity from crystallizer to natural environment.

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