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

Dernière mise à jour : Mai 2018

Menu Logo Principal Logo partenaire logo CARRTEL

Centre Alpin de Recherche sur les Réseaux Trophiques des Ecosystèmes Limniques


Centre Alpin sur les Réseaux Trophiques et Ecosystèmes Lacustre



CARRTEL is a research unit (UMR) of the French National Institute of Agronomic Research (INRA) and the University of Savoie Mont Blanc (USMB). Its main objective is to study the functioning of alpine aquatic ecosystems, in particular lacustrine systems, in interaction with the contributions of watersheds.  The general objectives of the CARRTEL are to increase our knowledge on the ecological functioning of large natural alpine lakes in interaction with biogeochemical cycles, to develop bioindicators for the state and evolution of the quality of aquatic environments, and to develop methods of assisting management of fish resources. These works are placed in a context of global change: climate change, modification of anthropic pressures.  The acquisition of knowledge focuses on the ecological characteristics of aquatic organisms and food webs, C-N-P geochemical cycling, the impact of human activities, especially agricultural, biological communities, factors of production, stock dynamics and the functioning of fish populations. 

 The institute was founded in 1997. The Science Campus in Bourget is home to several academic and for-profit research institutions and offers together with the Savoie Mont Blanc University excellent potential for local and international scientific collaborations.

Our center is actively involved in the following research structures:
GLTC: Global Lake Temperature Collaboration, an international working group dedicated to studying the evolution of lake water temperatures. 
GLEON: Global Lake Ecological Observatory Network, an international network dedicated to the observation of lake systems.
PAGES: Past Global Changes Network   
COST Netlake: European network dedicated to the monitoring of lake systems by automated methods.
ARC environnement: Environmental research network in Rhône-Alpes (association of researchers and laboratories around scientific themes related to the environment)
ZABR: Workshop Area of the Rhône Basin

 Observatory system of lakes
The UMR manages and organizes the System of Observation and Research in Environment (SOERE): Observatory of  LAkes (OLA) , which collects, archives and interprets the physical, chemical and biological data collected for several decades , available in OLA Information System.

As a member of the French National Institute for Agricultural Research (INRA), the research unit is jointly funded by the French government and the State of Auvergne-Rhone-Alpes. Approximately 25% of the overall institute's funding has been successfully acquired from competitive third-party grants in the past 5 years.

Jean Guillard is director of CARRTEL. The Unit includes about 40 permanents and about 10 doctoral and post-doctoral students, spread over the two sites of Thonon (74) and Bourget du Lac (73).

Unit Diagram

Organigramme UMR-sept19-version-anglaise