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The Institute of Aquatic Ecology (Institut d’Ecologia Aquàtica, IEA) of the University of Girona is a research center founded in 1987 and devoted to all aquatic ecosystems, including marine and inland water habitats (rivers, lakes and reservoirs, and wetlands). It is currently organised in three Sections (Limnology, Microbiology and Marine biology), corresponding to three research groups. It presently consists of over 30 researchers on a wide array of water ecology topics (including studies on bacteria, algae, macroinvertebrates and fish), what facilitates multidisplinary research.

Most of the IEA belongs to EcoAqua (research group recognized and funded by the Generalitat of Catalonia: 2014 SGR 484 and 2017 SGR 548). Members of the Marine Biology section belong to the also SGR-funded group MedRecover (SGR 1521) and coordinate the web page Health and Fish.

Please use your browser’s search engine to find what you are looking for. If you wish to stay connected to our projects and activitites, please subscribe to our newsletter “EcoAqua News” (=<4 per year).

For media enquiries, please send an email to dir.iea@udg.edu.



New article: Invasive Species in Streams and Rivers

Key findings: ● Aquatic invasive species are a primary threat to streams and rivers across the globe, impacting biodiversity, disrupting key ecological functions, and compromising ecosystem services. ● Invasive species are those that are transported out of their native range, introduced into a novel location, establish self-sustaining populations by surviving and reproducing, spread to new locations, and have negative ecological and/or economic impacts in the recipient ecosystem.


The Final Congress of the PlasticØPyr Project was a point of debate and discussion on strategies for the reduction of plastic waste in mountain ecosystems.

On April 21, 2022, the Final Congress of the Plastic0Pyr Project was held in Setcases, Girona, with the participation of representatives of the local and regional administration, companies, sports entities, universities and research centers. The results of the project were presented at the congress, confirming the presence and effects of plastic waste both in mountain ecosystems and in organisms, and strategies were discussed to minimize its presence. On the 22nd, the Plastic0Pyr Switch citizen science activity was carried out in which members of the educational community, representatives of the administration and members of sports entities participated.


Energy limitation or sensitive predators? Trophic and non-trophic impacts of wastewater pollution on stream food webs

Impacts of environmental stressors on food webs are often difficult to predict because trophic levels can respond in divergent ways, and biotic interactions may dampen or amplify responses. Here we studied food-web-level impacts of urban wastewater pollution, a widespread source of degradation that can alter stream food webs via top-down and bottom-up processes.


3-8/07 – 2nd Meeting of the Iberian Ecological Society (SIBECOL) – XXI conference of the Iberian Association of Limnology (AIL) – XXI National Congress of the Portuguese Ecological Society – SPECO)


The 2nd Meeting of the Iberian Ecological Society (SIBECOL), the XXI conference of the Iberian Association of Limnology (AIL), and the 21st National Congress of the Portuguese Ecological Society – SPECO), hosted by CESAM - Center for Environmental and Marine stusies at University of Aveiro, Portugal.

07/07 – Thesis dissertation: “Conservation ecology of headwater streams: a case study from the Pyrenees” by Alejandro López de Sancha


On Thursday, July 7 at 3:30 p.m., will take place the reading of the doctoral thesis: "Conservation ecology of headwater streams: a case study from the Pyrenees", elaborated by Alejandro López de Sancha, and directed by Dra. Helena Guasch (CEAB-CSIC) and Dra. Anna Vila (GRECO-UdG).

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