Social and ecological effects of Fish removal in Mountain Ecosystems


Website project:

Social media: |

Project coordinator: Dirk S. SCHMELLER -

Functional ecology and environment (ECOLAB), National School of Agronomy of Toulouse (INP ENSAT) - France


Ecology, University of Innsbruck

Departement of Earth and Environmental Sciences, University of Pavia Italy
Natural Sciences and Agricultural Sciences, University Ovidius Constanţa Romania
Ecological Research and Forestry Applications, University of Barcelona Spain
Continental Ecology, Superior Council of Scientific Investigations (CSIC) Spain
Plant Sciences, University of Bern Switzerland


Threats to mountain aquatic ecosystems are multiple. Yet, besides climate change, fish stocking of naturally fishless lakes has been identified as particularly detrimental to water quality and biodiversity. Due to the magnitude of the ecological impact and to the global extent of fish introductions into mountain lakes, introduced fish are perhaps the most important threat to mountain lake biodiversity, ecosystem functioning, and water quality. This threat is particularly important as fish introductions co-occur with a number of other anthropogenic activities such as human population growth, changing economic activities, land-use change, urbanisation, pollution, loss and degradation of aquatic habitats, overexploitation, flow modifications and alien species invasions. Together and in interaction with climate change, these factors accelerate and exacerbate the environmental and ecological degradation of mountain aquatic ecosystems and the loss of unique species and life forms. Yet, despite strong concerns over the long-term health and functioning of aquatic ecosystems, experimental and restoration studies that link fish stocking to pollution, aquatic disease ecology, and ecosystem health, are still scarce.

Reference documents

For more details on the work plan and expected impact of the project and other projects funded in response to the BiodivRestore joint call consult:

Name Link

Download pdf

BiodivRestore funded projects booklet Download pdf

Keywords: Fish stocking, pollution, eutrophication, climate change, traditions, water quality, microorganismic communities, trophic networks, interactome, food source

Document Actions

published on 2021/10/15 10:29:00 GMT+1 last modified 2022-08-31T11:17:23+01:00