Aragon. Restauration of riparian zone. Stage I and II

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Aragon. Restauration of riparian zone. Stage I and II

Factsheet: Aragon. Restauration of riparian zone. Stage I and II

Country ES
River Name Aragon
Site Name Aragon. Restauration of riparian zone. Stage I and II
River Characterisation
    River typology
    Location (Lat Lon) 42.3352154167569, -1.6979455947876
    Altitude mid-altitude: 200 - 800 m
    Catchment area large: > 1000 - 10000 km2
    National code/
    River type name
    15. Ejes mediterráneo-continentales poco mineralizados

    Biological quality elements
    Ecosystem Services
    EU Directives
    Project size 64 ha
    Approximate costs 100 000 - 1 000 000 Euros
    Status Realised
    Period of realization 13-08-2005 to 31-12-2006
    Evaluation Ecological change
    Implemented by Gestión Ambiental, Viveros y Repoblaciones de Navarra.

    Key features of the case study

    The Soto of El Estajado is downstream Caparroso town. The work area was located on the left Aragon River bank.
    The main objective of this project is to increase the quality of habitat in Community Interest Areas, with special attention to European mink (Mustela lutreola).
    There are other secondary objectives: Creating new habitats for otter (Lutra lutra) and turtle (Emys orbicularis); quality improvement of habitats 92A0 (willow and black poplar plantation) and 92D0 (tamarisk plantation); spatial planning for cattle; restore the natural riparian vegetation in Aragon River.

    Site description

    The Soto of El Estajado has an area of 64 hectares. The main surface was occupied by old black poplar plantations and little bad conserved areas of Community Interest Areas 92A0 and 92D0. The area was used for inappropriate cattle.
    The actuation area limits with an important community of European mink (Mustela lutreola). The actuations are aimed at preserving this protected species.

    Measures selection

    With the construction of 2 new irregular ponds (to increase the riverbank length) of 0,3 and 0,15 ha and the plantation of 3 ha of riparian vegetation in their perimeter (habitats 92A0 (willow and black poplar plantation) and 92D0 (tamarisk plantation)), it has been created a new surface of 3,45 ha of Quality Habitat for the European mink (Mustela lutreola). There are new little channels with a slow flow and with shrubs in riverbanks.

    Artificial pond created in Estajado area

    New riparian forests and spatial planning for cattle increased the grazing lands, compatibles with conservation, up to 9,15 ha Interest Habitats (92A0 and 92D0).

    Success criteria

    Ecological response


    Riverside vegetation has been restored with species included in habitats 92A0 and 92D0: Salix atrocinerea, Salix alba, Salix eleagnos sbsp. angustifolia, Salix fragilis, Populus alba, Fraxinus angustifolia, Tamarix gallica.


    The quality of habitat for the European mink (Mustela lutreola) was improved.


    The quality of habitat for otter (Lutra lutra) and European turtle (Emys orbicularis) was improved too at the same time as the European mink.

    Hydromorphological response

    Monitoring before and after implementation of the project

    Socio-economic aspects

    Project costs

    The total costs of the entire project 152.948,34€ (Phase I 82.260,25€ and Phase II 70.688,09€)

    Contact person within the organization

    Fernando Mendoza, e-mail

    Gestión Ambiental Viveros y Repoblaciones de Navarra, S.A.
    Padre Adoain, 219 bajo
    31015 Pamplona - Navarra
    Fax: (00 34) 948 38 23 91

    Extra background information

    The project was presented by the “Environmental Management for Reintroduction and Repopulation in Navarre” in cooperation with the Government of Navarre’s Environment, Land and Housing Department.
    Company’s web page:
    GERVE-LIFE project:
    INTERREG GIRE project:
    Government of Navarra:


    Related Measures

    Related Pressures