WePass: Facilitating Fish Migration and Conservation at the Iron Gates

WePass: Facilitating Fish Migration and Conservation at the Iron Gates
The Danube is a biodiversity hotspot in Europe. We appreciate the paramount importance of the region’s broader interlinked environmental well-being. We see the survival of native Danube River fish species such as sturgeon, shad, barbel, nase, and others as both indicator of the region’s environmental health and as symbol of the Danube region’s common identity.

What is WePass?


WePass is an initiative aiming to facilitate fish migration in the Danube River Basin. A team of multi-disci­pli­nary experts from the ICPDRCDM SMITH, DDNIIMSI, JCWININA and OAK is focussing on the restoration of common and endangered fish species migration routes in the Danube River, its tributaries, and specif­i­cally at the Iron Gate Dams.

Projects partners

Project Partners

Working in Stages

The first project stage "WePass” (11/2018 - 11/2021) constituted the preparatory works for a feasibility study of fish migration solutions for the Iron Gate Dams – the second project stage entitled “WePass2”. The WePass2 website contains an overview of the activities that commenced in 04/2022 and include extensive fish movement monitoring and the preliminary design of fishways at the Iron Gate Dams.

Overview of the tasks and activities in the WePass project stage


3D base models

Iron Gate I
Iron Gate II


Inter­na­tional Commission for the Protection of the Danube River (ICPDR)

Hélène Masliah-Gilkarov (Commu­ni­ca­tions)

Edith Hödl (Project Management)

VIC - Room D0415
Wagramer Strasse 5
1220 Vienna, Austria

CDM Smith

Marq Redeker

Kanzlerstraße 2
40472 Düsseldorf

Europe Flag
Here you will find an introduction to WePass!
Click here
Would you like to discover more about facil­i­tat­ing fish migration for sturgeons? Then have a look at this literature study.
download here
Here you can find the results of fish movement investigations in 2019 and 2021.
Have a look here
Here you can read all about the results of WePass.
Click here

This project has received funding from the European Union

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