Skip to Main Content
logo
WePass Logo vertikal 2WePass Logo vertikal

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.

Marq Redeker

by Marq Redeker

Practices

Water ResourcesWaste WaterHydraulic Engineering
Person in a dark suit with a blue tie standing against a brick wall backdrop.
Marq Redeker
Senior Business Development Manager

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 ICPDR, CDM SMITH, DDNI, IMSI, JCWI, NINA  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.

This project has received funding from the European Union.

We Pass - Facilitating Fish Migration and Conservation at the Iron Gates

Learn why sturgeons are at risk in the Danube River Basin, and what WePass is doing to ensure the survival of the last of their species.

White download arrow on a blue background.

Facil­i­tat­ing Fish Migration

Would you like to discover more about facil­i­tat­ing fish migration for sturgeons? Then have a look at this literature study.

White download arrow on a blue background.

Fish Behaviour

Here you can find the results of fish movement investigations in 2019 and 2021.

White download arrow on a blue background.

Wepass Final Report

Here  you can read all about the results of WePass.

WePass Explained!

Here you will find an introduction to WePass.
Download

Projects Partners

A row of organizational logos, including ICPDR, CDM Smith, INCDDD Tulcea, Jaroslav Černi Water Institute, NINA, and OAK.

 

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

Task 1

Task 2

Task 3

Task 4

Task 5

Project Management

Analysis of Current Situation and Data Gathering

Monitoring Fish Behaviour at Iron Gate I & II

Communication

Data Quality Assurance and Quality Checks, 3D basis model  

ICPDR

Jaroslav Černi Institute for the Development of Water Resources

DDNI & NINA

ICPDR

CDM Smith & OAK Consultants

  • Overall project supervision and coordination    

  • Hydrological data

  • Hydropower plants operational data

  • Legislation Analysis

  • Dams and infrastructure details

  • Geotechnical data and maps

  • Hydraulic data

  • Detailed topographic map

  • ADCP flow measurements

  • Sturgeon passage facilities literature study[RM1] 

  • Design and installation of acoustic receivers network

  • Fishing,tagging and release of fish  

  • Analysis of fish movements

  • Inform audience on the objectives and results

  • Ensure transparency

  • Maintain contact

  • Raise awareness

  • Bring together conflicting stakeholders

  • Produce clear and public-friendly content

  • Reiterate Danube Regional importance

  • Identify & specify technical data requirements for Task 2

  • QA/QC on receipt of data

  • Analyse/process collected data

  • Prepare and execute an experts workshop

  • Commence building 3D model(s) with Task 2 data

  • Identify other potential data sources

3D based Models

Our 3D‑based models visualise the Iron Gate I and Iron Gate II. 

Contact Person

Person in a dark suit with a blue tie standing against a brick wall backdrop.

Marq Redeker

Senior Business Development Manager

Expert in water management and hydraulic engineering, with experience in flood protection, river engineering and industrial water management.

Further Contacts

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

Hélène Masliah-Gilkarov (Commu­ni­ca­tions)
helene.masliah-gilkarov@icpdr.org

Edith Hödl (Project Management)
edith.hoedl@icpdr.org

ICPDR
VIC - Room D0415
Wagramer Strasse 5
1220 Vienna, Austria

Keep exploring

Discover our insights on key topics and current developments.

Two workers in safety gear collecting water samples in a grassy field.
Insight

Current Questions About PFAS: Interview with Expert Dr Ian Ross

Dr Ian Ross, PFAS Practice Leader at CDM Smith, answers important questions about per-and polyfluoroalkyl substances.
A person wearing rubber gloves takes a water sample from a natural body of water. PFAS, PFC.
Insight

PFAS – in Water

How can PFAS be treated? CDM Smith has vast experience worldwide with the treatment of PFAS contaminated ground, surface and potable water. For 70 years now we have been providing our clients with innovative solutions in the filed of water treatment.
Laboratory glassware including a conical flask and graduated cylinders on a reflective surface.
Insight

Environmental Pollutants Contaminate Ground and Groundwater: What to Do if PFAS Are Suspected

The group of PFAS, including over 4,000 individual substances, is globally widespread nowadays. Our contaminant expert Jörn Müller explains in this interview what organisations can do in case of suspected PFAS existence.