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Project Code [2025-NE-1345]
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Project title
Assessing the thermal effects of dams and barriers on river and lake habitats
Primary Funding Agency
Environmental Protection Agency (EPA)
Co-Funding Organisation(s)
n/a
Lead Organisation
University of Dublin, Trinity College (TCD)
Lead Applicant
Patrick Morrissey
Project Abstract
The AquaTherm project will investigate the impacts of artificial barriers—such as large dams and low-head structures—on river thermal regimes and associated ecological responses in Irish river systems. Beyond their physical fragmentation of rivers, these barriers can significantly alter downstream flow and temperature regimes, disrupting habitats and threatening stream biota through changes in migration, reproduction, and overall habitat quality. AquaTherm will employ continuous water level/temperature and quality monitoring—coupled with ecological surveys—to assess variations in thermal and related water quality response upstream and downstream of barriers, compared with free-flowing reference sites. Data gathered will inform the development of numerical models for scenario analyses, including assessments of mitigation measures like environmental flows. These models will guide the integration of findings into the EPA’s Morphological Quality Index (MQI) tool, facilitating a national-scale risk assessment of river segments most vulnerable to thermal alterations. An interdisciplinary team will collaborate closely with key stakeholders (e.g. IFI, EPA, LAWPRO, ESB) to ensure comprehensive data collection and integration of stakeholder needs. The project emphasizes multi-agency cooperation and societal engagement to enhance the effectiveness and relevance of outcomes. Through this approach, AquaTherm aims to deliver guidance for managing thermal regimes in rivers impacted by barriers, contributing to national and international river restoration and management efforts.
Grant Approved
€634,445.00
Research Hub
Protecting and Restoring Our Natural Environment
Initial Projected Completion Date
30/03/2030