Development of a method to assess ecological impact due to hydrological regime alteration of Scottish rivers

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    7 Citations (Scopus)

    Abstract

    The Water Framework Directive (WFD) of the European Union is the principal driver behind the development of protocols for the assessment of anthropogenic impacts on the hydrology of Scotland's rivers, lakes and transitional waters. A new approach for rivers, known as the Dundee Hydrological Regime Assessment Method (DHRAM) has been developed. The underlying rationale is to assess the risk of significant impact on biota arising from changes in hydrological regime, as distinct from chemical or hydromorphological influences. This approach is based on the Indicators of Hydrologic Alteration (IHA) methodology of Richter et al. (1996), in which the degree of alteration of a range of hydrological variables that are significant to biota are estimated. The DHRAM method classifies the degree of alteration to hydrological regime using a five-point scale, which correlates with the risk of ecological damage. These categories are compatible with those of the WFD. The acquisition of appropriate biological data for calibration and validation of DHRAM has, however, proved problematic. This paper proposes the future development of a calibration scheme which compares the biota of neighbouring water bodies (pairs whose physical attributes are as similar as possible in all relevant respects, except in the degree of disturbance to their hydrological regimes).
    Original languageEnglish
    Title of host publicationThe structure, function and management implications of fluvial sedimentary systems
    EditorsFiona J. Dyer, Martin C. Thoms, Jon M. Olley
    Place of PublicationWallingford, Oxon.
    PublisherInternational Association of Hydrological Sciences (IAHS)
    Pages45-51
    Number of pages7
    Volume276
    ISBN (Print)1901502961
    Publication statusPublished - 2002
    EventInternational Symposium on the Structure, Function and Management Implications of Fluvial Sedimentary Systems - Alice Springs, Australia
    Duration: 2 Sep 20026 Sep 2002

    Publication series

    NameIAHS Series of Proceedings and Reports
    PublisherInternational Association of Hydrological Sciences
    Volume276

    Conference

    ConferenceInternational Symposium on the Structure, Function and Management Implications of Fluvial Sedimentary Systems
    CountryAustralia
    CityAlice Springs
    Period2/09/026/09/02

    Keywords

    • DHRAM (Dundee Hydrological Regime Assessment Method)
    • Ecological quality
    • European union
    • Hydrological regime alteration and assessment
    • Scotland
    • Water framework directive

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