The impact of fine sediment accumulation on benthic macroinvertebrates: implications for river management

Evan Harrison, Richard Norris, Scott Wilkinson

    Research output: A Conference proceeding or a Chapter in BookConference contribution

    Abstract

    Fine sediment accumulation (particle size: <4mm) is a major cause of degradation to instream habitats and ecological condition in many Australian rivers. Benthic macroinvertebrates are commonly used indicators of river ecological condition that can be adversely affected by fine sediment accumulation. Sedimentation can change the suitability of the substrate for some taxa, increase macroinvertebrate drift and affect respiration and feeding activities. Only a few studies have focussed on the responses of individual taxa to sedimentation and many have not disentangled its impact from other associated land-use impacts. This paper describes current understanding of the ways in which fine sediment accumulation affects benthic macroinvertebrates. The paper then outlines the research needed to provide methods for assessing how fine sediment accumulation affects benthic macroinvertebrates at a regional scale. Such research is important for ongoing efforts to maintain and improve river health.
    Original languageEnglish
    Title of host publicationProceedings from the 5th Annual Australian Stream Management Conference, Australian River: Making a difference
    EditorsA.L Wilson, R.L Dehaan, R.J Watts, K.J Page, K.H Bowmer, A Curtis
    Place of PublicationAustralia
    PublisherCharles Sturt University
    Pages139-144
    Number of pages6
    ISBN (Print)9780646474793
    Publication statusPublished - 2007
    Event5th Annual Australian Stream Management Conference - Albury, Australia
    Duration: 21 May 200725 May 2007

    Conference

    Conference5th Annual Australian Stream Management Conference
    CountryAustralia
    CityAlbury
    Period21/05/0725/05/07

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    Harrison, E., Norris, R., & Wilkinson, S. (2007). The impact of fine sediment accumulation on benthic macroinvertebrates: implications for river management. In A. L. Wilson, R. L. Dehaan, R. J. Watts, K. J. Page, K. H. Bowmer, & A. Curtis (Eds.), Proceedings from the 5th Annual Australian Stream Management Conference, Australian River: Making a difference (pp. 139-144). Australia: Charles Sturt University.