Protecting aquatic ecosystem health: are water quality objective realistic? Case studies from Queensland, Australia

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Title Protecting aquatic ecosystem health: are water quality objective realistic? Case studies from Queensland, Australia
Author Greenway, Margaret; Polson, Carolyn
Publication Title NOVATECH 2007: Sustainable techniques and strategies in urban water management
Editor Bernard Chocat and Michel Desbordes
Year Published 2007
Place of publication Lyon, France
Publisher GRAIE
Abstract Many regulatory authorities set water quality objectives or thresholds based on nutrient concentrations to safeguard aquatic ecosystem health. But do these criteria adequately assess the biological and ecological status? Our research has been focussing on the performance of constructed wetlands for water quality improvement and ecosystem health. In this paper we present data on macroinvertebrate species richness from two wastewater treatment wetlands and two stormwater treatment wetlands. Despite nutrient concentrations exceeding water quality objectives all four wetlands supported a diverse assemblage of macroinvertebrates, including sensitive taxa. From our study we concluded that water quality objectives may be too stringent and that aquatic plants are more important for macroinvertebrate richness. Thus, constructed wetlands are effective for both water quality improvement and aquatic biodiversity.
Peer Reviewed Yes
Published Yes
Publisher URI http://www.graie.org/novatech/a_index.htm
Copyright Statement Copyright remains with the authors 2007. The attached file is posted here with permission of the copyright owners for your personal use only. No further distribution permittedFor information about this conference please refer to the publisher's website or contact the authors.
ISBN 2950933793
Conference name NOVATECH 2007
Location Lyon, France
Date From 2007-06-25
Date To 2007-06-28
URI http://hdl.handle.net/10072/17686
Date Accessioned 2008-03-13
Date Available 2008-12-04T01:38:28Z
Language en_AU
Research Centre Atmospheric Environment Research Centre
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Applied Hydrology (Drainage, Flooding, Irrigation, Quality, etc.)
Publication Type Conference Publications (Full Written Paper - Refereed)
Publication Type Code e1

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