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

Author

GREENWAY, M., POLSON, C., Griffith University [Brisbane], and Brelot, Elodie

Subjects
rivières urbaines, [SDE.IE]Environmental Sciences/Environmental Engineering, urban rivers, Constructed wetlands, macroinvertebrates, nutrients, sewage effluent, stormwater, water qualit
Abstract

Colloque avec actes et comité de lecture. internationale.; International audience; 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.

Published
2007

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

Author

Greenway, M., Polson, C., Griffith University [Brisbane], and Brelot, Elodie

Subjects
rivières urbaines, [SDE.IE]Environmental Sciences/Environmental Engineering, urban rivers, urban rivers, Constructed wetlands, macroinvertebrates, nutrients, sewage effluent, stormwater, water qualit
Abstract

Colloque avec actes et comité de lecture. internationale.; International audience; 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.

Published
2007

5. Ecological and Hydrological Assessment for a Constructed Stormwater Wetland Restoration

Author

Jenkins, G.A., Greenway, M., Service irevues, irevues, Brelot, Elodie, and Faculty of Engineering and Industrial Sciences (FEIS)

Subjects
treatment, [SDE.IE]Environmental Sciences/Environmental Engineering, vegetation, [SDE.IE] Environmental Sciences/Environmental Engineering, végétation, wetlands, traitement, filtres plantés
Abstract

Colloque avec actes et comité de lecture. Internationale.; International audience

Published
2007

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