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Silica sand mining by Kemerton Silica Sand Pty Ltd. in the Kemerton wetlands of Australia’s south-west, is followed by rehabilitation of mined lands into conservation areas after ore extraction is complete. Assessment of successful rehabilitation to a natural wetland ecological community involves comparing biotic communities of rehabilitated wetlands with local natural reference wetland communities. Aquatic macroinvertebrates are an industry standard for such ecological assessment. Studies are examining what aquatic macroinvertebrate communities are present in seasonal Kemerton wetlands and what environmental parameters are the major determinants of these communities. This understanding will also lead to guidelines as to what entails a rehabilitated wetland, and how it may best be achieved.
Dr Clint McCullough
Associate Professor Mark Lund
Kemerton Silica Sand Pty Ltd., Mr Mark Gell