Assessing the reponse of estuarine intertidal assemblages to urbanised catchment discharge

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Journal Article
Environmental Monitoring and Assessment, 2005, 107 (1-3), pp. 375 - 398
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Measurement of intertidal rock assemblages was investigated as a potential biological indicator to provide a quantitative estimate of the impact of urbanised catchment discharge on the estuaries of Sydney, Australia, from 1995 to 1999. Based on the presence and characteristics of adjacent human activities, sampling locations were categorised as: Bush; Urban; Urban with Sewer Overflows; and Industry with Sewer Overflows. In Sydney Harbour, variation in assemblage structure was measured between most impact categories, however differences between impact categories were not consistent for each year. Nevertheless, in years of above average rainfall (19981999), reference assemblages adjacent to national parks and distant from urbanisation were different to all other putatively impacted assemblages.
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