Abstract：
:The development of a broader, more holistic approach to aquatic ecosystem management has been called for in recent years. Physical and chemical objectives alone are no longer considered sufficient for the protection of aquatic ecosystems and should be supplemented with biological objectives. The ubiquitous and sedentary nature of macroinvertebrates, combined with their measurable response to environmental conditions, favour their use as important indicators in environmental policies. To establish biological objectives, there is a need for a regional framework to limit the variability between ecosystems. Past studies have demonstrated that an a posteriori regionalisation approach may be more useful than an a priori approach in explaining single component (e.g. macroinvertebrates) patterns across ecosystems. This is particularly important as aquatic resource management agencies often focus on one or two components of the ecosystem to assess environmental health. This study uses an a posteriori method to delineate and describe biological regions based on edge and riffle macroinvertebrate data. The regionalisation will provide a framework for setting biological objectives, based on the range of reference conditions measured within each separate region. The objectives will include regional checklists for taxa and biotic indices. Predictive modelling in the style of RIVPACS or AUSRIVAS will also be used within each region to develop objectives, incorporating local, regional and systematic features as predictor variables.
journal_name
Environ Monit Assessjournal_title
Environmental monitoring and assessmentauthors
Wells F,Metzeling L,Newall Pdoi
10.1023/a:1014235211968subject
Has Abstractpub_date
2002-03-01 00:00:00pages
271-94issue
3eissn
0167-6369issn
1573-2959journal_volume
74pub_type
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journal_title：Environmental monitoring and assessment
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journal_title：Environmental monitoring and assessment
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journal_title：Environmental monitoring and assessment
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journal_title：Environmental monitoring and assessment
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更新日期：2008-09-01 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
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journal_title：Environmental monitoring and assessment
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