Linking Species Changes to Watershed Modification: A Long-Term Analysis Using Fish Communities
Publication: World Environmental and Water Resource Congress 2006: Examining the Confluence of Environmental and Water Concerns
Abstract
Recent work in river restoration and water resources management requires an expansion in scope to address the effects of watershed impairment. However, comprehensive investigations at watershed scales are made difficult by the limitations of existing data sets, which are often collected for analysis at much smaller scales. This is especially true of ecological and biological data that may be collected infrequently and for reach oriented studies. This research developed a protocol for assessing the changes in aquatic communities at the watershed scale. The first step in this protocol assembles biological assessment and monitoring data. The biological data is then used with an autecology matrix that provides opportunities for analysis of habitat, water quality, and other environmental factors that are species based. We have used this protocol to examine biological assessment data collected over two decades in the Kishwaukee River, Illinois. The protocol has provided a method to identify the effects of watershed modification as well as likely causes of existing conditions. This technique provides an improved understanding of historical influences on fish community structure by using a process-based assessment of historical data that integrates the state and condition of a biological community with likely environmental controls.
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Copyright
© 2006 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
ASCE Technical Topics:
- Biological processes
- Data analysis
- Data collection
- Ecological restoration
- Ecosystems
- Engineering fundamentals
- Environmental engineering
- Fish and fishery management
- Methodology (by type)
- Research methods (by type)
- River engineering
- River systems
- Rivers and streams
- Waste management
- Water and water resources
- Water management
- Water policy
- Water resources
- Watersheds
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