Text / Macroinvertebrate Response to Geomorphologic Change - POSTER

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Title: Macroinvertebrate Response to Geomorphologic Change - POSTER
Creator: Jessica Roark, Chuck Podolak and Peter Wilcock
Date Created and/or Issued: 2009
Contributing Institution: UC Riverside, Library, Water Resources Collections and Archives
Collection: Clearinghouse for Dam Removal Information (CDRI)
Rights Information: Copyrighted
Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user.
Description: Scope/Content: Abstract: Macroinvertebrates are commonly used to assess ecosystem health. Indices exist that evaluate habitat based on macroinvertebrate species and their occurrence in relation to water quality conditions. This study attempts to quantify a relationship between macroinvertebrate species composition (diversity and density) and geomorphologic changes (changes in habitat). The appearance of Diversity and Density, important measurement tools, of organisms indicate that an ecosystem is in a healthy, self-sustainable condition. It was found that geomorphologic change had a significant effect on macroinvertebrate diversity but not density. The study sets up the stage for future work that could create a macroinvertebrate index to evaluate ecosystem health based on changes in habitat.
Scope/Content: Dam type: concrete
Scope/Content: Height: 30 feet. Length: 4690 feet.
Scope/Content: Date constructed: 1913. Date removed: 2007.
Type: text
Identifier: ark:/86086/n2np243h
1224
Language: eng
Subject: Ecology and river restoration
Pre- and post-project monitoring
Dams
Dam retirement
Place: Sandy River, OR
Marmot Dam

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