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CONFERENCE SCHEDULE UPDATES & CHANGES: As a result of the prolonged government shutdown, we experienced a number of cancellations and changes to the schedule. Cancellations and changes are listed here (as of January 26, 2019). 
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Tuesday, January 29 • 6:00pm - 9:00pm
(P36) Evaluating the Fish Communities of Riffles/runs with Three Different Substrate Types in Preparation for Changes Post Lowhead Dam Removal

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AUTHORS. Drew Holloway, Muncie Sanitary District Bureau of Water Quality; Kaleb Eden, Ball State University

ABSTRACT. The importance of a natural flow regime has been well documented throughout the years. The traditional riffle, run, pool sequence allows a stream to optimize its community structure and allow habitat specific species an opportunity to flourish. Lowhead dams alter this process and overtime can lead to expansive impoundments reducing the amount of riffle and run habitats available. The removal of neglected and unnecessary dams will allow a stream to return to its natural state. The West Fork of White River in Muncie, In will be having two of its lowhead dams removed in the coming year allowing these habitats to return. In preparation for these removals and the anticipated substrate changes, a 10x10m sandy run, boulder/cobble riffle and bedrock riffle were sampled using electrofishing methods. A total of 19 species were sampled for a total of 422 individuals. Five of the species were observed in all three substrate types including four Cyprinidae species. When looking at each substrate type individually we see subtle differences, like the presence of various Percidae species that were absent in the sandy run but dominant in the boulder/cobble riffle. The results of this project will be used to help explain the potential changes seen as the West Fork White River returns to its natural state.

Tuesday January 29, 2019 6:00pm - 9:00pm EST
  Poster, Ecology

Attendees (6)