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Tuesday, February 7 • 6:00pm - 9:00pm
Poster Display. Influence of Temperature Gradient on Macroinvertebrate Assemblages in Rapid Creek

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AUTHORS: Michaela Halvorson; Dr. Lisa Kunza

ABSTRACT: Water temperature has a profound effect on the organisms within stream ecosystems. If a stream becomes too warm or variability in temperature increases, macroinvertebrate assemblages may shift. Humans are altering the progression of temperature gradients from headwaters to downstream ecosystems. Rapid Creek has developed a temperature gradient with increasing temperatures from the tail waters of Pactola Dam to Rapid City. By examining the relationship between macroinvertebrates and temperature gradient this study will provide insight into whether there is a shift in macroinvertebrate communities that may be crucial to understanding food web dynamics. In addition to temperature, we plan to examine the following variables: stream depth, substrate type, current velocity, bank angle, and basic water quality parameters. Finally, as temperature change occurs in many freshwater ecosystems, the resulting shifts in macroinvertebrate assemblages may influence quantity and quality of resources available to support fisheries.

Tuesday February 7, 2017 6:00pm - 9:00pm CST
Lancaster Ballroom

Attendees (1)