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Welcome to the interactive web schedule for the 2019 Midwest Fish & Wildlife Conference! The schedule is subject to change (as of November 7, 2018). Please check back for updates. To return to the main Conference website, go to: www.midwestfw.org.

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Tuesday, January 29 • 6:00pm - 9:00pm
(P17) Roundup Exposure and Warm Temperatures Reduce Activity of Orconectes rusticus Crayfish

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AUTHORS. Alyssa J. Ulrich, Caleb T. Austin, Amber A. Burgett – Wittenberg University

ABSTRACT. Agricultural runoff into aquatic habitats such as streams, wetlands, and ponds can impact the survival and behavior of aquatic organisms. Additionally, climate change and warming temperatures in some areas can increase the stress, change behavior, and also increase mortality for some aquatic species. Using the species, Orconectes rusticus, we examined the impact of a sublethal dose of roundup and warmer temperatures to examine how this impacted their behavior towards conspecifics. Roundup and a warmer temperature reduced the overall activity of crayfish. There was no impact of Roundup on overall aggression towards conspecifics, however temperature did reduce aggression levels. Alterations in crayfish activity level as a result of roundup and warming temperatures could impact their role in the stream food web, as they potentially become less territorial, less adept at foraging, or shift their diet towards less active foraging methods. Crayfish behavioral changes could ultimately impact the structure and function of aquatic ecosystems.

Tuesday January 29, 2019 6:00pm - 9:00pm
Superior Ballroom CD