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Monday, January 29 • 4:20pm - 4:40pm
ASIAN CARP: Advancements in Assessing Silver Carp Populations in the Illinois River, Illinois: A Comparison Between Standard Electrofishing and Novel Trawling Techniques

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AUTHORS. Jeremy Hammen, U.S. Fish & Wildlife Service, Columbia Fish & Wildlife Conservation Office; Emily Pherigo, U.S. Fish & Wildlife Service, Columbia Fish & Wildlife Conservation Office; Jason Breeggemann, U.S. Fish & Wildlife Service, Green Bay Fish & Wildlife Conservation Office; Pablo Oleiro, Missouri Department of Conservation; Jeena Credico, U.S. Fish & Wildlife Service, La Crosse Fish & Wildlife Conservation Office; Jason Goeckler, U.S. Fish & Wildlife Service, Columbia Fish & Wildlife Conservation Office; Wyatt Doyle, U.S. Fish & Wildlife Service, Columbia Fish & Wildlife Conservation Office

ABSTRACT. Silver carp are an invasive riverine species that were introduced to the United States in the 1970’s and have expanded throughout the Greater Mississippi River basin.  This expansion is a direct threat to native fish species that inhabit these systems as well as impacts recreation.  Management and monitoring of Silver Carp has been difficult due to the inability to effectively capture them.  Two novel trawling techniques (electrified dozer trawl and electrified butterfly trawl) have been developed with the potential to increase catch rates over a wide range of size classes.  These two novel trawling techniques were compared to traditional electrofishing methods currently being used for management and monitoring of Asian carp.  The electrified butterfly trawl and electrified dozer trawl had 5x and 2x greater Silver Carp catch rates than traditional electrofishing, respectively.  Small (

Monday January 29, 2018 4:20pm - 4:40pm
103A

Attendees (3)