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Note: Session titles beginning with an asterisk (*) have student presenters.
AUTHORS: Christopher W Hickey, Kentucky Department of Fish and Wildlife Resources (KDFWR)
ABSTRACT: Bighead Carp (Hypophthalmichthys nobilis) and Silver Carp (H. molitrix) demonstrated their dispersal capabilities by reaching the Ohio River Basin (ORB) only a few years after their initial discovery in the lower Mississippi River Basin during the early 1980's. After these invasive carp species eventually established themselves within the lower ORB, they continued their dispersal into additional upstream pools and many connected tributaries. Both species of Asian Carp are now present in all pools downstream of Cincinnati, OH, but they still haven't established reproducing populations within the upper ORB. In 2013, the KDFWR worked with other agencies to develop an ultrasonic telemetry project to study numerous aspects of Asian Carp populations in the Ohio River. By 2016, the KDFWR and other agencies were tracking 400+ Asian Carp implanted with ultrasonic transmitters by maintaining 120+ stationary receivers in nine different pools of the middle to upper ORB that form a 500-mile telemetry array. The KDFWR also analyzes the telemetry data offloaded from receivers each month, which were combined into a database at the end of 2016 that contained nearly 3.7 million detections. After these detections are analyzed with others from upcoming years, the overall results should provide vital details about Asian Carp populations in the middle ORB, including their current distribution, reasons for tributary usage and methods for moving between pools. The KDFWR ultimately expects the project to produce information that could be critical to the success of ongoing efforts to keep Bighead Carp and Silver Carp out of the upper ORB.
Monday October 30, 2017 1:40pm - 2:00pm EDT
French