Developing food attractants for silver carp that can be used to induce aggregation and control them: a new biochemical tool
This project identified and developed chemical food attractants for Asian carp that could be used with poison nanoparticles being developed by the USGS. Understanding how to optimize food and sex pheromones in the lab will allow researchers to develop ways to apply sensory cues to attract carp and stimulate aggregation.
In addition to knowing where these fish are, researchers would ideally also be able to stimulate them to aggregate in specific locations using attractants. Common carp and Asian carp are social animals that tend to aggregate, so this approach has great promise. Initial work with radio-tagged common carp has already demonstrated that these fish will quickly locate aggregating groups of conspecifics in the winter, when the entire group can be located and removed by seining (this is also known as the Judas fish technique). Researchers also aim to develop food and/or sex pheromone attractants to stimulate aggregations outside of the winter months.