Aaron R. Cupp Jon Amberg Brooke J. Vetter Kim T. Fredricks Mark P. Gaikowski Allen F. Mensinger Kelsie Murchy 2017 <p><span>The effectiveness of an acoustic barrier to deter the movement of silver carp, </span><i>Hypophthalmichthys molitrix</i><span> (Valenciennes</span><i>)</i><span> and bighead carp, </span><i>H.&nbsp;nobilis</i><span> (Richardson) was evaluated. A pond (10&nbsp;m&nbsp;×&nbsp;5&nbsp;m&nbsp;×&nbsp;1.2&nbsp;m) was divided in half by a concrete-block barrier with a channel (1&nbsp;m across) allowing fish access to each side. Underwater speakers were placed on each side of the barrier opening, and an outboard motor noise (broadband sound; 0.06–10&nbsp;kHz) was broadcast to repel carp that approached within 1&nbsp;m of the channel. Broadband sound was effective at reducing the number of successful crossings in schools of silver carp, bighead carp and a combined school. Repulsion rates were 82.5% (silver carp), 93.7% (bighead carp) and 90.5% (combined). This study demonstrates that broadband sound is effective in deterring carp and could be used as a deterrent in an integrated pest management system.</span></p> application/pdf 10.1111/fme.12220 en Wiley Potential implications of acoustic stimuli as a non-physical barrier to silver carp and bighead carp article