Steve Meismer, Local Coordinator for the Virgin River Program, explained that the barrier is designed to prevent the spread of the Red Shiner fish, an invasive species that poses a significant ...

Dams also prevent shiners from migrating up- and downstream to find better habitat during times of low stream flow, and they encourage these fish to linger in deep areas rife with nonnative predators.

Dams also prevent shiners from migrating up- and downstream to find better habitat during times of low stream flow, and they encourage these fish to linger in deep areas rife with nonnative predators.