South Dakota State University associate professor Brian Graeb, right, hands the fish ladder down to graduate student John Lorenzen. Undergraduate David Ahrens, left, and associate professor Katie Bertrand will assist with the installation.
Graduate student John Lorenzen bolts a bracket onto a culvert along Clip Up Creek near Renner, South Dakota, as part of installing a fish ladder that will allow small-bodied fish to swim upstream.
Graduate student John Lorenzen and undergraduate student David Ahrens position a fish ladder on a culvert along Clip Up Creek northeast of Renner, South Dakota. These ladders allow small-bodied fish, such as minnows, to swim upstream and increases the connectivity of its habitat.
Graduate student John Lorenzen installs a funnel trap at the top of the fish ladder to assess how many and what types of fish are using the device to move upstream.