Efficient methodology for capturing Crystal Darters along the Red Cedar Riverl

Abstract

Crystal darter (Ammocrypta asprella) is currently listed as an endangered species in Wisconsin. They have long and slender body with large pectoral fins and a moderately long head and snout. This species thrive in turbid and strong current water with sandy riffles, bars, and pools. Little is known about A. asprella and documented occurrences are rare in Wisconsin. The purpose of this study is to develop an effective methodology for capturing this species where it can be quantify and observed. Although previous method have shown capturing success rate with the Missouri Trawl, we will be testing other methods such as seines and electric shocker on various locations along the Red Cedar River where A. asprella were sighted. Statistical analyses will report which methodologies is significant. This research will provide valuable information for Wisconsin Department of Natural Resources so that conservation practices of A. asprella can be implemented.