Overcoming Geologic and Evolutionary Constraints to Recover an Endangered Sturgeon in a Regulated River

Susannah O. Erwin1, Aaron J. DeLonay2, Patrick Braaten2 and Robert B Jacobson3, (1)US Geological Survey, Columbia, MO, United States, (2)U. S. Geological Survey, Columbia Environmental Research Center, Columbia, MO, United States, (3)USGS, Columbia, MO, United States