Figure 9. White sturgeon spawning event locations and simulated average depth for five streamflows at cross sections positioned every 100 meters along meander, straight, and braided reaches, Kootenai River near Bonners Ferry, Idaho. Spawning event per unit effort (SEPUE) was computed as the number of times fertilized eggs were detected on an egg mat resting on the riverbed at a sampling site divided by the time the mat was deployed (Paragamian and Wakkinen, Idaho Department of Fish and Game, written commun., 2005).