Numbers of virile crayfish caught and missed at three stations in 1 m2 quadrats spaced 5-m apart along two randomly selected
transects oriented perpendicular to the current in August 2005 and 2006 in the middle Yampa River, Colorado. The total number of crayfish
counted and the percent missed summarize capture success in both transects at each station. Standard error (SE), coefficients of variation
(CV), and confidence intervals (CI) describe density estimates derived from the total number of crayfish captured and missed in both
transects at each station.