Migratory behavior in the plume array for yearling Chinook salmon, 28 April to 18 May 2010. The graduated circular symbols represent the proportion of detections per days deployed at each receiver. All detections represented here are last detections as fish exited the plume array. Receivers in each of the north (green circles), south (yellow circles), and terminal (red circles) plume sub-arrays are shown. The black star indicates a higher proportion of fish detected at a receiver than indicated by the size of the symbol.