Coosa Bass MultiState Single Season http://people.oregonstate.edu/~peterjam/occupancy_workshop/hands_on.html^M This example is of Coosa bass collected via electrofishing from four 50-80 m sections in streams at 54 sites in the Upper Coosa River basin. The objective was to evaluate the effect of streamflow variability on Coosa bass reproduction. States species not detected (state = 0). adult present (state = 1) YOY present (state = 2)