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. . set 1.6 kilometers (km) and 8 km downriver near each river bank (no mid-channel nets) to capture drifting larvae and beads. The GO flow meter incorporates a rotor coupled directly to a six-digit counter, which registers each revolution of the rotor and displays it in a fashion similar to that of an odometer. The counter is located within the body of the instrument and is displayed through the plastic housing. It is the value of the final meter reading less the initial meter reading that is used to calculate flow velocity and ultimately, the total flow sampled by the net. Drift nets were cleared of debris as frequently as needed to prevent net backflow (as sample buckets filled, sample material would interfere with amount of flow through the net) and samples were collected for up to seven hr post-release. Drift net samples were picked to remove sucker larvae and beads. Sucker larvae were preserved in 100% ethanol, otoliths were removed and mounted on microscope slides, observed under a compound microscope equipped with UV illumination, and presence of a mark was noted to differentiate marked hatchery-produced razorback sucker larvae from wild-produced larvae. Numbers of beads and larvae captured were used to determine rate of downstream drift, differences in rates of bead and larvae transport, and mixing of beads across the channel. . . . . . 2005 . In 2005, Green River flows reached over 538 m3/sec at the Jensen gage (Gage # 09261000; figures 2 and 3, gauge located a few kilometers upstream of Razorback Bar) and each of the target flood plain wetlands connected to the river. Therefore, drift net sampling was conducted in the river channel as well as in flood plain wetland breaches. Approximately 1,517,000 beads and different-sized batches of razorback sucker larvae were released simultaneously into the river at three different flows (on the ascending limb, the peak, and on the . . 22 .