Joseph E. Flotemersch

Channel Catfish Movements in Relation to River Channel-Floodplain Connections

We conducted a study of channel catfish (Ictalurus punctatus) movements in the Yockanookany River, Mississippi, a river subjected to a long-reach decoupling of the river channel from its respective floodplain. We collected 40 channel catfish and surgically implanted radio-transmitters. Fish were tracked during 2 periods—March-June 1994 and November 1994-June 1995. Most fish moved ≤5 km. During elevated flows, radio-tagged fish in the river moved to or remained in the river section coupled with the floodplain. Four fish moved from the river channel into an oxbow lake when it was coupled...