Scaphirhynchus Conference: Alabama, Pallid, and Shovelnose Sturgeon

St. Louis, Missouri, 11-13 January 2005

38.  DISPERSAL OF HATCHERY REARED PALLID STURGEON FROM A STOCKING SITE ON THE LOWER MISSOURI RIVER

Andrew Starostka* and Wyatt Doyle, U.S. Fish and Wildlife Service, Columbia Fishery Resource Office, 101 Park DeVille, suite A, Columbia, Missouri 65203; Phone 573-234-2132 ext. 119; andy_starostka@fws.gov

The U.S. Fish and Wildlife Service in conjunction with the Army Corps of Engineers have stocked hatchery reared pallid sturgeon in the lower Missouri River annually for the last three years.  Hatchery managers and river biologist need to know if these stocked pallid sturgeon are surviving and adapting to the rigors of the riverine environment.  This information is critical to determine appropriate stocking strategies of this Endangered species.  Columbia Fishery Resources Office recaptured hatchery stocked pallid sturgeon as part of the Missouri River Pallid Sturgeon Monitoring Program.  We investigated movements of these recaptured hatchery pallids to determine total distance traveled from stocking site, movement up or down stream from stocking site and distance traveled over time between stocking site and capture site.  Growth of hatchery stocked pallids was determined by comparing stocked and recapture lengths and weights.