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Effectiveness of stocking 7-inch channel catfish to reservoir fisheries

Randy Stewart with a channel catfish from Lone Chimney Lake, Oklahoma.


January 2010 - December 2013


Oklahoma anglers pursue catfish proportionally more than the national average, making up nearly one-half (43%) of the total angling population, making this group of anglers the second-most abundant in the state. Channel catfish are also the third most sought after fish in Oklahoma. As a result, recreational angling for catfish is a top priority for the Oklahoma Department of Wildlife Conservation (ODWC), devoting a significant proportion of hatchery, survey, and management resources toward this activity. We are working to determine the contribution of stocked 7-inch channel catfish to angler catch, harvest, and satisfaction and to overall population structure in 6 medium-sized (500 – 10,000 acres) reservoirs in Oklahoma.

Research Products and Activities

Peer Reviewed Publications

  • Long, J. M. and D. R. Stewart. 2010. Verification of otolith identity used by fisheries scientists for aging channel catfish. Transactions of the American Fisheries Society 139:1775-1779. Abstract | 
  • Stewart, D.R. and J.M. Long. 2011. Mass-marking Channel Catfish Fingerlings by Immersion in Oxytetracycline. Proceedings of the Oklahoma Academy of Science 91, 31-36. Abstract |  Download  |  Publisher Website | 
  • Stewart, D.R. and J.M. Long. 2016. Using an experimental manipulation to determine the effectiveness of a stock enhancement program. Journal of Freshwater Ecology 31:37-52. Abstract | 
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  • Stewart, D.R. 2013. Factors related to stocking success of 178-mm channel catfish in medium size Oklahoma reservoirs. Doctoral dissertation, Oklahoma State University, Stillwater.


  • Stewart, D.R. and J.M. Long. 2010. Verification of otolith origin used for aging channel catfish by fisheries managers. American Fisheries Society 2nd International Catfish Symposium, St. Louis, MO June 20-22, 2010

Current Staff

Federal Staff: 2

Masters Students: 10

Phd Students: 3

Post Docs: 2

University Staff: 7

5 Year Summary

Students graduated: 26

Scientific Publications: 90

Presentations: 172



  • James LongPrincipal Investigator
  • David StewartStudent

Funding Agencies

  • Oklahoma Department of Wildlife Conservation


Oklahoma Cooperative Fish and Wildlife Research Unit Cooperators

  1. Oklahoma Department of Wildlife Conservation
  2. Oklahoma State University
  3. U.S. Fish and Wildlife Service
  4. U.S. Geological Survey
  5. Wildlife Management Institute