Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
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Estimation of Angler Mortality and Development of Live Well Management Procedures to Improve the Survival of the Largemouth Bass


July 2014 - June 2017


Black bass are the most popular sportfish in North American and, in addition to recreational angling, are the target of more than 30,000 fishing tournaments annually. The quality of bass fishing is a result of intensive regulation and the prevalence of voluntary live release. Water temperature has been consistently found to significantly affect the survival of tournament-caught bass. This research will measure the mortality that results from catch-and-release angling and tournaments across a range of temperatures and evaluate simple and easily implemented procedures for improving the survival of angler-caught bass.


Current Staff

Federal Staff: 95

Masters Students: 238

Phd Students: 144

Post Docs: 54

University Staff: 239

5 Year Summary

Students graduated: 673

Scientific Publications: 1905

Presentations: 4236



  • Harold SchrammCo-Principal Investigator
  • Kevin KeretzStudent

Funding Agencies

  • Iowa Department of Natural Resources
  • Kansas Department of Wildlife,, Parks, and Tourism
  • Kentucky Department of Fish and Wildlife Resources
  • Michigan Department of Natural Resources
  • Texas Parks and Wildlife Department


Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey