Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
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American eel age and growth assessment in the Roanoke River, North Carolina.


June 2014 - June 2018


We will systematically sample American eels from the Roanoke River in North Carolina. Eels will be sampled near the river mouth, upstream above and below high dams to specifically characterize the American eel population within the Roanoke River mainstem. Additionally, the age, sex, and presence of a parasite in swimbladders of individual fish will be determined from sampled eels. Finally, age, growth, and mortality of American eels will be modeled in relation to location sampled, sex, and the presence of parasites as data allow. Information from these objectives will be synthesized to provide a better understanding of American eel ecology and management.


Current Staff

Federal Staff: 95

Masters Students: 239

Phd Students: 143

Post Docs: 53

University Staff: 239

5 Year Summary

Students graduated: 701

Scientific Publications: 1949

Presentations: 4262



  • Thomas KwakPrincipal Investigator
  • Jesse FischerCo-Principal Investigator

Funding Agencies

  • U.S. Fish and Wildlife Service


Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey