1. Large Lakes Observatory and Minnesota Sea GrantUniversity of Minnesota DuluthDuluth Minnesota
2. U.S. Geological Survey, Pennsylvania Cooperative Fish and Wildlife Research Unit, Pennsylvania State University, University Park Pennsylvania
3. Center for Limnology, University of WisconsinMadison Wisconsin
4. Great Lakes Environmental Research LaboratoryNational Oceanic and Atmospheric AdministrationAnn Arbor Michigan
5. Department of Fisheries and WildlifeMichigan State UniversityEast Lansing Michigan