Walleye (Fish); Sauger; Electrophoresis
Of 125 phenotypic walleye screened by isozyme electrophoresis, one unusual individual was detected and subsequently suspected of being a walleye (Stizostedion vitreum vitreum) x sauger (S. canadense) hybrid. The isozyme pattern obtained for L-iditol dehydrogenase (IDDH, E.C. 126.96.36.199), phosphoglucomutase (PGM, E.C. 188.8.131.52) and a fast migrating aspartate aminotransferase (AAT, E.C. 184.108.40.206) isozyme showed that this individual had both walleye and sauger isozymes. Isozyme analyses is a useful technique for distinguishing walleye x sauger hybrids from parent species. This is the first report of alleles of the AAT* locus being species specific for sauger and walleye, and the first confirmed report of naturally occurring walleye x sauger hybrids in Minnesota.
Fulton, J. E.,
Otis, J. S.,
Guise, K. S.
Identification of Walleye X Sauger Hybrid By Isozyme Electrophoresis.
Journal of the Minnesota Academy of Science, Vol. 60 No.3, 4-6.
Retrieved from https://digitalcommons.morris.umn.edu/jmas/vol60/iss3/3