Bergstedt, R. A., Eshenroder, R. L., Bowen, C. II, Seely, J. G., and Locke, J. C., 1990, Mass-marking of otoliths of lake trout sac fry by temperature manipulation, Parker, N. C., Giorgi, A. E., Heidenger, R. C., Jester, D. B. Jr., Prince, E. D., and Winans, G. A., eds., Fish-marking techniques: Bethesda, Maryland, American Fisheries Society, p. 216-223. Abstract: Keywords: