1. Y. Fujio: Study of genetic characteristics of fish and shellfishes in isozyme analysis, Nosuishyo Tokubetsu Shiken Kenkyu, 1-64 (1984).
2. 1) F. W. Allendorf and F. M. Utter: Population Genetics in Fish Physiology, Vol. VIII, Academic Press Inc., 1979, pp. 407-453.
3. 2) L. R. Donaldson and P. R. Olson: Development of rainbow trout brood stock by selective breeding. Trans. Amer. Fish. Soc., 85, 93-101 (1951).
4. 3) A. A. Barinova, M. Nakajima, and Y. Fujio: Genetic variability of laboratory populations of the guppy Poecilia reticulata. Tohoku J. Agr. Res., 48, 35-42 (1997).
5. 4) J. M. Macaranas and Y. Fujio: Genetic differences among strains of the guppy, Poecilia reticulata. Tohoku J. Agr. Res., 37, 75-85 (1987).