1. Allendorf, F W, and Leary, R F. 1986. Heterozygosity and fitness in natural populations of animals. In: Soulé, M. E. (ed.) Conservation Biology: the Science of Scarcity and Diversity, pp. 57–76. Sinauer, Sunderland, MA.
2. Angus, R A, and Schultz, R J. 1983. Meristic variation in homozygous and heterozygous fish. Copeia, 1983, 287–299.
3. Brandlova, J, Brandl, Z, and Fernando, C H. 1972. The cladocera of Ontario with remarks on some species and distribution. Can J Zool, 50, 1373–1404.
4. Brooks, J L. 1957. The Systematics of North American Daphnia. Academic Press, New Haven, CT.
5. Chai, C K. 1957. Developmental homeostasis of body growth in mice. Am Nat, 85, 49–55.