Volume 50 (1984) Issue 4 Pages 597-601
Importance of removal of recessive-deleterious genes from seedling population for aquaculture was mentioned before. In this context, evidence was provided for the associations between the thermostability variations of enzymes and occurrence of deficient animals of the Pacific abalone Haliotis discus hannai INO according to the theories of population genetics.
After careful examination of the above evidence together with the discussions in earlier works on inbreeding structure in the wild populations, occurrence of deficient animals, and associations between thermostability variations and temperature-tolerance of animals, a hypothesis on the mechanisms of development of deficient animals was proposed towards establishing a dependable way of detecting recessive-deleterious genes in individual animals of the Pacific abalone.