Estimation of actual number of parents contributing to seed production of the Japanese flounder [Paralichthys olivaceus]
1998
Ikeda, M. (Tohoku Univ., Sendai (Japan). Faculty of Agriculture) | Liu, S. | Fujio, Y.
The actual number of contributing parents for three hatchery seeds (Ncs) of the Japanese flounder were estimated based on the magnitude of random drift in allele frequencies at isozymic loci. The seeds were obtained from three different parental stocks and they were composed of the two or three offspring populations obtained at different times during the spawning season of their parental stocks. The Ncs for the seeds were from 90.3 to 126.4 and the values were reflected in the sizes of their parental stocks, respectively. Out of the eight offspring populations with in the seeds examined, the actual number of parents contributing to four offspring populations (Nco) indicated a much smaller parental stock size but the values of the remaining four almost reflected their actual parental stock size
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