Table 4. Embryo surviving rates in consecutive spawnings.
Sample resources | hatching neurula | mouth-opened larvae | 3-gill-slit larvae |
the first spawning of animals fed with mix algaes | 88.5% | 85.6% | 79.1% |
the 4th spawning of animals in Group I of Experiment I | 94.1% | 75.1% | 64.5% |
the 5th spawning of animals in Group I of Experimetn I | 63.8% | 47.1% | 42.1% |