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本研究采用不同盐度的海水，以秋冬季生殖真鲷的受精卵和仔鱼为材料，观察不同盐度下真鲷的受精卵的沉浮性；不同盐度对胚胎的孵化时间和孵化率的影响；不同盐度下仔鱼的分布状态和死亡率，研究结果表明，真鲷受精卵在盐度２７．８％以下的海水中呈沉性；在３１．２％以上的海水中则呈浮住；盐度２８．１５‰～３０．２‰．则为由沉性变为浮性的过渡阶段。真鲷受精卵在盐度１１．０８‰～４８．８５‰范围内均能孵化，但孵化的适盐范围为２７．１％～３８．０５‰，而孵化的最适盐度为２８．１５‰～３２．７０‰，从仔鱼的分布状态和仔鱼的成活率综合分析，真鲷仔鱼培育的最适盐度范围为２８．１５‰－３２．７０‰。
In this study, different salinities of seawater were used to study the effects of different salinities on the hatching time and hatching rate of embryos under different salinities, using fertilized eggs and larvae of reproductive seabream in autumn and winter as materials. The distribution and mortality of larvae at different salinities indicated that the zygotes of the seabream were submerged in seawater with a salinity of 27.8% Salinity 28.15 ‰ ~ 30.2 ‰. Then from the sink into a floating transitional stage. The seabream fertilized eggs could hatch in the range of 11.08 ‰ ~ 48.85 ‰ salinity, but the hatching range of suitable salt was 27.1% ~ 38.05 ‰, while the hatching optimum salinity was 28.15 ‰ ~ 32.70 ‰. Based on the analysis of the distribution status of larvae and the survival rate of larvae, the optimum salinity range of sea bream larvae was 28.15 ‰ -32.70 ‰.