中文摘要：

以海湾扇贝（Argopecten irradians irradians）正反交两个F1代家系为材料，研究了壳长、壳宽、壳高、全湿质量、软体部质量和壳质量6个生长指标的分布特点。结果表明，各指标两两之间均显著相关，3个质量指标均完全符合正态分布（P〉0．05），3个长度指标略偏离正态分布（0．01〈P〈0．05）。相对于标准正态分布来讲，各形态学指标较小的个体略多。6个性状指标均呈连续分布状态，符合数量遗传学特点。6个指标在正反交后代中差异显著，但均显著高于自交群体。且在反交群体中各指标离散程度较高，初步说明同一扇贝产生雌雄配子时亲本效应不同。

英文摘要：

Two reciprocal-cross F1 populations with two scallops were established and length, height, width, total weight, soft weight and shell weight were measured. All the morphological characters were significantly different （P〈0.05） in two populations. The correlation coefficients among every two traits were significant（P〈0.05）. Six characters related with growth were completely or almost accordant with normal distribution, despite some small individuals occurred more than the ones being expected. All traits were distributed continuously and shared the characters as quantitive traits. Individuals from self-fertilization had lowest levels of all traits. It was suggested that there were parental effects that influenced the growth in bay scallop.