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首页> 外文期刊>Chinese Journal of Oceanology and Limnology >Comparison of growth and survival of larvae among different shell color stocks of bay scallop Argopecten irradians irradians (Lamarck 1819)
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Comparison of growth and survival of larvae among different shell color stocks of bay scallop Argopecten irradians irradians (Lamarck 1819)

机译：海湾扇贝Argopecten irradians irradians（Lamarck 1819）不同壳色种群之间的幼虫生长和存活比较

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摘要

In order to improve production and breed new broods of bay scallop Argopecten irradians irradians, different-colored orange, purple and white lines were established by two mating methods of self-fertilization and mass spawning at a commercial scallop hatchery in spring, 2002. And then larval growth and survival of different lines was compared to test whether there is a relationship between shell color and growth and survival at early developmental stage. Both growth and survival have no significant differences among different experimental larvae of self-fertilization or mass spawning. Results are as following in the order of orange, purple and white shell stock. For the self-fertilization, growth rates of larvae were 6.174, 6.412, and 6.599 μm/d, respectively. Survival rates of larvae at Day 3 were 74.41%, 76.86%, and 82.05%; Day 6 were 49.14%, 65.63%, and 52.79%; and Day 9 were 25.06%, 20.80%, and 26.47%, respectively. For the mass spawning, the growth rates were 7.836, 7.941, and 7.878 μm/d, respectively. Survival rates at Day 3 were 93.05%, 91.95%, and 92.50%; Day 6 were 79.17%, 78.05%, and 82.50%; and Day 9 were 34.72%, 36.67%, and 38.33%, respectively. The absence of any relationship between shell color and growth and survival at the larval stage may be resulted from their common genetic basis.
机译：为了提高海湾扇贝的产量并培育新的湾扇贝（Argopecten irradians irradians），通过自交和大规模产卵的两种交配方法，于2002年春季在商业扇贝孵化场建立了不同颜色的橙色，紫色和白色线。比较不同品系的幼虫生长和存活率，以检验壳色与发育早期的生长和存活之间是否存在关系。在自体受精或大量产卵的不同实验幼虫之间，生长和存活率均无显着差异。结果如下，分别为橙色，紫色和白色贝壳状。对于自体受精，幼虫的生长速率分别为6.174、6.412和6.599μm/ d。第3天幼虫成活率为74.41％，76.86％和82.05％；第6天分别为49.14％，65.63％和52.79％；和第9天分别为25.06％，20.80％和26.47％。对于大量产卵，增长率分别为7.836、7.941和7.878μm/ d。第3天的存活率为93.05％，91.95％和92.50％；第6天分别为79.17％，78.05％和82.50％；和第9天分别为34.72％，36.67％和38.33％。幼虫期外壳颜色与生长和存活之间没有任何关系可能是由于它们共同的遗传基础造成的。

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