• 研究报告 •
CUI Shen-kun, CHANG Ya-qing**, SONG Jian, CHENG Long
Abstract: In this study, six genotypes of young sea cucumber (Apostichopus japonicus) were exposed to three laboratory environments (high stocking density and natural light cycle, E1; low stocking density and dark, E2; and low stocking density and natural light cycle, E3) for 60 days, and a model was established to investigate the effects of environment, genotype, and their interaction on the survival rate and the specific growth rate (SGR) and coefficient of variation of growth traits (body length and body weight) of the young sea cucumbers. Environment, genotype, and their interaction had no significant effects on the survival rate of the sea cucumbers (P>0.05). Environment had significant effects on the SGR, but less effects on the coefficient of variation of growth traits, whereas genotype had significant effects on the SGR and the coefficient of variation of growth traits. No significant effects of genotype-environment interaction were recorded for the SGR and the coefficient of variation of growth traits (P>0.05). The SGR of the body length and body weight was the highest in the E3, with the average SGR being 0.03% and 1.58%, respectively. It was suggested that genotype × environment (light cycle and stocking density) interaction could be ignored when planning a breeding program for sea cucumber under laboratory conditions. This study provided theoretical basis for the family breeding of A. japonicus and the construction of healthy aquaculture mode.
崔慎坤,常亚青**,宋坚,程龙. 环境和基因型对刺参幼参表型变异和生长的影响[J]. 生态学杂志.
CUI Shen-kun, CHANG Ya-qing**, SONG Jian, CHENG Long . Effects of environment and genotype on phenotypic variation and growth of young sea cucumber (Apostichopus japonicus).[J]. cje.