关键词: 刺参, 网箱, 幼虫培育, Apostichopus japonicus, cage, larval culture

Abstract: Under different hatchery conditions, effects of diet and environment on growth and survival of the sea cucumber Apostichopus japonicus larvae were investigated for 7 days by feeding oceanic red yeast or shading net covering. The results showed that the survival rates of the cage hatchery group were over 52.4%~57.9%, which is lower than the indoor hatchery group. When feeding with oceanic red yeast, the larvae growth rate was 86.4 μm/d, the survival rate was 55.1%±8.0%. When feeding with no diets, the growth rate was 85.1 μm/d, the survival rate was 53.0%±7.5%. No significant difference was found between fed and unfed group. The larvae survival rate in net covering group was 52.8%±7.4%, which was significant higher than the survival rate 46.9%±7.0% in uncovering group. These results should be valuable to direct the technique optimization of artificial breeding for the hatchery production of A. japonicus larvae.