中文摘要：

在水温为（18±0．5）℃、盐度为34．3、pH为8．3的养殖条件下，通过观测试验水槽内幼鲍Haliotis和幼海胆Hemicentrotus pulcherrimtts在无模型礁和有模型礁状况下的行为反应，探讨了适合幼鲍、幼海胆栖息的模型礁的结构与形状，并统计分析了4种不同结构的PVC模型礁对幼鲍、幼海胆的聚集率。结果表明：模型礁对水槽内幼鲍、幼海胆的分布均有影响，对幼鲍和幼海胆均有聚集作用，Ⅰ型和Ⅳ型模型礁对幼鲍的聚集效果较好，最高聚集率可达60％和53％；Ⅰ型模型礁对幼海胆的聚集效果较好，最高聚集率可达53％。

英文摘要：

The behavior performance was studied in juvenile abalone（Haliotis sp. ） and sea urchin （Hemicentrotus puleherrimus） in a tank with and without artificial reef models （type Ⅰ , type Ⅱ , type Ⅲ and type Ⅳ） at a water temperature of 18 ±0. 5 ℃, pH 8.3 and a salinity of 34.3. The results showed that the models affected the distribution of the abalone and sea urchin in the tanks. All the four reef models had the congregational ,effect on the abalone and the sea urchin, especially the type Ⅰ and the type Ⅳ. There was higher congregational rate on sea urchin juveniles in type Ⅰ than in other types.