2 种底栖硅藻饲养杂色鲍幼体和稚贝的饵料效果Effects of - OALib.PDFVIP

第 7 卷第 1 期 南 方 水 产 科 学 Vol. 7, No. 1 2 0 1 1 年 2 月 South China Fisheries Science Feb. , 2011 doi: 10. 3969/j. issn. 2095 - 0780. 2011. 01. 005 2 种底栖硅藻饲养杂色鲍幼体和稚贝的饵料效果 黄海立, 杜晓东, 周银环 ( 广东海洋大学, 广东 湛江 524025) 摘要: 用羽纹藻 ( Pinnularia sp. ) 、简单双眉藻 ( Amprhora exigua) 、羽纹藻和简单双眉藻混合 ( 混合组) 作为 饵料, 以自然海区采集的硅藻作对照, 研究其对杂色鲍 ( Haliotis diversicolor) 幼体和稚贝成活和生长的影响, 确 定人工分离的 2 种硅藻的饵料效果。结果表明, 2 种底栖硅藻在杂色鲍育苗中具有一定的饵料价值。饵料种类对 不同规格杂色鲍的成活率和生长影响显著, 并且 2 个观测指标的结果相同。幼体羽纹藻组、简单双眉藻、混合 组 3 组间的成活率、生长无显著差异, 但都明显比对照组低; 稚贝简单双眉藻、混合组和对照组无显著差异, 羽纹藻组显著比对照组低。 关键词: 底栖硅藻; 杂色鲍; 幼体; 稚贝; 生长; 成活率 中图分类号: S 968. 31 + 5 文献标志码: A 文章编号: 2095 - 0780 - ( 2011) 01 - 0032 - 07 Effects of feeding larvae and juveniles of Haliotis diversicolor with 2 benthic diatoms HUANG Haili, DU Xiaodong, ZHOU Yinhuan ( Guangdong Ocean University, Zhanjiang 524025, China) Abstract: In order to investigate the effects of 2 diatoms on the growth or survival of larvae and juveniles of Haliotis diversicolor, we compared Pinnularia sp. , Amprhora exigua and the mix ( a mixture of Pinnularia sp. and A. exigua) with the control ( natural diatoms collected from sea) . The results indicate that different diets have significant effects on the growth and survival of H. diversicolor at dif- ferent sizes ( P 0. 05) . There is no significant diffrence in the growth and survival of larvae fed with Pinnularia sp. , A. exigua and the mix ( P 0. 05) , and all significantly lower tha