| 光周期条件对罗氏沼虾幼体存活率及体长生长率的影响 |
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| 引用本文： | 林小涛,杞桑.光周期条件对罗氏沼虾幼体存活率及体长生长率的影响[J].暨南大学学报,1996,17(1):69-73. |
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| 作者姓名： | 林小涛 杞桑 |
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| 作者单位： | 水生生物研究所 |
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| 基金项目： | 国务院侨办重点学科科研基金 |
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| 摘 要： | 用４Ｌ：２０Ｄ、８Ｌ；１６Ｄ；１２Ｌ；１２Ｄ和２４Ｌ：０Ｄ四种光周期条件培养罗氏沼虾骚状幼体，观察其存活率和生长、发育情况。研究结果表明，随着光照时间的延长，特别是在连续照明的条件下，与最短的光照条件相比，幼体的存活率及体长生长率分别提高１５７．７％和２．２％ｄ，而育成Ｐ１的时间却相应缩短了１０ｄ。
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| 关 键 词： | 罗氏沼虾 幼体 光周期 存活率 生长率 |
Influence of Photoperiod on Survival and Growth of Macrobrachium rosenbergii larvae |
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| Lin Xiaotao,Qi Sang.Influence of Photoperiod on Survival and Growth of Macrobrachium rosenbergii larvae[J].Journal of Jinan University(Natural Science & Medicine Edition),1996,17(1):69-73. |
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| Authors: | Lin Xiaotao Qi Sang |
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| Abstract: | The experiments were carried out on the iceal larvae of Macrobrachium rosenbergii(De Man) to exadrine the effect of photoperiod on survival and growth in body length.The larvae were reared from first iceal stage to postlarval stage under 4L:20D,8L:16D, 12L : 12D and 24L:0D photoperiods, separately.There were significant differences in survival and growth rate. Reared in long-day especially under continuous illumination, rates of survival and growth of larvae were 15.7% and 2.2%/d higher respectively. Metamorphosis was 10 d faster than that in short -day. |
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| Keywords: | Macrobrachium rosenbergii larvae photoperiod survival growth rate |
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