| 不同盐度海水对锯缘青蟹幼蟹生长变态的影响 |
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| 引用本文： | 于忠利,乔振国,刘健. 不同盐度海水对锯缘青蟹幼蟹生长变态的影响[J]. 海洋渔业, 2001, 23(3): 126-128 |
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| 作者姓名： | 于忠利 乔振国 刘健 |
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| 作者单位： | 1. 中国水产科学研究院东海水产研究所,
2. 上海市水产办公室, |
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| 摘 要： | 实验室条件下比较了盐度为0、3.38‰、6.76‰、10.14‰、13.52‰、16.99‰条件下锯缘青蟹由二期幼蟹至六期幼蟹的生长变态情况。初步结果表明:青蟹幼蟹在变态为四期幼蟹之前,对环境盐度条件有较高的要求:盐度低于10‰,将延长其变态周期和降低成活率;四期幼蟹以后对盐度的适应能力明显增强,此阶段适当降低盐度,将有助于缩短其蜕壳周期。
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| 关 键 词： | 锯缘青蟹幼蟹 盐度 成活率 变态 |
Effect of Various Sea Water Salinity on the Metamorphosis of Mangrove Crab Larvae |
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| Yu Zhongli,Qiao Zhenguo. Effect of Various Sea Water Salinity on the Metamorphosis of Mangrove Crab Larvae[J]. Marine Fisheries, 2001, 23(3): 126-128 |
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| Authors: | Yu Zhongli Qiao Zhenguo |
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| Abstract: | This experiment was carried out in laboratory to compare the metamorphosis of Scylla serrata from C2 to C6 with different salinity of 0, 3. 38, 6. 76, 10. 14, 13. 52 and 16. 99ppt. The preliminary results indicate that the larvae before metamorphosing to Q are rigorous requirement to salinity. The metamorphosis cycle will be extended and surviving rate will be decreased if salinity is under 10ppt. The acclimatization obviously enhanced after C4. It will be helpful to shorten its ecdysis cycle if decreasing salinity during this period. |
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| Keywords: | Mangrove crab larvae salinity survival rate metamorphosis |
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