| 饥饿对漠斑牙鲆前期仔鱼生长发育的影响 |
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| 引用本文： | 徐永江,蔡文超,柳学周.饥饿对漠斑牙鲆前期仔鱼生长发育的影响[J].海洋水产研究,2007,28(6):51-55. |
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| 作者姓名： | 徐永江 蔡文超 柳学周 |
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| 作者单位： | 1. 农业部海洋渔业资源可持续利用重点开放实验室,中国水产科学研究院黄海水产研究所,青岛,266071
2. 农业部海洋渔业资源可持续利用重点开放实验室,中国水产科学研究院黄海水产研究所,青岛,266071;中国海洋大学,水产学院,青岛,266003 |
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| 基金项目： | 农业部948项目(2001-479-4)，青岛市科技局科技计划专项项目(00-02-10-1) |
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| 摘 要： | 研究了饥饿对漠斑牙鲆前期仔鱼生长发育的影响,并计算了仔鱼的饥饿不可逆点。结果表明,仔鱼3日龄开口,卵黄于5日龄消耗完毕,油球于6日龄消耗完毕,混合营养期为3～6日龄,饥饿对仔鱼卵黄和油球的吸收速度影响不显著。摄食仔鱼生长呈线性增加,饥饿仔鱼则在饥饿开始一段时间后呈现负增长的趋势。10日龄饥饿仔鱼出现较为明显的饥饿特征,如胸角凸出,消化道萎缩等。在18～20℃培育水温下,仔鱼饥饿不可逆点出现在7日龄和8日龄之间。
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| 关 键 词： | 漠斑牙鲆 仔鱼 饥饿 不可逆点 胸角 |
| 文章编号： | 1000-7075（2007）06-0051-06 |
| 收稿时间： | 2006-05-23 |
| 修稿时间： | 2006-07-16 |
Effects of starvation on growth and development of early stage larvae of southern flounder |
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| XU Yong-jiang,CAI Wen-chao,LIU Xue-zhou.Effects of starvation on growth and development of early stage larvae of southern flounder[J].Marine Fisheries Research,2007,28(6):51-55. |
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| Authors: | XU Yong-jiang CAI Wen-chao LIU Xue-zhou |
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| Abstract: | Effects of starvation on growth and development of southern flounder larvae Paralichthys lethostigma were studied,and the point-of-no-return(PNR)was determined. Larvae opened mouth at 3 days after hatching(DAH);yolk and oil globules were completely absorbed at 5 DAH and 6 DAH,respectively.The mixing diet period was about 4 days.Some remarkable characteristics of starving larvae appeared after 6 DAH,such as pectoral angle(PA) and atrophy of intestines(AI).Total length(TL)of fed larvae increased continuously;while the starving larvae decreased in TL after 3 DAH when their mouths were open,and the PNR was between 7 DAH and 8 DAH. |
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| Keywords: | Paralichthys lethostigma Larvae Starvation PNR Pectoral angle |
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