| 生物不对称性变异在研究胁迫对水生生物的影响中的应用 |
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| 引用本文： | Dmitry Lajus,张学雷.生物不对称性变异在研究胁迫对水生生物的影响中的应用[J].海洋科学进展,2003,21(2):236-242. |
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| 作者姓名： | Dmitry Lajus 张学雷 |
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| 作者单位： | 1. 俄罗斯科学院动物研究所,圣彼,得堡,199034
2. 国家海洋局第一海洋研究所,山东,青岛,266061 |
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| 基金项目： | 国家自然科学基金资助项目——海洋浮游幼虫变态实验在环境保护中的应用(49906009)，国家海洋局青年科学基金资助项目——污染物对海洋底栖无脊椎动物早期发育的影响(2000304) |
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| 摘 要： | 化学污染，气候变化和养殖导致的遗传变化是影响水生生物的重要环境胁迫因素，会使生物种群的适应和竞争能力等健康指数降低。生物体发育的稳定性作为环境胁迫对生物健康指数的标志之一，在过去几十年的研究中得到了广泛的关注。生物发育的稳定性通常以生物不对称变异(即：与生物对称性的偏差)表示。与不对称的生物相比，具有对称性的生物个体通常生长较快、繁殖力强、存活率也高；不适宜环境往往导致生物体不对称性变异程度增加。主要就生物不对称性变异的原理、实际测定中的问题及该方法在水生生物研究中的适用范围进行了论述。
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| 关 键 词： | 水生生物 生物不对称性变异 胁迫 稳定性 环境 基因控制 |
| 文章编号： | 1671-6647(2003)02-0236-07 |
| 修稿时间： | 2002年11月2日 |
Application of Fluctuating Asymmetry in Studying Effects of Stress on Aquatic Organism |
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| Dmitry Lajus.Application of Fluctuating Asymmetry in Studying Effects of Stress on Aquatic Organism[J].Advances in Marine Science,2003,21(2):236-242. |
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| Authors: | Dmitry Lajus |
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| Abstract: | The genetic changes due to chemical pollution, chimatic change and culture are the most important factors of environmental stress influencing the aquatic organisms, and shall reduce the fitness of population, such as adaptability and competivity. The developmental stability taken as an indicator for the effect of environmental stress on fitness of organism has drawn more attention in the past decades, and is usually measured by the fluctuating asymmetry, namely, the deviation from biological symmetry. The symmetrical individuals generally have faster growth, higher fecundity and better survivability in comparison with the asymmetrical individuals, and unfavourable environments often result in the increase in fluctuating asymmetry. In this paper, the fundamentals of fluctuating asymmetry technique in aquatic organism study are discussed. |
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| Keywords: | fluctuating asymmetry stress aquatic orgamism |
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