| 鱼类对溶解气体过饱和水体的敏感性分析 |
| Analysis on Sensitivity of Fishes to Dissolved Gas Supersaturated Water |
| 投稿时间：2012-02-21 修订日期：2012-06-01 |
| DOI： |
| 中文关键词:溶解气体过饱和 鱼类气泡病 模型试验 |
| 英文关键词:dissolved gas supersaturation fish gas bubble disease model experiments |
| 基金项目:水利部公益性行业科研专项经费项目“水利工程对水生生物的影响和保护措施研究”(200801105);国家自然科学基金青年科学基金项目“鱼类对水动力空间结构的感知域研究”(50909064) |
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| 中文摘要: |
| 大坝泄洪可携带大量空气进入水中,导致下游河道出现溶解气体过饱和,给水生生物特别是鱼类的生存造成威胁。通过自行设计的室内试验装置,研究了影响溶解气体过饱和度的因素及不同鱼类对气体溶解过饱和的敏感性。鱼类暴露在溶解气体过饱和环境中易出现突眼、充血和气泡等气泡病症状。鲢、鳙和鳊在溶解气体含量高的水体中容易患气泡病,草鱼和鲫稍次,基本可以忽略溶解气体过饱和对黄颡鱼和鲶的影响。 |
| 英文摘要: |
| Dam discharge can carry a lot of air into the water, resulting gas supersaturation in downstream river, and this poses a threat to aquatic organisms，especially to fishes. This study aims at analyzing the sensitivity of fishes to dissolved gas supersaturated water. Through self一designed model experiments，the factors that affect dissolved gas supersaturtion and sensitivity of different fishes to dissolved gas supersaturated water were studied. The results showed that fishes exposed to dissolved gas supersaturated water proned to suffer gas bubble disease of proptosis and hyperemia or other symptoms. Silver carp(Hypophthalmichthys molitrix)，bighead carp(Hypophthalmichthys nobilis)and bream(Parabramis pekinensis ) were more likely to suffer from bubble disease than grass carp(Ctenopharyngodon idellus)and crucian carp(Carassius auratus) when exposed to high dissolved gas supersutration water. While the impact of dissolved gas superaturation caused by dam discharge to yellow catfish(Pelteobagrus fulvidraco) and catfish(Silurus asotus ) can be ignored. |
| 董杰英,杨 宇,韩昌海,霍宝良.2012.鱼类对溶解气体过饱和水体的敏感性分析[J].水生态学杂志,33(3):85-89. |
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