| 摘要: |
| 鲑鱼是人类重要的食品来源之一，具有巨大的经济价值。同时，鲑鱼资源通过输送营养物质对维持溪流和陆地生态系统的结构、功能和过程等有重要作用。而鲑鱼是对温度极为敏感的冷水性鱼类，对气候变化的反应尤为明显。本文通过文献综述法梳理相关研究，从气候变化引起的温度变化、淡水和海洋环境的变化以及鱼病传播四个方面探讨对鲑鱼丰富度和繁殖的影响，并提出研究展望。研究显示：温度变化对鲑鱼的产卵和迁徙有较大影响；溪流和河流流量的改变会影响鲑鱼的迁徙和幼年鲑鱼的存活数量；温度和二氧化碳浓度的变化使海洋食物供应减少，鲑鱼丰富度降低；水温的升高使病原体增加，鲑鱼死亡率增加。本研究成果可为鲑鱼种群应对气候变化的研究及管理提供一定的理论支持。 |
| 关键词: 鲑鱼 气候变化 丰富度 繁殖 |
| DOI： |
| 分类号:X171 |
| 基金项目:国家自然科学(41701608) |
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| Research progress on the effects of climate change on salmon abundance and reproduction |
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WANG Zhi-ping1, LI Jia-xun1, Dave Fillion2, Huo Yao-ming3, Zhou Wen-hui4
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1.School of Geographical and Oceanographic Science,Nanjing Universities;2.San Diego Zoo Safari Park;3.Institute of Environmental Engineering,Chenggong University;4.Department of Environmental Science and Engineering,Fudan University
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| Abstract: |
| Salmon is one of the important food sources for human beings and has enormous economic value. Besides, salmon resources play an important role in maintaining the structure, function and processes of streams and terrestrial ecosystems by transporting nutrients. Salmon is a cold-water fish that is extremely sensitive to temperature, and its response to climate change is particularly evident. This paper combed relevant research through literature review, and discussed the effects on the richness and reproduction of salmon from the temperature changes caused by climate change, the changes of freshwater and marine environment and pathogens, and put forward the research prospects. The results showed that temperature changes have a greater impact on the spawning and migration of salmon; changes in streams and river flows affect the migration of salmon and the survival of juvenile salmon; changes in temperature and carbon dioxide concentration reduce the supply of marine food, salmon abundance decrease; increased water temperature increases pathogens and salmon mortality increases. The contents of the study can provide theoretical support for further research and management of salmon population to cope with climate change. |
| Key words: Salmon Climate change Abundance Reproduction |