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英国布里斯托大学和埃克塞特大学最新研究显示，被不断增强级别的噪音影响的鱼，进食减少并且表现出行为紧张。不过，被测验的两种英国鱼种进食减少的方式不同。
处于噪音环境的三刺鱼觅食过程错误增多，而欧洲鲰鱼变得与同伴鱼交流增多或者自己活动减少。
布里斯托大学生物科学学院的艾琳·沃伊莉米和她的同事使用控制实验室观察研究三刺鱼和鲰鱼的觅食行为对播放的渔船声音的反应。这种声音是人类在水生环境中制造的最普遍的声音，它产生的潜在有害影响越来越受到关注。
实际生活中，由于噪音影响导致鱼类摄入食物减少可能降低生长速度、存活和繁育成功率。鱼类或许花费更多的时间来觅食，这将增加被捕食鱼类吃掉的危险，同时导致其他活动的时间减少。此外，处于噪音环境的鱼类的觅食错误更多，存在可能中毒的危险，从而进一步影响它们的健康和存活。
该研究发表在《动物习性》期刊上。
Fish exposed to increased noise levels consume less food and show more stress-related behavior, according to new research from the University of Bristol and the University of Exeter. However, the way fish decreased their food intake differed between the two British species tested.
When exposed to noise, three-spined sticklebacks made more foraging errors whereas European minnows tended to socially interact more often with their companion fish or to reduce activity.
Lead author Dr Irene Voellmy, from Bristol's School of Biological Sciences, and colleagues used controlled laboratory experiments to investigate how the foraging behavior of sticklebacks and minnows change in response to playbacks of ship noise. Such noise is one of the most common human-generated sounds in aquatic environments and its potentially detrimental effects are of growing concern.
In the real world, decreased overall food intake in response to noise could impair growth rates, survival and breeding success. Fish may invest more time in foraging to compensate which could increase their risk of being eaten by predators and also reduce time available for other activities. Moreover, fish making more foraging errors when exposed to noise may risk poisoning which would further impact on their fitness and survival.
The research is published in Animal Behaviour.
(Source: http://www.enn.com/ecosystems/article/47115)
处于噪音环境的三刺鱼觅食过程错误增多，而欧洲鲰鱼变得与同伴鱼交流增多或者自己活动减少。
布里斯托大学生物科学学院的艾琳·沃伊莉米和她的同事使用控制实验室观察研究三刺鱼和鲰鱼的觅食行为对播放的渔船声音的反应。这种声音是人类在水生环境中制造的最普遍的声音，它产生的潜在有害影响越来越受到关注。
实际生活中，由于噪音影响导致鱼类摄入食物减少可能降低生长速度、存活和繁育成功率。鱼类或许花费更多的时间来觅食，这将增加被捕食鱼类吃掉的危险，同时导致其他活动的时间减少。此外，处于噪音环境的鱼类的觅食错误更多，存在可能中毒的危险，从而进一步影响它们的健康和存活。
该研究发表在《动物习性》期刊上。
Fish exposed to increased noise levels consume less food and show more stress-related behavior, according to new research from the University of Bristol and the University of Exeter. However, the way fish decreased their food intake differed between the two British species tested.
When exposed to noise, three-spined sticklebacks made more foraging errors whereas European minnows tended to socially interact more often with their companion fish or to reduce activity.
Lead author Dr Irene Voellmy, from Bristol's School of Biological Sciences, and colleagues used controlled laboratory experiments to investigate how the foraging behavior of sticklebacks and minnows change in response to playbacks of ship noise. Such noise is one of the most common human-generated sounds in aquatic environments and its potentially detrimental effects are of growing concern.
In the real world, decreased overall food intake in response to noise could impair growth rates, survival and breeding success. Fish may invest more time in foraging to compensate which could increase their risk of being eaten by predators and also reduce time available for other activities. Moreover, fish making more foraging errors when exposed to noise may risk poisoning which would further impact on their fitness and survival.
The research is published in Animal Behaviour.
(Source: http://www.enn.com/ecosystems/article/47115)