鱼晚上睡觉吗?

2025-02-16 02:34:33
推荐回答(5个)
回答1:

会睡觉。
鱼类睡觉好比人类打一个盹,睡觉时间不长,一旦有动静就会醒来,这不仅是鱼类,而且是其它低等脊椎动物睡觉共有的特性。
鱼睡眠时,都会停止游动,静止在一个地方,但停止游动的时间长短,各种鱼不一样。

回答2:

,鱼也会睡觉。因为,鱼没有眼睑,所以不能闭上眼睛。这样看上去好象它从不睡觉似的。大部分的鱼在睡觉时,只不过是在水中保持不动的宁静状态。就象人睡觉时那样,鱼就是用这种方式使它们的身体得到休息。
几乎每种鱼有时都会处于某种保存能量的状态,我们可以把这叫做休息,甚至“睡觉”,尽管这种行为可能与多数陆地动物的“睡觉”不是一回事。许多鱼类(比如鲈鱼)夜间待在圆木上面或下面睡觉。珊瑚虫白天活跃,晚上则躲在礁石的裂缝处休息。鱼类休息时的样子与其他时候截然不同。例如,许多白天聚在一起非常活跃的鲤科小鱼晚上却分散开来,在浅水中一动不劝。有些鱼则白天休息,晚上活动;但几乎所有的鱼都要睡觉。还有些动物一刻不停地游动,因为它们必须不断地把水吐出以保持呼吸;但它们在运动的时候仍有可能睡觉,我们只是不知道罢了。

回答3:

鱼是睡觉。

鱼是脊椎动物,需要用睡觉的方式消除神经系统和肢体的疲劳,但是鱼没有眼睑,它睡觉的时候不能闭上眼睛,它有时在暗处睡觉,有时钻进沙里或是分泌的泡泡里睡觉,有时还会边睡边游,各种不一样的姿势,就这样自由自在的生活着。

脊椎动物都要睡觉,鱼是脊椎动物,也需要睡觉,以消除神经系统和肢体的疲劳,但是,鱼没有眼睑(眼皮)所以它睡觉时,不能闭上眼睛。

我们常常看到鱼在水中静止不动,鱼鳃一闪一闪地活动着,这正是鱼在睡觉,如果你惊醒了它,它又会在水中游动起来

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扩展资料:

鱼类在睡觉时,通常会呈现以下的形态:

1、眼球视线向下望

2、呼吸减慢

3、对食物没大反应

4、沉进接近底部或较安全的地方

另外一些苏联科学家的研究中指出会有,对外界的变化感应迟缓至未能察觉,如:光线甚至触摸。

部分鱼类本身拥有独特的睡眠方式,如鹦鹉鱼会分泌套膜包裹身体,其它如将身体固定在石隙,岩底等在珊瑚鱼中亦很常见。

鱼类在睡眠当中通常完全静止不动,但亦有例外,如淡水鱼中的慈鲷,在产卵后的一段时间睡觉当中,还会不停煽动水流保持鱼卵有足够的氧气。

参考资料:/baike.baidu.com/item/鱼睡觉/592549?fr=aladdin"target="_blank">鱼睡觉百度百科

回答4:

鱼在晚间没有光线的情况下,会找一个受外界影响较少的位置停留下来(如水草丛中),呼吸缓慢、体色变淡、神态呆木,前鳍极少动作仅是为了保持身体平衡而已,并不主动游动,如不到平时开灯给光时间将灯突然打开,鱼的状态不仅不会立即恢复,甚至还会受惊。要过了一些时间,才会慢慢开始游动、觅食。如果提前将灯熄灭,则它们的正常活动状态,仍会继续保持一段时间。而如果到了习惯的开灯时间,并不开灯,它们仍会进入平时开灯时的活跃状态。这是我多年来对家养观赏鱼观察所见到的情况。所以我认为,鱼不仅会睡觉,而且还有固定的作息时间。

回答5:

鱼需要睡觉吗?

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