体内没有鱼鳔,因此身体不会自动浮升,必须不断游泳,防止沉下水底。
研究发现前两种声音实际上是水虎鱼的肌肉打击自己的鱼鳔发出的。
一般是经由鳃呼吸。大部分硬骨鱼有鳔,这是源于消化管的憩室,司控制浮力或为辅助呼吸器官。
很多小鱼孵化出来时,胸鳍还没有完全成形,而且所有的鱼孵化时都还没有形成鱼鳔。
事实上,世界现存37种的海马是鱼类,他们用腮呼吸,用鱼鳔控制他们在水中的沉浮。
1·Ranchu There are two swim bladder due to internal or external factors have made one or two contract there can not maintain a balance lead to the disease this view was generally accepted.
兰寿有两个鳔,由于内部或外部因素使其中的一个或两个发生收缩,无法维持平衡导致发病,这种说法被普遍接受。
2·The eye sac, ear vesicle, heart, digestive tract, kidney, swim bladder, pectoral and tail fin were developed preferentially.
在整个发育过程中,眼、耳囊、心脏、消化道、肾脏、鳔、胸鳍和尾鳍等得到了优先发育。
3·Morpholino knockdown of CagApo-14 results in severe disruption of digestive organs including liver, intestine, pancreas, and swim bladder.
MO敲降CagApo-14的 表达将严重破坏鱼类消化系统的发育,包括肝脏、肠、胰脏和鳔。
1·Indeed, the world's 37 species of seahorse are fish, breathing through gills and using a swim bladder to control their buoyancy.
事实上,世界上有37种海马是鱼,它们通过鳃呼吸,用鱼鳔来控制浮力。
2·Those fins join onto a central body that contains a mechanical swim bladder, which allows the robot to maintain a given depth by adjusting its buoyancy.
那些翅片加入到包含一个机械鱼鳔,这允许机器人保持给定的深度通过调节其浮力的中心体。