▌作品介绍：“长江鱼王”——中华鲟是一种珍稀海栖性的洄游鱼类，如今它却面临一场空前的生存危机！因环境污染、长江流域大型水利工程的建设等因素，严重影响了它的洄游路线和繁殖场所，使之种群数量急剧减少，并濒临灭绝危险。 为了保护这一珍稀的物种，在大型水利工程上开设鱼类洄游专用通道势在必行！根据连通器的原理，在大坝上建起一条洄游通道，自高处到坝外的低处，以较长的水道和较缓的坡度，将通道一直延续到坝下的水面。中华鲟等自然洄游的鱼类游到这里，洄游通道上方的探测装置就自动打开，中华鲟等鱼类就可以顺着这条水道，游到大坝的上游水域去产卵，繁衍下一代。上游的鱼也可以通过这条水道，游到下游去完成自然的生息、成长。
此文自动翻译Introduction:“Fish King of the Yangtze River” – Acipenser sinensis is a rare marine migratory fish, but now it is facing an unprecedented survival crisis! Due to environmental pollution and the construction of large-scale water conservancy projects in the Yangtze River Basin, its migration routes and breeding sites are seriously affected, resulting in a sharp decrease in population and endangering the risk of extinction. In order to protect this rare species, it is imperative to set up special passageways for fish migration in large-scale water conservancy projects. According to the principle of connector, a migration passage is built on the dam, from high to low outside the dam, to extend the passage to the water surface under the dam with a longer waterway and a slower slope. Natural migratory fish such as Chinese sturgeon swim here, and the detection device above the migration channel opens automatically. Chinese sturgeon and other fish can swim along this channel to the upstream waters of the dam to lay eggs and breed the next generation. The upstream fish can also swim downstream through this channel to complete the natural growth.
