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    鱼类具有完善的生理调节机制
    来源:http://www.yunsyb.com  2017-03-24 13:42:19

    鱼类对水环境的盐度适应性很大,各种鱼类能在不同盐度的水域中正常生活,这与鱼类具有完善的生理调节机制有关,但调节作用只限于一定的盐度范围内,否则将影响各种鱼类的生存。
    Adaptability to salinity of fish on the water environment, a variety of fish can live in different salinity water in normal, this fish has a sound physiological regulatory mechanisms, but the regulation is confined to a certain range of salinity, otherwise it will affect the survival of fish。
    淡水鱼鱼体组织的含盐浓度比外界淡水的含盐浓度要高,也就是说淡水的含盐浓度低、比重低、密度小,根据渗透压原理,外界淡水将不断地大量进入鱼体,因此淡水鱼只有通过肾脏,将过多的水分排出体外。


    Freshwater fish tissue containing salt concentration than the outside of the freshwater salt concentration must be high, that is to say the freshwater salt concentration is low, low density and low density, according to the principle of osmotic pressure, the outside world will continue to enter freshwater fish, freshwater fish so only through the kidneys, too much moisture excreted.
    海水鱼与淡水鱼则完全不一样,海水鱼鱼体组织的含盐浓度比外界海水的含盐浓度要低得多,由于海水中含盐分较高,因此比重高,密度大。
    Sea water fish and fresh water fish is completely different, the sea water fish body organization of salt concentration than the outside sea salt concentration is much lower, because the sea water contains high salinity, so the proportion of high density.
    根据渗透压原理,海水鱼鱼体组织中的水,将不断地从鳃和体表向外渗出。为了保持体内水分平衡,海水鱼便不得不吞食大量海水,以弥补体内的失水。
    According to the principle of osmotic pressure, the water in the tissues of sea water fish will be constantly seeping out of the gills and body surface。 In order to maintain the balance of water, sea water fish will have to swallow a lot of water to make up for the loss of water。
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    In this paper, we will provide you with the cleaning of the South fish tank。 Our website is: http://www.yunsyb.com, we will provide you with better service!

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