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鱼是生活在水中,所谓鱼的生活环境,包括自然界的大气、水、土、光、热等非生物因素,以及植物、动物、微生物等生物因素。它们又可以归纳为物理的(底质、水温、光照、透明度、水流等)、化学的(氢离子浓度(PH值)、溶解氧、盐度、碱度、营养盐类)和生物的因素(生物之间的相互关系,捕食者和被捕食者)。鱼类的各种环境因素,对鱼的生长、发育和繁殖等都有明显影响,因而在养殖生产上也影响着鱼产量。例如:在人工养殖的池塘中,鱼类中有些种
Fish is living in the water, the so-called fish living environment, including nature’s atmosphere, water, soil, light, heat and other non-biological factors, and plants, animals, microorganisms and other biological factors. They can be summarized in terms of physical (sediment, water temperature, light, transparency, water flow, etc.), chemical (hydrogen ion concentration (PH), dissolved oxygen, salinity, alkalinity, Biological interrelationships, predators and prey). The various environmental factors of fish have a significant impact on the growth, development and reproduction of fish, and therefore affect the fish production in breeding production. For example, there are some species of fish in farmed ponds