高密度养殖是最大限度利用水体,提高鱼产量的有效措施之一。然而,已有报告提出,高密度放养引起一系列鱼类行为和生理变化,从而对鱼类生长起有害作用。在鱼类养殖中,寻求不影响鱼类生长,并有适当鱼产量的合理放养密度,具有重要意义。异育银鲫是鲫鱼家族中养殖新品种,在池塘、湖泊养殖中已显示较大生长潜力,网箱饲养的效果如何,尚未见诸报道。在多种鱼类混养传统模式中,鲫鱼一般作为搭配鱼,占的比例较小。鲫鱼能不能主养,变搭配鱼为主养鱼?这些就是本文试图回答和探讨的问题。 High-density farming is one of the effective measures to maximize the use of water, improve fish production. However, it has been reported that high-density stocking causes a series of fish behavioral and physiological changes that may have detrimental effects on fish growth. In fish farming, it is of great importance to find a reasonable stocking density that does not affect fish growth and that has the proper fish production. Allogynogenetic crucian carp (Carassius auratus gibelio) is a new breed in crucian carp family. It has shown great growth potential in ponds and lakes breeding. The effect of cage breeding has not been reported yet. In many traditional fish polyculture modes, crucian carp is generally used as a matching fish, accounting for a small proportion. Crucian carp can not be raised, with fish-based fish? These are the problems that this article tries to answer and explore.