多种鱼类合理混养,作为获得高产的一项生物学措施,早已为人们所熟知。但往古至今在选择养殖对象时,往往着眼于浮游生物和底栖生物的利用,还有一个很重要的食物资源——腐植质和有机碎屑(以下统称腐屑)——常为人们所忽视,而后者在能量流动和物质循环中的作用不一定低于前者。因此,在一定程度上限制了水体生产能力的发挥。我国现有的一些养殖对象如咸淡水的鲻鱼 Mugil cephalus Linnaeus、梭鱼 MugilSo-iuy Basilewsky、两广的鲮鱼 Cirrhinusmolitorella(C.et.V.)和近年来引进的 Proper polyculture of many species of fish has long been well known as a biological measure to achieve high yields. However, in the past, the selection of farmed animals often focused on the use of plankton and benthic organisms. There was also a very important food resource - humus and organic detritus (hereinafter referred to as “detritus”) - often overlooked by people , While the latter’s role in energy flow and material circulation is not necessarily lower than the former. Therefore, to a certain extent, limit the development of water production capacity. Some of China’s existing breeding objects such as brackish freshwater fish Mugil cephalus Linnaeus, barracuda MugilSo-iuy Basilewsky, Guangdong and Guangxi of the anchovy Cirrhinus molitorella (C.et.V.) And introduced in recent years