浮游动物群落的结构只有相对的稳定性。随着季节的转换,海洋环境条件的变化,不仅种类组成更迭频繁,羣落中各种之间的数量关系亦经常不断地有所变动。因此,浮游动物群落的界限是比较难以确定的。同时,浮游动物群落的生活小区的分界,也常常是不十分明确的。一般说来,在理化性质比较均一的水系或水团中,浮游动物韦落的结构,相对 The structure of zooplankton community is only relatively stable. As the seasons change, the changes in the marine environmental conditions not only change the species composition frequently, but also constantly change the quantitative relationship among the various species in the community. Therefore, the zooplankton community boundaries are more difficult to determine. At the same time, the demarcation of zooplankton community is often not very clear. In general, the structure of zooplankton in the relatively homogeneous physical and chemical properties of water system or water, the relative structure