养鱼池是一种人工生态系统,其结构和功能经常处于人类的影响之下,因此养鱼池的鱼产力在很大程度上取决于人类的经营方式。一般把鱼池生产力分为天然生产力和人工生产力两方面。天然生产力指通过天然饵料可 Fish ponds are artificial ecosystems whose structure and function are often under the influence of humankind, so fish stocks in fish ponds depend to a great extent on the way in which they operate. Generally, the productivity of fish ponds is divided into two categories: natural productivity and artificial productivity. Natural productivity refers to the natural food available