科研成果详情

Shrimp aquaculture is evolving from traditional open low stocking density to closed high stocking density in China. However, high density closed stocking ecosystem with eutrophication deteriorates the stocking environment of shrimps. A dynamic model simulating the growth of Chinese shrimps (Fenneropenaeus chinensis) was constructed based on the experimental data on field shrimp stocking to simulate and reflect the relationship among shrimp growth, pond ecosystem and artificial control to predict the potential risks and intervention of artificial control in macroscopic view in the production of shrimps in high density stocking pond using the ecological modeling software STELLA® 5.1.1. Seven growth parameters of shrimp were established; of which, two sensitive parameters, manual feeding and water temperature, were identified after parameter sensitivity test by Single Factor Analysis. The model was verified experimentally in the field. The model demonstrated that the growth of Fenneropenaeus chinensis was successfully simulated in a 90-day stocking circle in a high density pond. The two sensitive parameters indicated that the handling and manipulation of the manual feeding at different water temperature directly influenced the shrimp growth and production.