网箱鱼类排泄物收集碳汇系统与生态效能研究

为加快推进新时期现代渔业建设,探索开发、利用、保护大、中型农用灌溉水库与发电水库等蓝色国土资源的良好途径,通威股份有限公司于2009年4月,立项研究水库投饵网箱鱼类排泄物收集系统,以寻求一套生态、健康、循环养殖模式。本试验就水库网箱养殖过程中,鱼粪污染问题的解决办法做了多方面的探讨,包括鱼粪和残饵的收集、生物净化、放养模式等,并集成当前生态、健康、高效养殖技术进行对比试验,以期达到获得最好的生态、经济、社会效益。新型生态投饵网箱,实现了水库网箱箱体结构系统的创新。通过物理净化技术的支撑,并在外箱放养清洁型鱼类和箱外浮岛种蔬菜等生物净化系统结合,显著降低了水库网箱养殖对水体的污染程度的同时,增加了种植附加值和渔业碳汇,为实现"藏粮于水"打下了基础,并构建水产品质量安全追溯体系,为确保水产食品安全和渔民持续增收做出新贡献。

Fish feces collection system and its ecological efficiencies in net cage culture

The research, initiated by Tongwei Co., Ltd. in 2009, was conducted to investigate a method of healthy and ecological culture, and to well develop, utilize and protect our blue land resources-the large and medium reservoirs. In this experiment, the resolving solution on feces pollution is discussed on many aspects in the process of net cage culture, including stocking modes, collection of fish feces and surplus feed, biological purification. Moreover, the current ecological, healthy and effective culture technologies are integrated so as to achieve the maximum ecological, economic and social benefits. The newly invented ecological feeding net cage is a breakthrough in net cage structure systems. With the support of technology of physical purification and by stocking filter-feeding fish in outer cages and planting vegetables on the floating islands outside the cages, the pollution of net cage culture to water is lessened to a large extent.