随着水产养殖技术的发展和水产养殖品种的升级换代,传统的淡水水产养殖业受到了强烈冲击,主要表现为以下几个方面。基础设施简陋,经济基础薄弱根据笔者2002年对郑州市郊区的主要渔区进行调查时发现,精养鱼塘的固定资产投资每667米2水面平均不到1000元。缺乏现代化、高水平的水 With the development of aquaculture technology and the upgrading of aquaculture species, the traditional freshwater aquaculture has been strongly affected, mainly in the following aspects. Poor infrastructure, poor economic base According to the author in 2002 on the outskirts of Zhengzhou City, the main fishing area survey found that intensive fish ponds investment in fixed assets every 667 meters 2 average less than 1000 yuan. Lack of modern, high-quality water