The mercury content of esculent freshwaterfishes produced from Shanghai was determined by means of the cold atomic absorption luminosity.
以上海地区出产的食用淡水鱼为试样，通过冷原子吸收光度法检测鱼体中的汞含量。
2
There are more than 500 varieties of freshwaterfishes and salt water fishes, accounting for 50% of total varieties found in China and making Fujian a major fishery region.