Abstract: Diural changes in water temperature, pH, DO, NH + 4 N, COD Mn and sulphide were reported in sea water reprecipitating tanks and in larva rearing tanks during artificial reproduction of Chinese crab ( Eriocheir sinensis ) from April to May, 1997. The high water quality for zoea rearing was as follows: COD Mn 10￣20 mg/L during period from Z 1 to Z 3 and 15￣25 mg/L from Z 3 to megalopa and draining and refilling at 3:00. Content of NO - 2 N was controlced by bleaching powder. It was found that pH in the reprecipitating tank was high in mid May, which resulted in increasing level of NH 3 and high mortality in larva rearing tanks. This was one of the main reasons of heavy loss of megalopae.
邢殿楼, 李华, 宁甲昱, 白国福, 车琳萍, 高清. 中华绒螯蟹高密度育苗水质及调控方法探讨[J]. 大连海洋大学学报, 1998, 13(3): 19-25.
Xing Dianlou, Li Hua, Ning Jiayu, Bai Guofu, Che Linping, Gao Qing. Characteristics and Control of Water Quality in Intensive Artificial Breeding of Chinese Crab Eriocheir sinensis. Journal of Dalian Ocean University, 1998, 13(3): 19-25.
1998, Vol. 13 
