The separate and combined effects of copper and cadmium on the survivorship of penaeid shrimps
Munshi, A. B.
Su, Y. Q.
Li, S. J.
- 海洋环境－已发表论文 
Critical survival tate for all larval stages of penaeid shrimp was determined using static bioassay with copper, cadmium and their 1:1 mixture. The lethal concentration (24 h LC50) was 200 mug/L of Cu, 250 mug/L of Cd and 300 mug/L of mixture in average for all larval stages along with slight variation at every stage (Nauplii - Myses III) in Penaous monodon LC50 was 400 mug/L, In Penaeus penicillatus LC50 the values were found to be 200 mg/L of Cu, 230 mug/L, of Cd and 250 mug/L for mixture in Nauplii to Myses however for postlarvae the LCH, was within the same as in Penaeus monodon; The estimation of survival rate within 24-48 h under lethal and acceptable concentration of copper and cadmium showed culturing farmers at most productive and safe condition of their ponds.