Effects of Acute and Chronic Heavy Metal (Cu, Cd, and Zn) Exposure on Sea Cucumbers (Apostichopus japonicus)

Figure 2

Levels of oxygen consumption rate of Apostichopus japonicus after 15 d chronic exposure to various Zn, Cu, and Cd concentrations. The bars are the respective standard deviations (), and different letters above the bars indicate significant differences (P < 0.05).