Effect of Acute Salinity Stress on Metabolism, Antioxidant Status, and Histological Structure of Procambarus clarkii

Figure 5

The effect of acute salinity stress ((a) 0 ppt, (b) 6 ppt, (c) 12 ppt, (d) 18 ppt, and (e) 24 ppt) on the microstructure of the gill tissue of Procambarus clarkii (, gill membrane; , respiratory epithelial cells; , microcavity blood cells. 400× magnification).