Figure 9. Concentrations (µg g−1 wet mass) of ascorbate (AA; ▪), dehydroascorbate (DA; ▪) or AA+DA (TAA; □) in the gills of Himantura signifer kept in freshwater (FW) on day 0 (control), or exposed to brackish water (salinity 20) for 1 or 6 days after a 4-day progressive increase in salinity.
Results represent mean ± S. E. M. (N = 4). Means not sharing the same letter are significantly different (P<0.05).