Figure 1.

Physiological changes after zinc depletion. (A) Elemental composition of whole body (minus gill) determined by ICP-MS. (B) Unidirectional Zn²⁺ influx across the gills. Zebrafish were treated with zinc depleted feed and water for 14 days and compared with fish kept at the standard control condition. The bars represent the mean of nine fish for elemental composition or eight fish for Zn²⁺ influx analysis; error bars denote standard deviation (SD). A statistical significance between control and zinc deficiency is shown by an asterisk (P < 0.05).