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Fig. 1. Measured levels of total water (A) and plasma (B) [ammonia] in the 0
(N=10), 500 (N=10), 750 (N=10) and 1000
(N=10-12) µmol l-1 NH4Cl treatments after 24
or 96 h exposure periods. Values are means + 1
S.E.M. Treatments that do not share a common
letter for a given time are significantly different from each other.
*Significant differences between exposure periods for a given
treatment (P<0.05).