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Fig. 2. Plasma concentrations of (A) chloride (Cl–, dashed line),
sodium (Na+, solid line), (B) potassium (K+, solid
line), calcium (Ca2+, dashed line) and magnesium (Mg2+,
dotted line), over the duration of the experiment in which fish were fed a 1%
of body mass ration via an oesophageal catheter. Values are means
± s.e.m. (N=11). A single asterisk denotes P<0.05,
whereas a double asterisk indicates P<0.01 [adjusted P
value; RM-ANOVA followed by a multiple pairwise control (pre-feed) comparisons
versus post-feed groups using the Bonferroni t-test
method].