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Fig. 4. Bulk water absorption rates (A) and net ion transport rates
(Na+, solid bars; Cl–, hatched bars) (B) across
the isolated killifish intestine decreased after transfer from brackish water
(BW; 10% seawater; grey bars) to seawater (SW; black bars). Net absorption
occurs in the positive direction. Data are expressed as means ± s.e.m.
(N shown within each bar). *Significantly different from
pre-transfer (Pre) brackish water control (assessed using a post-hoc
test; P
0.05). Net Cl– flux was greater than net
Na+ flux overall (by two-way ANOVA).