The fish were acclimated for
15 days. At the end of this period fish body weight was
128.8 ± 15 g (mean ± SE). The stock was randomly
divided into two groups (n = 12 fish for each group),
and re-distributed in tanks (6 fish for each tank) with
the same characteristics as those described above. One
group was transferred directly from fresh water (0%)
to brackish water (BW, 10%, 273 mOsmol kg-1).