Fig. 4. Plasma glucose (A; mg dL_1) and plasma urea (B; mg dL_1) in the freshwater
(FW) and seawater-acclimated (SA: 30 ppt) air-breathing fish treated with saline
(control) or T3 (100 ng g_1) for 24 h. Each column represents mean ฑ SEM for six
fish. Statistical differences between fish were quoted after SNK test. For graphs A
and B (⁄P < 0.05) denote significant difference between FW control fish and FW fish
treated with T3. ($$P < 0.01) denotes significant difference between SA control fish
and SA fish treated with T3. (@@P < 0.01) denotes significant difference between FW
control fish and SA control fish.