Fig. 2. Blood parameters in cold-acclimated (N=8-9) and warm-acclimated (N=5-6) fish before testing (Routine), at failure in the first U_crit test (E1), after a 40 min recovery (R1; this was also immediately before the start of the second U_crit test), at failure in a second U_crit test (E2), and after another 40 min recovery period (R2). ^aLevel different from the routine value; ^blevel different from the previous sampling time; ^cvalue for warm-acclimated fish different from the corresponding value for cold-acclimated fish. (A) Plasma lactate concentration. (B) Plasma potassium concentration. (C) Plasma ammonia concentration. (D) Hematocrit. (E) Plasma cortisol concentration. (F) Plasma sodium concentration.

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