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Fig. 6. Aerobic swimming performance in juvenile rainbow trout exposed to 394 µg
Ni l1. (A) Basal oxygen consumption rate
(
).
(B) Maximal oxygen consumption rate
(
).
(C) Aerobic scope for activity. (D) Critical swimming speed
(Ucrit). Values are means ±1
S.E.M. (N=58). Asterisks
indicate significant difference (P<0.05) from simultaneous control
mean by an unpaired two-tailed Student's t-test. Bars to the right of
the broken vertical line represents measurements made after 38 days of
exposure to clean water (C 38). BL, body lengths.