Antarctic teleosts with and without hemoglobin behaviorally mitigate deleterious effects of acute environmental warming
Fig 2
Repertoire of thermally induced startle-like maneuvers of Hb+ N. coriiceps and Hb- C. aceratus.
(A) Fast S-bend turn of N. coriiceps (33 ms intervals) at +11.1°C. (B) Intermediate velocity single-stage C-bend turn of N. coriiceps (100 ms intervals) at +12.4°C. (C) Slow multi-stage C-bend turn of C aceratus (100 ms intervals) at +8.5°C. (D) Withdrawal-like maneuver of C. aceratus (100 ms intervals) at +11.5°C. Curved arrows and circles represent midlines and centers of mass of the fishes, respectively. Silhouettes with dashed midlines represent body-shapes and positions of fishes at maximal angular velocities during the turn stage of the maneuvers (dashed vertical lines in the time plots of angular velocity). Red midlines indicate completion of the first stage of the maneuver (namely, the S- or C-bend proper) and transition to the second stage, swimming or gliding without change in direction (shown as blue midlines).