Repertoire of thermally induced startle-like maneuvers of Hb+ N . coriiceps and Hb- C . aceratus .

• Main Authors: Iskander I. Ismailov (11751816), Jordan B. Scharping (11751819), Iraida E. Andreeva (11751822), Michael J. Friedlander (11751825)
• Format: Still Image
• Language: unknown
• Published: 2021
• Subjects: Genetics; Physiology; Evolutionary Biology; Ecology; Sociology; Inorganic Chemistry; Environmental Sciences not elsewhere classified; Biological Sciences not elsewhere classified; unavoidable progressive hyperthermia; recent studies forecast; notothenia coriiceps </; increasing metabolic demand; include avoidance reactions; essential thermoregulatory mechanism; especially aquatic stenotherms; ecologically relevant setting; chaenocephalus aceratus </; call much attention; augment gill ventilation; many ectothermic animals; >) lacks hemoglobin; div >< p; acute ambient warming; limited thermal range; ambient warming; thermal stress; many ectotherms; expresses hemoglobin; thus facilitating; temperature continues; specific maneuvers; specific locomotor; scaleless integument; respiratory responses; repetitive startle; obligatory thermoconformation; manifests respiratory; locomotor coupling; like maneuvers; less tolerant; habitat selection; detrimental effects; deleterious effects; branchial respiration; antarctic teleosts; Antarctic; S Bend; Antarc*
• Online Access: https://doi.org/10.1371/journal.pone.0252359.g002

(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).