Figure 1
Swimming performance in adult zebrafish declines with age. Measurements of (A) body weight, (B) standard length, and (C) kyphosis angle in young and aged zebrafish. (D) Diagram of the testing area. (E,F) Heat maps depicting the time spent by animals in each (x,y) coordinate position. Locomotor measurements of (G) total distance traveled (q = 0.0039), (H) velocity (q = 0.0027), (I) acceleration (q = 0.0027), (J) turn angle (q = 0.0009), (K) absolute angular velocity (q = 0.0009), and (L) lateral body motion (q = 0.0013) (n = 7?8). Depiction of (M) turn angle, (N) angular velocity, and (O) lateral body motion. Data are presented as the mean ± SD.