Mean waveforms of locomotor activity under different lighting conditions from 2 to 7 dpf.

<p>Larvae reared under different light conditions (<b>A</b>: LDW, n = 35, <b>B</b>: LDB, n = 30, <b>C</b>: LDR, n = 30, <b>D</b>: DD, n = 45). Vertical axis represents activity (m/10 min) and horizontal axis zeitgeber/circadian time (ZT/CT). Bars above each panel indicate the lighting conditions [black bars indicate darkness, white bars indicate white light (LDW), blue bars indicate blue light (LDB), and red bars indicate red light (LDR)] and the day post-fertilization (dpf). Data are expressed as mean ± SEM.