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Fig. 1 | BMC Biology

Fig. 1

From: Search strategy is regulated by somatostatin signaling and deep brain photoreceptors in zebrafish

Fig. 1

Changes in 3D swim trajectories after loss of illumination. a Diagram of 3D recording set up. A mirror was positioned adjacent to arena in order to simultaneously view XY and Z planes. b Representative 30-s path trajectories of larvae (red traces) during illuminated baseline conditions (left panel), immediately (middle panel) or 3–5 min after loss of light (right panel). Black traces show 2D projections in YZ and XY planes. Chamber size: 85 × 85 × 75 mm. c Mean displacement per 30-s recording period in XY and Z axes during baseline swimming (N = 10), during the first minute (T0; N = 25) and 3–5 min after loss of illumination (T3–5; N = 13). * P < 0.05 versus baseline. d Mean position of larvae in 80-mm deep chamber during baseline illumination (yellow background) and sustained darkness (grey background). N = 30 groups of five larvae. * P < 0.05 versus baseline mean

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