Fig. 4

Fluorescent area of scorpionfish body increases with background luminance. The figure shows model estimates and raw data for each background and scorpionfish species. Each point represents a measurement for each individual fish (N = 21 Scorpaena maderensis, N = 16 S. porcus). Fluorescent area is given in absolute pixel count. Markers with vertical bars represent predicted mean and 95% compatibility intervals (CIs) derived from 10,000 simulations of the posterior distribution of model parameters. The strength of the difference between two groups increases with decreasing degree of overlap of their 95% CIs