Figure 2

Schematic overview of the different protocols to determine the factors involved in Crangon crangon background matching. Arrows indicate shrimp being moved between beakers with different backgrounds, or to a dissecting microscope (microscope symbol) for pigment coverage measurements. Black and white colours indicate the colour of the sediment (bottom) and sides of the beaker. Time spent in each beaker is given below the beaker symbol. Repeated measurements with the same shrimp are indicated with continuous arrows. (1) First photo, (2) second photo, (3) colour change, * order randomly determined.