“…All these factors are species‐specific and light intensity‐dependent (Batty, ; Tian, Zhang, Xu, Wang, & Liu, ). Light intensity enables fish to see diets for feeding (Boeuf & Le Bail, ; Elliott, ), escape from predators (James & Heck, ; Tałanda, Maszczyk, & Babkiewicz, ), hunt suitable preys (Cerri, ; Granqvist & Mattila, ) and find out habitats (Harvey, Butler, McLean, & Shand, ; Mol & Ouboter, ). Light can also influence the skin colour of some fishes which may be changed by the absorption, reflection and scattering of light by the pigments and microstructures within the fish integument (Leclercq, Taylor, & Migaud, ; Sugimoto, ).…”