What purpose does the wahoo's countershading coloration serve?

Answer

It helps camouflage the fish from predators and prey

Countershading is a critical camouflage strategy used by many pelagic fish. By having a darker top and a lighter underside, the wahoo becomes difficult to spot for predators swimming below and looking up at the brighter surface, while also remaining camouflaged from prey swimming above and looking down into the darker depths of the water column.

What purpose does the wahoo's countershading coloration serve?
fishcharacteristicWahoo