Why do floodlights flash on crab boats?

Floodlights flash on crab boats primarily to attract and locate crabs during nighttime fishing operations. The bright lights illuminate the water, making it easier for fishermen to see both the crabs and their traps. Additionally, the light can disorient crabs, causing them to swim towards the surface, making them more accessible for capture. This practice enhances efficiency and productivity in the crab fishing industry.