What lights are used when trawling at night?

When trawling at night, fishing vessels typically use powerful floodlights to illuminate the water around the boat. These lights attract fish, particularly species like shrimp and squid, which are drawn to the bright illumination. Additionally, some boats may use colored lights, such as blue or green, as these are believed to be more effective at attracting certain types of fish. The combination of bright lights and the movement of the trawl net helps maximize catch efficiency during nighttime operations.