Evaluating the illumination performance of LED fishing lamps with different configurations in Pacific saury fishery
Fei Li, Chuanxiang Hua, Qingcheng Zhu
TL;DR
This paper evaluates how different LED fishing lamp configurations affect underwater lighting and saury catch efficiency.
Contribution
The study introduces a validated illumination model to compare the performance of various LED fishing lamp configurations.
Findings
Rectangular vertically mounted LED lamps at 60° to 75° angles provided the highest illuminance for attracting saury.
Illumination distributions varied significantly based on LED shape and mounting angle.
Higher installation angles reduced differences in illuminance among LED modules.
Abstract
The configurations of artificial light on fishing vessels are important factors that affect underwater lighting characteristics, fish behavior, and catch efficiency in light fishery. A validated illumination model was used to investigate the illumination performances among three different shapes and mounting modes of commercial light-emitting diode (LED) fishing devices installed at angles of 45°, 60°, and 75°, respectively. The results showed that the illumination distributions of all these differently shaped or mounted LED modules exhibited a series of concentric iso-illuminance curves, but significant differences were found in the detailed lighting performances of the modules with different allocations. With increasing angle, the illuminance differences among the three types of LED modules decreased, and the deviations in the illumination distributions at different angles were mainly…
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Taxonomy
TopicsWater Quality Monitoring Technologies · Marine animal studies overview · Cephalopods and Marine Biology