Hiệu quả ứng dụng đèn đi-ốt phát quang (LED) cho nghề lưới chụp khai thác hải sản

Abstract

    Fishing with an artificial light stimulus has existed for thousands of years and has gradually developed into a one of the most advanced, efficient, and common methods for the stick-held falling net fisheries in Vietnam. This study evaluated the effectiveness of light emitting diode (LED) in comparison with the use of metal halide (MH) in the stick-held falling net fisheries. The results showed that fuel consumption of boats per trip using LED lamps was significantly reduced by as much as 36.0%, catch per unit effort (CPUE) has increased 10.9%, the profit of boats has increased 34.3%, the income of fishermen on fishing boats increased 34.5% compared with traditional capture methods. This study also showed the potential of CO₂ emission reduction up to 5.75 tons of CO₂ per trip per boat from the use of LED lamps in the stick-held falling net fisheries. An initial investment in LED lights by a fishing boat will require additional funds, however, our analysis indicates that the financial break-even point (return on investment) can be achieved after 12.6 monthly trips.