• 한국광학회지
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• 제25권6호
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• pp.315-325
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• 2014

어류를 잡기 위한 기존의 여러 방법 중 하나로, 한국과 일본에서는 광원을 이용해 오징어를 잡는 방법이 주로 행하여져 왔다. 사용된 광원으로는 메탈할라이드를 이용한 방법이 주로 이용되었으나 유가 상승으로 인한 유지비용 상승이 문제로 대두되어져 왔다. 또한 메탈할라이드 광원은 고온으로 인한 화상의 위험과 인체에 유해한 자외선 스펙트럼 방출로 인하여 어업인의 건강을 위협하여 왔다. 이에 반해 엘이디 광원은 저전력, 저발열의 장점을 가지고 있어서 메탈할라이드 광원을 대체하는 연구가 주로 한국과 일본에서 이루어져 왔으나, 메탈할라이드 광원 대비 낮은 광량과 다른 배광특성으로 인해 어획량은 메탈할라이드 집어등 어선 대비 저조한 실정이다. 이러한 문제점을 해결하고자 본 논문에서는 기존의 메탈할라이드 집어등 어선과 가장 유사한 조도 분포를 얻기 위해 메탈할라이드 광원과 엘이디 광원을 조합 배치하였고, 그때의 수심별 조도 분포 시뮬레이션을 하여 최적의 배치조건을 제시하였다.

• 수산해양기술연구
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• 제47권4호
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• pp.327-337
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• 2011

This study was conducted to develop energy-efficient LED lamps with an excellent fishing performance for an anchovy scoop net by comparing the functions of 6 different lamps- incandescent, blue LED, green LED, white LED, yellow LED and red LED lamp. We used incandescent and red LED lamps only for the initial test and then excluded because those showed the lowest herding capacity. According to the result, yellow LED showed lower herding capacity in comparison with the blue, green and white one. Although the herding performance of the blue, green and white LED was similar in almost tests, herding speed to the each light was different. The anchovies were gathered into the blue LED as the speed of 39.88cm/s that was the fastest. Green LED was the second as the speed of 33.28cm/s. White LED was the slowest as the speed of 26.73cm/s. We will have field tests because we found the result that yellow LED's herding performance was better than green LED's for 5 seconds comparing after starting in some tests.

• 수산해양기술연구
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• 제52권3호
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• pp.276-280
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• 2016

This study investigated luring distributions by water layer of common squid which were targeted by angling fishing vessels equipped with LED and metal-halide lamps using a scientific echosounder with a 120 kHz frequency in order to develop energy-effective underwater fish aggregation devices. In the analysis, angles of a transducer were changed from $0^{\circ}$ to $45^{\circ}$ and were rotated every $10^{\circ}$ horizontally. It was shown that common squid were densely distributed from the surface to 40 m and they were also distributed in directions of $10^{\circ}{\sim}+30^{\circ}$, $-30^{\circ}{\sim}-60^{\circ}$, and $-120^{\circ}{\sim}-130^{\circ}$with the head of vessel as the center. Comparative results of angles of transducer on acoustical densities of common squid distributing in 21~40 m water depth showed an average $101.8m^2/nm^2$ in vertical direction of $0^{\circ}$, $12.3m^2/nm^2$ in angle of $30^{\circ}$, and $42.4m^2/nm^2$ in angle of $45^{\circ}$, respectively. It implied that more considerations on acoustic scattering strength by incidence angle direction of the transducer and swimming oriental angle direction of common squid would be required.