Fishing efficiency of LED fishing lamp for squid jigging vessels

Abstract

This study has conducted a comparative analysis on the fishing efficiency of LED fishing lamps by squid jigging vessels, the Yeongrak-ho (16 tons) and Somang-ho (9.77 tons), which operated during September and October 2010 and during October 2011, comparing with MH (Metal Halide) fishing lamp-equipped fishing vessels. This study has also examined vessel' s fuel consumption level. The light powers of LED fishing lamps of the Yeongrak-ho and Somang-ho were 25.8kW and 32kW, respectively. Those of the MH fishing vessels, that is, the MH fishing lamp-equipped fishing vessels, were 105kW and 81kW, respectively.The average squid catch in number of an LED vessel, Yeongrak-ho, was 39.2% of the MH fishing lampequipped fishing vessels; however, that of the Somang-ho improved to 78.7% of the MH fishing lampequipped vessels. Average catch in number by Yeongrak-ho crew was 2.6 times more than catch in number by automatic jigging machines. Average catch in number by MH fishing vessel crew was 1.8 times more than that by automatic jigging machines. An LED vessel, Yeongrak-ho' s fishing rate was 17.5%-152.2% of the MH fishing vessels, that is, 61.1% on average, in comparison of combined catch in number per automatic jigging machine and per crewmember. Somang-ho' s fishing rate was 6.7%-127.6% of the MH fishing vessels, that is, 73.1% on average. The average fuel consumption level of the Somang-ho, throughout its departure from to arrival at the port, was 475.7l, and that during fishing hours was 109.6l, or 23.0% of the total fuel consumption level. Somang-ho' s fuel consumption level per fishing hour was 9.7l on average.

Artificial Light in Commercial Industrialized Fishing Applications: A Review

“…As a result, there has been a 'light war' among fishermen leading to a dramatic increase in lights in the last few decades An et al, 2017). In some squid jigging fisheries, the power requirements have reached as high as 200 kW, which consumes $900 L of diesel fuel every night, which equates to $1700 L of fuel per tonne of landed squid (see Yamashita et al, 2012;Qian et al, 2013;An and Arimoto, 2013;Matsui et al, 2016). Use of energy-saving LED lights for fishing is therefore recommended (Choi 2006;An andJeong, 2011, 2012;Jeong et al, 2013;Masuda et al, 2017).…”

Fishing efficiency of high capacity (360W) LED fishing lamp for squid Todarodes pacificus

“…LED 등에 대한 연구는 2000년 초부터 행하여 왔는데 (Inada and Arimoto, 2007;Bae et al, 2008;An et al, 2009;Shikata T. 2010), 초기에는 LED 등의 파장에 대한 연구 (Bae et al, 2008;An et al, 2009)가 많았고, 최근에는 파 장보다 광력을 중시하고 있으나 (Bae, et al, 2011;Yamashita, et al, 2012;An and Jeong, 2012;An, 2013) 10.27-10.28 11.3-11.4 11.4-11.5 11.5-11.6 11.6-11.7 11.7-11.8 11.8-11.9 11.9-11.10 11.14-11.15 11. …”