The Pacific giant octopus (Enteroctopus dofleini) is one of the most important species in the East Sea fishery of Korea. The annual production of Pacific giant octopus in 2021 was 3,880 metric ton between Gangwon province and Gyeongsangbuk province. Most of the fishing gears for the octopus fishery were based on behavioral properties such as thigmotaxis and chemotaxis. Wooden octopus box is also one of the fishing gears, which is application of thigmotaxis for the octopus capture in fishing industry. In this study, the tank experiments were designed to examine the behaviour and the effect of surface roughness to the infiltration of the octopus quantitatively. Three different types of octopus boxes were used for the experiments with different surface roughness on the average of 701.6 ㎛, 141.7 ㎛ and 2.09 ㎛ for each gear. 22 trials were conducted from June to September 2021. The normality of the experiments was tested using Shapiro-Wilk normality test (p-value < 0.05). The significance of results was conducted by Kruskal-Wallis rank sum test (Chi-squarded = 21, Degree of freedom = 3, p-value < 0.05). The use of wooden octopus box with rough surface was found to enhance the catch efficiency and observe infiltration behaviour of the octopus frequently.

서 론
재료 및 방법
    수조실험
    표면 거칠기 측정
    통계 분석
결과 및 고찰
    표면 거칠기 측정
    수조 실험
결 론
사 사
References

• 김병관(국립수산과학원 동해수산연구소 연구원) | Pyungkwan KIM (Researcher, East Sea Fisheries Research Institute, National Institute of Fisheries Science, Gangneung 25435, Korea)
• 서영일(국립수산과학원 동해수산연구소 연구원) | Youngil SEO (Researcher, East Sea Fisheries Research Institute, National Institute of Fisheries Science, Gangneung 25435, Korea)
• 정성재(국립수산과학원 남해수산연구소 연구원) | Seong-Jae JEONG (Researcher, South Sea Fisheries Research Institute, National Institute of Fisheries Science, Yeosu 59780, Korea)
• 양재형(국립수산과학원 동해수산연구소 연구원) | Jaehyeong YANG (Researcher, East Sea Fisheries Research Institute, National Institute of Fisheries Science, Gangneung 25435, Korea) Corresponding author