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PIV기법을 이용한 보리새우(Marsupenaeus japonicus )의 유영행동 가시화
이근니(Geunni LEE),이사라(Sara LEE),편용범(Yongbeom PYEON),이경훈(Kyunghoon LEE) 전남대학교 어업기술연구소 2020 어업기술연구소보고지 Vol.13 No.1
Understanding swimming patterns of marine animal is of utmost significance in ecological studies. The purpose of this experiment is to analyze the traits of swimming behaviors and abilities of the barley shrimps. We believe that our study will serve as a groundwork for the future studies by providing fundamental data. The subjects of the study are divided into two groups based on the body size, Group A of barley shrimps (110-180mm) and Group B of relatively larger barley shrimps (190-220mm). PIV was implemented to observe and record the current field generated through tail flip movements and pleopod swimming of target shrimps. The result of the experiment showed marginal difference between groups. The average flow velocity in pleopod swimming observed in Group A was 0.026m/s, whereas Group B was 0.03 m/s, which marks 1.36 times faster in speed. The average flow velocity observed in tail flip movements in Group A was 0.022 m/s, while Group B showed rather faster velocity of 0.03 m/s, again faster by 1.2 times. As a conclusion, this experiment demonstrates the relation among the size, strength and the velocity of the movements of shrimps, evidenced by greater average flow velocity in the experiment group with larger body sizes, thus showing stronger movement.
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