근해 유자망 어구를 이용한 어구자동식별장치의 현장 적용 시험에 관한 연구

Abstract

In order to examine field applicability of the trial product of the automatic fishing gear identification device internalized in the Automatic Identification Monitoring System for Fishing Gears being presently developed, this researcher conducted field applicability tests and a survey to figure out problems that can occur in the process of fishing operation when it is attached to the drift gill net targeting coastal drift gill nets. Averagely, it took about 90.6 minutes for shooting and about 631 minutes for hauling. About the distance of moving, the drift gill net travelled 11,500m, 10,300m, and 2,033m in order in each of the sessions. According to the results of three field applicability tests on the trial product of the automatic fishing gear identification device, the B-type underwater transmitter’s trial product has been found to be more excellent than the A-type one in terms of the conditions of the exterior, water-proof function, PCB, and LED operation. The underwater transmitter of the automatic fishing gear identification device has been found to show little physical damage caused by external factors that can occur in underwater environment.BR Concerning the form of the receiver of the automatic fishing gear identification device, not the kit type combined with the buoy and receiver but either the all-in-one type integrated with the buoy and receiver or the bar type attachable to the buoy’s flagpole is ppropriate. Regarding the type of the receiver of the automatic fishing gear identification device fishermen prefer, all the respondents say they prefer the bar-type receiver. It is necessary to complement the underwater transmitter’s material, form, and intensity so that it can absorb the physical impact and friction that may occur in the process of repeating the shooting and hauling of the fishing gear. Also, by reflecting the requirements mentioned above as well as empirical tests on maritime communications connecting fishing boats, the automatic fishing gear identification device installed in the fishing gear, and the control system on land, follow-up field applicability tests will have to be done afterwards.