트롤 조사에 의한 제주 주변해역에서의 해저 폐기물 조사

다국어 초록 (Multilingual Abstract)

This study analyzed the distribution density in relation to the seabed waste by trawling in around Jeju. Trawl surveys were conducted four times in total from June 28 to June 30, 2023. Through four surveys, a lot of undersea waste was collected from southeast and northwest Jeju. A total of 6 types of undersea waste were collected, including intact trap, ropes, eel fish trap, waste nets, and fishing lines. The water density of 6 types of undersea waste was 42.5 pcs/km². The total weight of the seabed waste was 56.7 kg and the weight density was estimated to be 112.8 kg/km². It showed the largest amount of wastewater and the largest weight. According to the results of the survey, the 224 and 110 seas northeast of Jeju Island, where the trap fishery are mainly carried out, accounted for almost all of intact trap waste, while the 250 and 241 seas southwest of Jeju Island, where gillnets and long line fishing are carried out, collected a large number of general garbage, fishing lines, and waste nets. The types of waste appear to vary depending on the fishing method in the waters around Jeju, and measures such as the real-name fishing gear system and the development of a waste marine treatment system are needed to prevent fishing boats from throw away waste while fishing.