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트롤조사에 의한 제주도 북동 인근 해역의 해저 폐기물 조사
김형민(Hyeong-Min KIM),유민호(Min-Ho YOU),강진아(Ji-Na GANG),김대진(Dae-Jin KIM),신형호(Hyeong-Ho SHIN) 전남대학교 어업기술연구소 2018 어업기술연구소보고지 Vol.11 No.1
This study analyzed distribution density in relation with sea-bed waste of the sea of north-eastern Jeju island by bottom trawl of 7 times for four days in April, June, October and November 2017. On the survey for four days many sea-bed wastes were collected at the sea of Jeju north-eastern fishing grounds. The kinds of collected sea-bed waste were the fish traps, the waste nets, the wire lines, the long lines, woods, plastics and so on. Distribution density in relation with sea-bed waste of the survey area was 109.8-596kg/km², and which proportion of the kinds on total sea-bed waste were that the fish trap was 66% (288 fish trap of 1011.6kg), the waste rope was 21%, the fishing line was 5.8%, the waste net was 1.9% and the others was 4.8%. According to the broken degree the serious broken fish trap were 101 (35%) and the intact fish trap were 187 (65%). As a result of survey of sea-bed waste in the Jeju north-eastern fishing grounds were polluted by the sea-bed waste and we need continuous monitoring to get rid of this environment pollution.