College of Ocean Sciences, Jeju National University, Jeju 63243, Republic of Korea.
College of Ocean Sciences, Jeju National University, Jeju 63243, Republic of Korea.
Mar Pollut Bull. 2022 Sep;182:113942. doi: 10.1016/j.marpolbul.2022.113942. Epub 2022 Jul 20.
Seafloor litter sources, distribution and density were assessed in a bottom trawl survey of the South Sea around Jeju Island by the Ara-ho training ship of Jeju National University. Samples were taken from 14 transects at a depth range of 60-120 m in areas with sandy and muddy substratum. Generally, mean densities varied from 26.9 items/km to 62.4 items/km and 104.8 kg/km to 370.9 kg/km. Mean densities of total litter sampled was 46.3 items/km and 228.6 kg/km. Derelict gears were the most common litter items (92 % of total litter) with mean densities of 44.3 items/km and 228.1 kg/km. Gillnets and traps were the most derelict with densities reaching 4.9 items/km and 99.2 kg/km and 25.0 items/km and 89.1 kg/km respectively. The results of this study indicate that significant level of pollution in the South Sea are generated from commercial fishing activities and gillnets and traps being high risk derelict gears.
济州国立大学 Ara-ho 培训船在济州岛周围南海进行底拖网调查，评估了海底垃圾的来源、分布和密度。在沙质和泥质底质的区域，从水深 60-120 米的 14 个横截线上采集了样本。一般来说，平均密度从 26.9 个/公里到 62.4 个/公里，104.8 公斤/公里到 370.9 公斤/公里不等。总垃圾的平均密度为 46.3 个/公里和 228.6 公斤/公里。废弃渔具是最常见的垃圾（占总垃圾的 92%），平均密度为 44.3 个/公里和 228.1 公斤/公里。刺网和陷阱是最危险的废弃渔具，密度分别达到 4.9 个/公里和 99.2 公斤/公里以及 25.0 个/公里和 89.1 公斤/公里。本研究结果表明，商业捕捞活动和刺网、陷阱等渔具产生了大量的南海污染，是高风险的废弃渔具。
