SINTEF Nord, Storgata 118, 9008 Tromsø, Norway.
SINTEF Nord, Storgata 118, 9008 Tromsø, Norway.
Mar Pollut Bull. 2022 Jun;179:113711. doi: 10.1016/j.marpolbul.2022.113711. Epub 2022 May 6.
Wear and tear on fishing gear is a sparsely investigated source of microplastic pollution in the sea. In Norway, Danish seine ropes and trawls are the fishing gears that contribute most to this pollution. The main reason for this pollution is that the seine ropes are dragged along the seabed over a considerable distance, creating a friction force that results in high ropes wear. This note reports the findings after examining the wear of Danish seine ropes used in Norwegian fisheries. The results show that, in Norway alone, an average of 77 to 97 tons of plastic will be added to the sea annually due to this specific fishing gear. Aggregated to include all fly dragging, anchor seining, and pair seining globally, this number is estimated to be about 311 tons per year.
渔具的磨损是海洋中微塑料污染的一个研究较少的来源。在挪威，丹麦围网绳索和拖网是造成这种污染的主要渔具。造成这种污染的主要原因是，这些围网绳索被拖曳在海底相当长的一段距离上，产生了很大的摩擦力，导致绳索磨损严重。本说明报告了对在挪威渔业中使用的丹麦围网绳索磨损情况进行检查后的结果。结果表明，仅在挪威，由于这种特定的渔具，每年将有平均 77 至 97 吨塑料被添加到海洋中。如果将所有的曳绳捕捞、锚网捕捞和对网捕捞都包括在内，全球每年的这一数字估计约为 311 吨。
