Hänninen Jari, Weckström Markus, Pawłowska Joanna, Szymańska Natalia, Uurasjärvi Emilia, Zajaczkowski Marek, Hartikainen Samuel, Vuorinen Ilppo
Archipelago Research Institute, Biodiversity Unit, FI-20014, University of Turku, Finland.
Archipelago Research Institute, Biodiversity Unit, FI-20014, University of Turku, Finland.
Mar Pollut Bull. 2021 Apr;165:112150. doi: 10.1016/j.marpolbul.2021.112150. Epub 2021 Feb 20.
Neuston samples were collected with a Manta trawl in the rim of the Arctic Ocean, in the Northern Atlantic Ocean and the Baltic Sea at eleven coastal and open-sea locations. All samples contained plastics identified by FTIR microscopy. Altogether, 110 microplastics pieces were classified according to size, shape, and polymer type. The concentrations at the locations were generally low (x̅ = 0.06, SD ± 0.04 particles m) as compared to previous observations. The highest concentrations were found towards the Arctic Ocean, while those in the Baltic Sea were generally low. The most abundant polymer type was polyethylene. Detected particle types were mainly fragments. The number of films and fibers was very low. The mean particle size was 2.66 mm (SD ± 1.55 mm). Clustering analyses revealed that debris compositions in the sea regions had characteristic differences possibly reflecting the dependences between compositions, drifting distances, sinking rates, and local oceanographic conditions.
在北冰洋边缘、北大西洋和波罗的海的11个沿海和公海地点，使用曼塔拖网采集了漂浮生物样本。所有样本中都含有通过傅里叶变换红外光谱显微镜鉴定出的塑料。总共根据大小、形状和聚合物类型对110片微塑料进行了分类。与之前的观测结果相比，这些地点的浓度普遍较低（x̅ = 0.06，标准差±0.04个颗粒/立方米）。在北冰洋方向发现了最高浓度，而波罗的海的浓度普遍较低。最丰富的聚合物类型是聚乙烯。检测到的颗粒类型主要是碎片。薄膜和纤维的数量非常少。平均颗粒大小为2.66毫米（标准差±1.55毫米）。聚类分析表明，海域中的碎片组成具有特征差异，这可能反映了组成、漂移距离、下沉速率和当地海洋学条件之间的相关性。
