摘要

由于它们的生态和生物后果，海洋垃圾中的海洋垃圾负荷是一个突发问题。 本研究涉及微观弹性量化和形态描述，以测试沿着沿岸浅层沉积物的人为梯度的空间差异，并进一步评估在给定的沉积物颗粒部分中微塑性物质的优先沉积。 来自海洋保护区（MPA）的沉积物含有最高的微塑料（MP）浓度：高达0.90±0.10 MP / g，这表明从源区到终点区的微塑料转移。 另外，在居民区附近发现高比例的微弹性细丝，而在MPA中更常见碎片型微塑料。 尽管微塑性材料总是存在两种粒度分数：2mm> x> 1mm和1mm> x> 0.5mm，但沉积物中的沉积物粒度和微粒沉积之间没有明显的趋势。

Marine litter loads in sea compartments are an emergent issue due to their ecological and biological consequences. This study addresses microplastic quantification and morphological description to test spatial differences along an anthropogenic gradient of coastal shallow sediments and further on to evaluate the preferential deposition of microplastics in a given sediment grain fraction. Sediments from Marine Protected Areas (MPAs) contained the highest concentrations of microplastics (MPs): up to 0.90 ± 0.10 MPs/g suggesting the transfer of microplastics from source areas to endpoint areas. In addition, a high proportion of microplastic filaments were found close to populated areas whereas fragment type microplastics were more common in MPAs. There was no clear trend between sediment grain size and microplastic deposition in sediments, although microplastics were always present in two grain size fractions: 2 mm > x > 1 mm and 1 mm > x 0.5 mm.

https://www.sciencedirect.com/science/article/pii/S0141113616300058