PDF(Pubmed)
Abstract：
Plastic pollution is a global concern that has a significant impact on marine life. Plastic is widely used and has become a pervasive pollutant in marine environments. Plastic contamination has been documented both in marine environments and biota. Plastic contamination in cetacean gastro-intestinal tract (GIT) content has received limited attention, especially in the Black Sea. This study aims to investigate plastic contamination in the GITs of bottlenose dolphins and harbour porpoises, introducing a novel methodology. Given the limited exploration of this issue in the Black Sea, the research predominantly focuses on microplastic contamination. The GITs were sampled through necropsy from stranded and by-caught cetaceans, and content was washed through a multi-sieves tool. The material retained on each sieve was analysed following specific protocols. All (100%) of the GITs contained plastics (meso- and microplastics). In total, 1059 items (fibres, fragments, and beads) ranging from 22.86 µm to 5776 µm were found, suggesting a high contamination level in the Black Sea cetaceans. Future efforts should concentrate on increasing the number of samples and using the results for the implementation of the Marine Strategy Framework Directive (MSFD).
摘要：
塑料污染是全球关注的问题，对海洋生物产生重大影响。塑料被广泛使用，并已成为海洋环境中普遍存在的污染物。已经记录了海洋环境和生物群中的塑料污染。鲸目动物胃肠道（GIT）中的塑料污染含量受到了有限的关注，尤其是在黑海。这项研究旨在调查宽吻海豚和海豚的GIT中的塑料污染，介绍一种新的方法论。鉴于黑海对这个问题的探索有限，这项研究主要集中在微塑料污染上。GIT是通过尸检从搁浅和被捕获的鲸目动物中采样的，内容物通过多筛工具洗涤。根据具体方案分析保留在每个筛上的材料。所有（100％）的GIT都含有塑料（中观和微塑料）。总的来说,1059项(纤维，碎片,和珠子)范围从22.86微米到5776微米，表明黑海鲸目动物的污染水平很高。未来的努力应集中在增加样本数量上，并将结果用于实施《海洋战略框架指令》（MSFD）。
