Department of Fisheries Technology, Patuakhali Science and Technology University, Dumki, Patuakhali 8602, Bangladesh.
Department of Fisheries Technology, Patuakhali Science and Technology University, Dumki, Patuakhali 8602, Bangladesh.
Mar Pollut Bull. 2024 Nov;208:117020. doi: 10.1016/j.marpolbul.2024.117020. Epub 2024 Sep 24.
The study aimed to assess and characterize microplastics (MPs) in muscles, guts, and gills of six commercially important marine fish from the Bay of Bengal. FTIR was utilized to identify MP's polymer compositions. A total 7085 MPs identified, where tuna exhibited the highest count and Bombay duck had the lowest. MPs abundance (MPs/g) was ranged from 1.56 ± 0.39 to 7.16 ± 1.36 in muscles, 1.91 ± 0.32 to 4.46 ± 0.75 in guts, and 2.36 ± 0.24 to 6.53 ± 1.58 in gills. The predominant MPs were 1-5 mm size (33.33-62.78 %), white/transparent color (18.45-54.63 %), filament shapes (75.00-94.71), and fiber types (73.21-94.71 %). FTIR revealed MPs 58.89 % polyethylene, 21.67 % polypropylene, 17.22 % polyester, and 2.22 % non-plastic compositions. Cluster analysis grouped two species with 50 % similarity, while PCA indicated significant variations among principal components (14-69.4 %) highlighting the dominance of fiber, particles, and 0.5-1.0 mm MPs in the fish tissues. The prevalence of MPs in seafood underscores measures to safeguard both the marine ecosystem and human health.
本研究旨在评估和描述孟加拉湾六种商业上重要的海洋鱼类肌肉、内脏和鳃中的微塑料（MPs）。傅里叶变换红外光谱（FTIR）用于鉴定 MP 的聚合物组成。共鉴定出 7085 个 MPs，其中金枪鱼的 MPs 数量最高，而斑鰶的 MPs 数量最低。MPs 丰度（MPs/g）在肌肉中范围为 1.56±0.39 至 7.16±1.36，在内脏中范围为 1.91±0.32 至 4.46±0.75，在鳃中范围为 2.36±0.24 至 6.53±1.58。主要的 MPs 尺寸为 1-5mm（33.33-62.78%），颜色为白色/透明（18.45-54.63%），形状为丝状（75.00-94.71%），类型为纤维（73.21-94.71%）。FTIR 显示 MPs 中 58.89%为聚乙烯，21.67%为聚丙烯，17.22%为聚酯，2.22%为非塑料成分。聚类分析将两个相似度为 50%的物种分为一组，而主成分分析（PCA）表明主要成分之间存在显著差异（14-69.4%），突出了纤维、颗粒和 0.5-1.0mm MPs 在鱼类组织中的优势地位。海鲜中 MPs 的存在强调了采取措施保护海洋生态系统和人类健康的必要性。
