一份关于南极半岛北部眼斑雪冰鱼（Chionodraco rastrospinosus）体内微塑料分布的新报告。
A novel report on the distribution of microplastics in ocellated icefish (Chionodraco rastrospinosus) in the northern Antarctic Peninsula.
作者信息
Geng Qingning, Wang Congcong, Zhu Guoping
机构信息
College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China; Center for Polar Research, Shanghai Ocean University, Shanghai 201306, China.
College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China; Center for Polar Research, Shanghai Ocean University, Shanghai 201306, China; National Engineering Research Center for Oceanic Fisheries, Shanghai 201306, China; Polar Marine Ecosystem Group, The Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Shanghai Ocean University, Ministry of Education, Shanghai 201306, China.
出版信息
Mar Pollut Bull. 2023 Aug;193:115188. doi: 10.1016/j.marpolbul.2023.115188. Epub 2023 Jun 21.
Plastics are ubiquitous in the global marine ecosystem; however, studies on microplastic (MPs) ingestion by fish in the remote Antarctic are extremely limited. We detected MPs in ocellated icefish (Chionodraco rastrospinosus)-a limitedly distributed but ecologically important species-in the northern Antarctic Peninsula. This is the first study reporting MPs distribution in the stomach, intestine, and gill of this species. Of 32 C. rastrospinosus individuals, 10 (31.3 %) individuals ingested MPs. Totally, 157 suspected microplastic particles were detected, and only 10 MPs were finally confirmed from the subsampled 38 highly suspected particles after FTIR detection, with an average of 0.36 particles per individual. The stomach, intestine, and gills of each fish contained 0.06 ± 0.24, 0.16 ± 0.36, and 0.09 ± 0.29 particles, respectively. Fibrous MPs with a diameter of <200 μm were predominant in all tissues, with blue MPs being the most common. Polyester and acrylic acid were the most frequently observed plastic polymers. MPs abundance in C. rastrospinosus was unrelated to biometrics.
塑料在全球海洋生态系统中无处不在；然而，关于偏远南极地区鱼类摄入微塑料（MPs）的研究极其有限。我们在南极半岛北部的小眼冰鱼（Chionodraco rastrospinosus，一种分布有限但具有重要生态意义的物种）体内检测到了微塑料。这是首次报道该物种胃、肠和鳃中微塑料分布情况的研究。在32条小眼冰鱼个体中，有10条（31.3%）摄入了微塑料。总共检测到157个疑似微塑料颗粒，经过傅里叶变换红外光谱（FTIR）检测后，从38个高度疑似颗粒的子样本中最终仅确认了10个微塑料颗粒，平均每条鱼0.36个颗粒。每条鱼的胃、肠和鳃中分别含有0.06±0.24、0.16±0.36和0.09±0.29个颗粒。所有组织中直径<200μm的纤维状微塑料占主导地位，蓝色微塑料最为常见。聚酯和丙烯酸是最常观察到的塑料聚合物。小眼冰鱼体内微塑料的丰度与生物特征无关。
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