Park Byeongyong, Kim Seung-Kyu, Joo Soobin, Kim Ji-Su, Jo Kyungsik, Song Nan-Seon, Im Jibin, Lee Hee-Jee, Kim Sang Wha, Lee Sung Bin, Kim Sunmin, Lee Youngran, Kim Byung-Yeob, Kim Tae Won
Program in Biomedical Science and Engineering, Inha University, Incheon 22212, Republic of Korea; Department of Ocean Sciences, Inha University, Incheon 22212, Republic of Korea.
Department of Marine Science, College of Natural Sciences, Incheon National University, Academy-ro 119, Yeounsu-gu, Incheon 22012, Republic of Korea; Research Institute of Basic Sciences, Incheon National University, Academy-ro 119, Yeonsu-gu, Incheon 22012, Republic of Korea; Yellow Sea Institute, Incheon National University, Academy-ro 119, Yeonsu-gu, Incheon 22012, Republic of Korea.
Mar Pollut Bull. 2023 Apr;189:114734. doi: 10.1016/j.marpolbul.2023.114734. Epub 2023 Feb 25.
Microplastics (MPs) are found in every ocean and are frequently ingested by marine animals. This study analyzed MPs in the stomachs and intestines of 12 large marine animals comprising one fin whale (Balaenoptera physalus), seven finless porpoises (Neophocaena asiaeorientalis), two loggerhead turtles (Caretta caretta), one Indo-Pacific bottlenose dolphin (Tursiops aduncus), and one common dolphin (Delphinus delphis) that were stranded off the Republic of Korea between 2019 and 2021. MPs were detected with a mean abundance of 3.42 ± 3.2 items/g and were predominantly of transparent-white, fragment-shaped polypropylene smaller than 200 μm. The abundance of MPs found did not correlate with the biological information (maturity, body length) of the finless porpoises and there were no significant differences in the abundance of MPs between the stomachs and intestines. These results cannot accurately assess the impact of MPs on large marine animals, so further studies are necessary to understand how MPs can potentially affect them.
微塑料（MPs）在每一片海洋中都有发现，并且经常被海洋动物摄入。本研究分析了2019年至2021年间在大韩民国沿海搁浅的12只大型海洋动物胃和肠道中的微塑料，这些动物包括1头长须鲸（Balaenoptera physalus）、7头江豚（Neophocaena asiaeorientalis）、2头蠵龟（Caretta caretta）、1头印太瓶鼻海豚（Tursiops aduncus）和1头普通海豚（Delphinus delphis）。检测到的微塑料平均丰度为3.42±3.2个/克，主要是小于200微米的透明白色碎片状聚丙烯。发现的微塑料丰度与江豚的生物学信息（成熟度、体长）无关，胃和肠道中的微塑料丰度也没有显著差异。这些结果无法准确评估微塑料对大型海洋动物的影响，因此需要进一步研究以了解微塑料如何可能影响它们。
