Microplastics Prevalence in Different Cetaceans Stranded along the Western Taiwan Strait

Microplastics (MPs) pollution is of global concern, which poses serious threats to various marine organisms, including many threatened apex predators. In this study, MPs were investigated from nine cetaceans of four different species, comprising one common dolphin (<i>Delphinus delphis</i&g...

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Main Authors: Reyilamu Aierken, Yuke Zhang, Qianhui Zeng, Liming Yong, Jincheng Qu, Haoran Tong, Xianyan Wang, Liyuan Zhao
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/14/4/641
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author Reyilamu Aierken
Yuke Zhang
Qianhui Zeng
Liming Yong
Jincheng Qu
Haoran Tong
Xianyan Wang
Liyuan Zhao
author_facet Reyilamu Aierken
Yuke Zhang
Qianhui Zeng
Liming Yong
Jincheng Qu
Haoran Tong
Xianyan Wang
Liyuan Zhao
author_sort Reyilamu Aierken
collection DOAJ
description Microplastics (MPs) pollution is of global concern, which poses serious threats to various marine organisms, including many threatened apex predators. In this study, MPs were investigated from nine cetaceans of four different species, comprising one common dolphin (<i>Delphinus delphis</i>), two pygmy sperm whales (<i>Kogia breviceps</i>), one ginkgo-toothed beaked whale (<i>Mesoplodon ginkgodens</i>), and five Indo-Pacific humpback dolphins (<i>Sousa chinensis</i>) stranded along the western coast of the Taiwan Strait from the East China Sea based on Fourier transform infrared (FTIR) spectroscopy analysis. Mean abundances of 778 identified MPs items were 86.44 ± 12.22 items individual<sup>−1</sup> and 0.43 ± 0.19 items g<sup>−1</sup> wet weight of intestine contents, which were found predominantly to be transparent, fiber-shaped polyethylene terephthalate (PET) items usually between 0.5 and 5 mm. The abundance of MPs was found at a slightly higher level and significantly correlated with intestine contents mass (<i>p</i> = 0.0004*). The MPs source was mainly likely from synthetic fibers-laden sewage discharged from intense textile industries. Our report represents the first study of MPs in pelagic and deep-diving cetaceans in China, which not only adds baseline data on MPs for cetaceans in Asian waters but also highlights the further risk assessment of MPs consumption in these threatened species.
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spelling doaj.art-15602ab846e44fb2975a8dae962027bb2024-02-23T15:04:54ZengMDPI AGAnimals2076-26152024-02-0114464110.3390/ani14040641Microplastics Prevalence in Different Cetaceans Stranded along the Western Taiwan StraitReyilamu Aierken0Yuke Zhang1Qianhui Zeng2Liming Yong3Jincheng Qu4Haoran Tong5Xianyan Wang6Liyuan Zhao7Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, ChinaThird Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, ChinaThird Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, ChinaThird Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, ChinaThird Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, ChinaMuseum of Biology, Xiamen University, Xiamen 361005, ChinaThird Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, ChinaThird Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, ChinaMicroplastics (MPs) pollution is of global concern, which poses serious threats to various marine organisms, including many threatened apex predators. In this study, MPs were investigated from nine cetaceans of four different species, comprising one common dolphin (<i>Delphinus delphis</i>), two pygmy sperm whales (<i>Kogia breviceps</i>), one ginkgo-toothed beaked whale (<i>Mesoplodon ginkgodens</i>), and five Indo-Pacific humpback dolphins (<i>Sousa chinensis</i>) stranded along the western coast of the Taiwan Strait from the East China Sea based on Fourier transform infrared (FTIR) spectroscopy analysis. Mean abundances of 778 identified MPs items were 86.44 ± 12.22 items individual<sup>−1</sup> and 0.43 ± 0.19 items g<sup>−1</sup> wet weight of intestine contents, which were found predominantly to be transparent, fiber-shaped polyethylene terephthalate (PET) items usually between 0.5 and 5 mm. The abundance of MPs was found at a slightly higher level and significantly correlated with intestine contents mass (<i>p</i> = 0.0004*). The MPs source was mainly likely from synthetic fibers-laden sewage discharged from intense textile industries. Our report represents the first study of MPs in pelagic and deep-diving cetaceans in China, which not only adds baseline data on MPs for cetaceans in Asian waters but also highlights the further risk assessment of MPs consumption in these threatened species.https://www.mdpi.com/2076-2615/14/4/641microplasticscetaceanintestineTaiwan StraitEast China Seaapex predators
spellingShingle Reyilamu Aierken
Yuke Zhang
Qianhui Zeng
Liming Yong
Jincheng Qu
Haoran Tong
Xianyan Wang
Liyuan Zhao
Microplastics Prevalence in Different Cetaceans Stranded along the Western Taiwan Strait
Animals
microplastics
cetacean
intestine
Taiwan Strait
East China Sea
apex predators
title Microplastics Prevalence in Different Cetaceans Stranded along the Western Taiwan Strait
title_full Microplastics Prevalence in Different Cetaceans Stranded along the Western Taiwan Strait
title_fullStr Microplastics Prevalence in Different Cetaceans Stranded along the Western Taiwan Strait
title_full_unstemmed Microplastics Prevalence in Different Cetaceans Stranded along the Western Taiwan Strait
title_short Microplastics Prevalence in Different Cetaceans Stranded along the Western Taiwan Strait
title_sort microplastics prevalence in different cetaceans stranded along the western taiwan strait
topic microplastics
cetacean
intestine
Taiwan Strait
East China Sea
apex predators
url https://www.mdpi.com/2076-2615/14/4/641
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