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Microplastics in fish species from the eastern Guangdong: Implications to Indo-Pacific humpback dolphin (Sousa chinensis) and human health

Marine Environmental Research 2024 4 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Ping Li, Puhui Zhao, Jinyan Liu, Puhui Zhao, Jinyan Liu, Puhui Zhao, Ran Bi Yingping Fan, Jinyan Liu, Jinyan Liu, Jinyan Liu, Jinyan Liu, Qilin Gutang, Qilin Gutang, Yingping Fan, Puhui Zhao, Qilin Gutang, Qilin Gutang, Yingping Fan, Ping Li, Yingping Fan, Ran Bi Wenhua Liu, Ran Bi Wenhua Liu, Wenhua Liu, Puhui Zhao, Puhui Zhao, Puhui Zhao, Ran Bi Ran Bi Wenhua Liu, Puhui Zhao, Puhui Zhao, Puhui Zhao, Jinyan Liu, Jinyan Liu, Wenhua Liu, Wenhua Liu, Wenhua Liu, Keqin Zhang, Yingping Fan, Zewei Sun, Yingping Fan, Zewei Sun, Wenhua Liu, Jinyan Liu, Jinyan Liu, Zewei Sun, Zewei Sun, Ping Li, Wenhua Liu, Ping Li, Wenhua Liu, Ping Li, Jianxin Wang, Yingping Fan, Yingping Fan, Ran Bi Wenhua Liu, Ping Li, Ran Bi

Summary

Researchers examined microplastic contamination in 15 fish species from eastern Guangdong, China, including 11 species that are prey for endangered Indo-Pacific humpback dolphins. They found the highest microplastic levels in fish digestive tracts, with pelagic species being most affected, and identified ethylene vinyl acetate and polyethylene as the dominant plastic types. The study raises concerns about microplastic transfer through the food web to both dolphins and humans who consume these fish.

Polymers

Body Systems

Digestive

Microplastic (MP) pollution is widespread in aquatic environments, accumulating in organisms and transferring through the food web. This study investigated MP abundance, composition, and distribution in 15 fish species from eastern Guangdong, 11 of which are prey for Indo-Pacific humpback dolphins (Sousa chinensis). Results indicated the highest MP abundance in fish gastrointestinal tracts, with pelagic species being the most affected. Ethylene vinyl acetate (EVA) and polyethylene (PE), linked to local industrial activities, were the most prevalent polymers. Risk quotients (RQ) at 95th percentile for Indo-Pacific humpback dolphins exceeded one, suggesting significant MP exposure risk via prey ingestion. In contrast, the MPs risk for humans through fish consumption was minimal. These findings underscore the urgent need for improved plastic waste management to protect marine apex predators.

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