Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Environmental Sources Marine & Wildlife Sign in to save

Factors affecting microplastic accumulation by wild fish: A case study in the Nandu River, South China

The Science of The Total Environment 2022 86 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 60 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Yuling Chen, Yuling Chen, Xiong Xiong, Xiong Xiong, Xiong Xiong, Xiong Xiong, Xiong Xiong, Chenxi Wu Chenxi Wu Chenxi Wu Xiong Xiong, Yuling Chen, Yuling Chen, Yuling Chen, Yuling Chen, Xiong Xiong, Xiong Xiong, Xiong Xiong, Xiong Xiong, Xiong Xiong, Xiong Xiong, Chenxi Wu Chenxi Wu Chenxi Wu Zhixin Shen, Xiong Xiong, Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Xiong Xiong, Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Xiong Xiong, Chenxi Wu Chenxi Wu Xiong Xiong, Xiong Xiong, Xiong Xiong, Xiong Xiong, Xiong Xiong, Xiong Xiong, Xiong Xiong, Xiong Xiong, Xiong Xiong, Xiong Xiong, Xiong Xiong, Kehuan Wang, Gaojun Li, Xiong Xiong, Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Kehuan Wang, Xiong Xiong, Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Xiong Xiong, Chenxi Wu Chenxi Wu Xiong Xiong, Xiong Xiong, Xiong Xiong, Xiong Xiong, Chenxi Wu Chenxi Wu Xiong Xiong, Xingwei Cai, Chenxi Wu Chenxi Wu Chenxi Wu Kehuan Wang, Xiong Xiong, Chenxi Wu Xiong Xiong, Chenxi Wu Chenxi Wu Chenxi Wu Xiong Xiong, Xiong Xiong, Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Xiong Xiong, Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu

Summary

Researchers examined microplastic accumulation in 179 wild fish across 27 species in the Nandu River in southern China, finding microplastics in over 90% of fish sampled. Surprisingly, factors like fish size, feeding habits, and habitat did not significantly affect how much microplastic fish accumulated, suggesting that intake may be largely random. The study highlights that smaller fish face proportionally higher microplastic exposure relative to their body weight and may be more vulnerable to harmful effects.

Body Systems

Digestive

Study Type Environmental

Quantifying microplastic accumulation in aquatic organisms is important for risk assessments in natural habitats. However, studies on the factors influencing microplastic accumulation by fish, particularly in natural water bodies, remain limited. In this study, we monitored the microplastic pollution characteristics in the fish digestive tract and surface water of the Nandu River, the largest river in Hainan, China. Among the 179 fish examined, microplastics were detected in 90.5 %, covering 27 fish species. Moreover, low abundance of microplastics occurred among the different fish, with an average of 3.20 ± 2.60 particles per fish. Fibrous microplastics with a large size (>500 μm) were dominant in both the water column and fish. In this study, fish size, feeding habits, and living habitats did not affect microplastic abundance in fish. Based on the analysis of differences in the abundance and morphological characteristics of microplastics in water column and fish, we suggested that the random intake and differential excretion of microplastics with different characteristics by fish might lead to the homogeneity of microplastic accumulation in different fish. Our study suggest that more attention should be given to the negative effects of microplastics on small fish owing to the higher microplastic exposure per gram weight, and further improvement in microplastic risk assessment methods is required.

Read via DOI PubMed

Share this paper

Post Share Share Pin Email