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Species-Specific Effects of Microplastics On Juvenile Fishes

Research Square (Research Square) 2021 Score: 35 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Chaonan Zhang, Zhengkun Pan, Zhiheng Zuo, Shaodan Wang, Shaodan Wang, Shaodan Wang, Chaonan Zhang, Qiujie Wang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Zhiheng Zuo, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Shaodan Wang, Shaodan Wang, Shaodan Wang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Shaodan Wang, Shaodan Wang, Chaonan Zhang, Qiujie Wang, Qiujie Wang, Qiujie Wang, Chaonan Zhang, Zhiheng Zuo, Zhiheng Zuo, Chaonan Zhang, Qiujie Wang, Shaodan Wang, Shaodan Wang, Shaodan Wang, Zhiheng Zuo, Zhiheng Zuo, Zhengkun Pan, Shaodan Wang, Chaonan Zhang, Chaonan Zhang, Shaodan Wang, Shaodan Wang, Zhiheng Zuo, Zhiheng Zuo, Chaonan Zhang, Shaodan Wang, Shaodan Wang, Zhengkun Pan, Zhiheng Zuo, Zhiheng Zuo, Qiujie Wang, Qiujie Wang, Zhengkun Pan, Shaodan Wang, Shaodan Wang, Zhengkun Pan, Chaonan Zhang, Zhengkun Pan, Jixing Zou Jixing Zou Qiujie Wang, Chaonan Zhang, Chaonan Zhang, Shaodan Wang, Shaodan Wang, Zhengkun Pan, Zhengkun Pan, Zhengkun Pan, Shaodan Wang, Shaodan Wang, Shaodan Wang, Jixing Zou Shaodan Wang, Jixing Zou Zhengkun Pan, Chaonan Zhang, Zhiheng Zuo, Chaonan Zhang, Jixing Zou Jixing Zou Zhiheng Zuo, Jixing Zou Xu Guohuan, Jixing Zou Jixing Zou Jixing Zou Qiujie Wang, Xu Guohuan, Jixing Zou Jixing Zou Jixing Zou Jixing Zou Jixing Zou Xu Guohuan, Jixing Zou Jixing Zou Xu Guohuan, Shaodan Wang, Shaodan Wang, Jixing Zou Xu Guohuan, Jixing Zou Jixing Zou Jixing Zou Jixing Zou Xu Guohuan, Jixing Zou Jixing Zou Jixing Zou Jixing Zou Jixing Zou

Summary

This study found that polystyrene microplastics cause intestinal inflammation and tissue damage in three fish species with different feeding habits, with effects varying by fish diet type, plastic size, and exposure duration. The findings show that microplastic-induced gut harm in fish is species-specific, complicating risk assessments for wild fish populations.

Polymers

Body Systems

Digestive Immune

Models

Fish other

Abstract Microplastics contamination have been extensively reported in aquatic ecosystem and organisms. It is wildly acknowledged that the ingestion, accumulation and elimination of microplastics in fishes are species-specific, which mainly depending on the feeding behavior. This study aims to investigate the effects of microplastics on the morphology and inflammatory response in intestines of fishes with different feeding types. Largemouth bass (carnivorous fish), grass carp (herbivorous fish) and Jian carp (omnivorous fish) were used as organism model. The contributing concentration and size of microplastics are explored as well as the response time and legacy effect in fishes. Two different sizes of polystyrene microplastics (8 μm and 80 nm) were set at three concentrations. And samples were analyzed at different exposure times and depuration times. Histological analysis indicated that multiple abnormalities in intestines are presented in three species fishes after acute exposure microplastics. The mRNA abundance of immune-related genes in the intestine tissues of fishes were significantly induced or restrained. There were differential expressions of genes coping with differential sizes and concentrations of microplastics exposure in different fishes. The reason for the difference effects of microplastics on fishes was still unclear but could be due to the difference in the structure and function of the digestive system. These results provide a theoretical basis to further analysis of the mechanism of fish intestinal pathology caused by microplastics.

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