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Size and concentration effects of microplastics on digestion and immunity of hybrid snakehead in developmental stages

Aquaculture Reports 2021 46 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 50 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Chaonan Zhang, Shaodan Wang, Shaodan Wang, Shaodan Wang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Zhengkun Pan, Shaodan Wang, Shaodan Wang, Shaodan Wang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Shaodan Wang, Chaonan Zhang, Chaonan Zhang, Shaodan Wang, Chaonan Zhang, Chaonan Zhang, Shaodan Wang, Zhengkun Pan, Shaodan Wang, Chaonan Zhang, Shaodan Wang, Shaodan Wang, Zhengkun Pan, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Chaonan Zhang, Shaodan Wang, Shaodan Wang, Shaodan Wang, Zhengkun Pan, Zhengkun Pan, Chaonan Zhang, Shaodan Wang, Shaodan Wang, Shaodan Wang, Zhengkun Pan, Shaodan Wang, Chaonan Zhang, Zhengkun Pan, Jixing Zou Shaodan Wang, Guohuan Xu, Shaodan Wang, Zhengkun Pan, Shaodan Wang, Jixing Zou Zhengkun Pan, Chaonan Zhang, Chaonan Zhang, Shaodan Wang, Jixing Zou Chaonan Zhang, Chaonan Zhang, Jixing Zou Jixing Zou Zhengkun Pan, Guohuan Xu, Guohuan Xu, Chaonan Zhang, Jixing Zou Shaodan Wang, Chaonan Zhang, Jixing Zou Jixing Zou Jixing Zou Guohuan Xu, Guohuan Xu, Jixing Zou Jixing Zou Shaodan Wang, Jixing Zou Jixing Zou Jixing Zou Jixing Zou Jixing Zou Shaodan Wang, Jixing Zou Guohuan Xu, Guohuan Xu, Guohuan Xu, Guohuan Xu, Jixing Zou Jixing Zou Jixing Zou Jixing Zou Guohuan Xu, Jixing Zou Jixing Zou Jixing Zou Guohuan Xu, Jixing Zou Jixing Zou Guohuan Xu, Jixing Zou

Summary

Researchers examined how microplastic size and concentration affect digestion and immunity in hybrid snakehead fish at different developmental stages, finding that larvae were more sensitive to small, high-concentration microplastics while juveniles mounted immune and antioxidant defense responses.

Body Systems

Immune

Microplastics pollution has gained much attention for its harmful impact on aquatic organisms. This study aimed to evaluate the size-effects and concentration-effects of microplastics on the physiology of hybrid snakehead (Channa maculate × Channa argus). Parameters including antioxidant enzyme activities, intestinal morphology, immune-related genes, and oxidative-stress-related genes were tested in two life stages development. The results showed hybrid snakehead larvae (0.057 ± 0.009 g in weight) were more intolerant to high concentrations of small-sized microplastics. Hybrid snakehead juvenile (3.87 ± 1.19 g in weight) had been stimulated the immune response and triggered antioxidant defenses under the exposure stress. There were differential expressions of inflammatory and oxidative-stress-related genes coping with differential sizes and concentrations of microplastics. High concentrations of microplastics (2 mg/L, 20 mg/L) stimulated more severe immune response and shortened intestinal villi. In addition, the damaged intestinal morphology and function did not recover after 48 h of depuration. This work is expected to provide a meaningful perspective for better understanding the size and concentration dependent effects and life-stage specific effects of microplastics in hybrid snakehead.

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