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Oxidative effects of consuming microplastics in different tissues of white shrimp Litopenaeus vannamei

2023; Elsevier BV; Volume: 193; Linguagem: Inglês

10.1016/j.marpolbul.2023.115137

1879-3363

Andressa Suanes Seta, Larissa Müller, Ronan Adler Tavella, Flávio Manoel Rodrigues da Silva Júnior, Virgínia Fonseca Pedrosa, Luís Alberto Romano, Wilson Wasielesky, Marcelo Estrella Josende, Juliane Ventura‐Lima,

Nanoparticles: synthesis and applications

In this study, we evaluated the effect of microplastic (MP, polystyrene, 1.1 μm) exposure through diet at two different levels (40 and 400 μg MP/kg of ration) in the shrimp Litopenaeus vannamei for seven days. After the exposure period, oxidative stress parameters, histological alterations, and MP accumulation in different shrimp tissues (gut, gills, hepatopancreas, and muscle) were also evaluated. The results showed that MP was detected in the gills, muscles, and hepatopancreas. In addition, in the gut, gills, and hepatopancreas, disruption in redox cells was observed. Also, lipid and DNA damage was evident in the hepatopancreas. Histopathological analysis revealed edema in the intestine, hepatopancreas, and in the muscle. Granuloma formation with infiltrated hemocytes occurred in the intestine and hepatopancreas. These results show that MP exposure can affect the health and welfare of L. vannamei and may also affect the final consumers once MP is accumulated.