Microplastic contamination in the freshwater shrimp Macrobrachium amazonicum in Itacoatiara, Amazonas, Brazil

Autor(es)

Guimaraes, Gabriel dos Anjos ; de Moraes, Beatriz Rocha ; Ando, Romulo Augusto ; Sant'Anna, Bruno Sampaio ; Perotti, Gustavo Frigi ; Hattori, Gustavo Yomar

• Tipo de documento: Artigo Científico
• Fonte: ENVIRONMENTAL MONITORING AND ASSESSMENT; v. 195, n. 3, p. 17-pg., 2023-03-01.

Resumo

The present study analyzed the presence of microplastics (MPs) in the shrimp Macrobrachium amazonicum, which is an economically important food that is consumed in several regions of the Brazilian Amazon. A total of 600 specimens of M. amazonicum were captured at two sampling sites (urban and rural area). A total of 2597 MP particles were recorded in the shrimps, with a significant difference between the two sites. The presence of MPs in the body parts also differed significantly. No significant difference was found between MPs abundance and sex of the shrimps. The size of the MPs did not differ significantly between the collection sites and between the body parts. Dark blue fiber-type MPs were the most abundant. A positive correlation was observed between the abundance of MPs and the total weight of shrimps. Raman spectroscopy identified the dark blue fibers as polypropylene and the FTIR technique identified the light blue fragments as nylon. The results indicate that the presence of MPs in the M. amazonicum shrimp is associated with the capture sites near the urban area and is present in the diet of the Amazonian population that regularly consumes this crustacean in traditional dishes. (AU)

• Processo FAPESP: 16/21070-5 - Espectroscopia vibracional com resolução espacial
• Beneficiário: Mauro Carlos Costa Ribeiro
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 20/09250-3 - Ligações de Hidrogênio em Líquidos Iônicos - Espectroscopia Vibracional e Propriedades Físicas
• Beneficiário: Beatriz Rocha de Moraes
• Modalidade de apoio: Bolsas no Brasil - Doutorado