Systemic effects of settleable atmospheric particulate matter (SePM) on swamp ghost crab Ucides cordatus

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Nobre, Caio Rodrigues ; Paco, Marina de Souza ; Duarte, Luis Felipe de Almeida ; Ortega, Andressa dos Santos Barbosa ; Moreno, Beatriz Barbosa ; de Camargo, Thiago Felicissimo Turibio ; Parreira, Leticia Malvestio ; Souza, Iara da Costa ; Monferr, Magdalena Victoria ; Wunderlin, Daniel Alberto ; Fernandes, Marisa Narciso ; Pereira, Camilo Dias Seabra

• Tipo de documento: Artigo Científico
• Fonte: Science of The Total Environment; v. 938, p. 10-pg., 2024-05-30.

Resumo

Metallurgical activities are a significant source of settleable atmospheric particulate matter (SePM). The material is exposed to wind action, leading to its deposition throughout terrestrial and aquatic ecosystems, thus promoting contamination by metals and metalloids. However, knowledge of the impacts on biota is scarce. In aquatic coastal zones, evaluating hemolymph in invertebrates makes it possible to have insights into the pre -pathogenic effects and health status of organisms. Our study aimed to evaluate bioaccumulation and the sublethal effects of SePM on the mangrove crab Ucides cordatus by assessing biomarkers of cito-genotoxicity in the hemolymph. Organisms underwent a 30 -day experiment with four treatments: control; 0.01 g.L -1 , 0.1 g.L -1 , 1 g.L -1 of SePM, with hemolymph sampled at 2, 7, 15, and 30 days of exposure to assess lipid peroxidation (LPO), DNA damage (strand break), cholinesterase (ChE) and lysosomal membrane stability (LMS). The results revealed metals' bioaccumulation in soft tissues (Al, Fe + , Fe ++ , Cu, Zr, Nb) and dose -time -dependent responses for LPO, DNA strand break, ChE, and LMS. Significant correlation was found between LPO and Cu (tissue), reduced LMS and Al and Fe (tissue), and Cu, Zn, Ag, and Bi in water. Hemolymph was related to the toxicokinetic and toxicodynamic of metals and metalloids from SePM in Ucides cordatus . New toxicological evidence was obtained to shed light on the impacts of SePM on the ecological status of coastal zones. (AU)

• Processo FAPESP: 19/08491-0 - Material particulado atmosférico e contaminação ambiental. Avaliação do impacto na biota aquática em uma abordagem ecofisiotoxicológica integrada
• Beneficiário: Marisa Narciso Fernandes
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 22/10154-4 - Bioacumulação, partição subcelular e biomarcadores em diferentes níveis de organização biológicas de invertebrados aquáticos expostos a nanopartículas metálicas
• Beneficiário: Caio Rodrigues Nobre
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 22/09868-2 - Material particulado atmosférico e contaminação ambiental. avaliação do impacto na biota aquática em uma abordagem ecofisiotoxicológica integrada
• Beneficiário: Marina de Souza Paço
• Modalidade de apoio: Bolsas no Brasil - Programa Capacitação - Treinamento Técnico