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

• Document type: Journal article
• Source: Science of The Total Environment; v. 938, p. 10-pg., 2024-05-30.

Abstract

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)

• FAPESP's process: 19/08491-0 - Atmospheric particulate material and environmental contamination. Impact assessment in the aquatic biota in an integrated ecophysiotoxicological approach
• Grantee: Marisa Narciso Fernandes
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 22/10154-4 - Bioaccumulation, subcellular partition and biomarkers at different levels of biological organization of aquatic invertebrates exposed to metallic nanoparticles
• Grantee: Caio Rodrigues Nobre
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 22/09868-2 - ATMOSPHERIC PARTICULATE MATERIAL AND ENVIRONMENTAL CONTAMINATION. IMPACT ASSESSMENT IN THE AQUATIC BIOTA IN AN INTEGRATED ECOPHYSIOTOXICOLOGICAL APPROACH
• Grantee: Marina de Souza Paço
• Support Opportunities: Scholarships in Brazil - Technical Training Program - Technical Training