Ingestion and depuration of polyester microfibers by Crassostrea gasar (Adanson, 1757).

Autor: Lins LRDRT; Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88034-257, Brazil., Saldaña-Serrano M; Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88034-257, Brazil., Gomes CHAM; Laboratory of Marine Mollusks-LMM, Department of Aquaculture, Center of Agricultural Science, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88040900, Brazil., Pilotto MR; Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88034-257, Brazil., Vilas Bôas LOB; Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88034-257, Brazil., Costa DMD; Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88034-257, Brazil., Bastolla CLV; Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88034-257, Brazil., Lima D; Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88034-257, Brazil., Tedesco M; Aquatic Organisms Health Laboratory-AQUOS, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88037-000, Brazil., Ferreira TH; Aquatic Organisms Health Laboratory-AQUOS, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88037-000, Brazil., Lunelli PS; Graduate Program in Materials Science and Engineering-PGMAT, Laboratory of Glass-Ceramic Materials-VITROCER, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88040-900, Brazil., Novaes de Oliveira AP; Graduate Program in Materials Science and Engineering-PGMAT, Laboratory of Glass-Ceramic Materials-VITROCER, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88040-900, Brazil., Bainy ACD; Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88034-257, Brazil., Nogueira DJ; Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88034-257, Brazil. Electronic address: nogueira.diegoj@gmail.com.
Jazyk: angličtina
Zdroj: Marine environmental research [Mar Environ Res] 2024 Apr; Vol. 196, pp. 106433. Date of Electronic Publication: 2024 Mar 04.
DOI: 10.1016/j.marenvres.2024.106433
Abstrakt: The study aimed to obtain environmentally relevant microfibers (MFs) from polyester fabric and assess their impact on the oyster Crassostrea gasar. MFs were obtained by grinding the fabric, and their accumulation in oysters gills and digestive glands was analyzed after exposure to 0.5 mg/L for 2 and 24 h. Additionally, a 48 h depuration was conducted on the oysters exposed for 24 h. Sublethal effects were assessed in oysters exposed for 24 h and depurated for 48 h, using biomarkers like Catalase (CAT), Glutathione S-transferase (GST), and Glutathione Peroxidase (GPx), along with histological analyses. Polyester fabric grinding produced significant MFs (average length: 570 μm) with degraded surface and increased malleability. Oysters showed increased MF accumulation in digestive glands post-exposure, with no impact on antioxidant enzymes. Depuration decreased MFs accumulation. Histological analysis revealed accumulation in the stomach and brown cells, possibly indicating inflammation. This raises concerns about MFs bioaccumulation in marine organisms, impacting the food chain and safety.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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