preliminary study on multi-level biomarkers response of the tropical oyster Crassostrea brasiliana to exposure to the antifouling biocide DCOI

Autor(es)

de Campos, Bruno Galvao ^[1] ; Fontes, Mayana Karoline ^[1] ; Gusso-Choueri, Paloma Kachel ^[2] ; Marinsek, Gabriela Pustiglione ^{[1, 3]} ; Nobre, Caio Rodrigues ^[1] ; Moreno, Beatriz Barbosa ^[4] ; Lemos Abreu, Fiamma Eugenia ^[5] ; Fillmann, Gilberto ^[5] ; Mari, Renata de Britto ^[1] ; de Souza Abessa, Denis Moledo ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, UNESP, Biosci Inst, Praca Infante Dom Henrique S-N, BR-11330900 Sao Vicente, SP - Brazil

^[2] Univ Santa Cecilia, Dept Ecotoxicol, Santos, SP - Brazil

^[3] Sao Paulo State Univ, UNESP, Inst Adv Studies Ocean, Av Joao Francisco Bensdorp 1178, BR-11350011 Sao Vicente, SP - Brazil

^[4] Univ Fed Sao Paulo UNIFESP, Inst Mar, Rua Maria Maximo 168, BR-11030100 Santos, SP - Brazil

^[5] Univ Fed Rio Grande FURG, Inst Oceanog, Av Italia S-N, Km 8, Campus Carreiros, BR-96203900 Rio Grande, RS - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Marine Pollution Bulletin; v. 174, JAN 2022.
• Citações Web of Science: 0

Resumo

This study investigated the sublethal effects of environmentally relevant concentrations of DCOIT on the neotropical oyster Crassostrea brasiliana. Gills and digestive glands of animals exposed to increasing concentrations of DCOIT were analyzed for biochemical, cellular, and histopathological responses. Exposure to DCOIT (0.2 to 151 mu g L-1) for 120 h triggered oxidative stress in both tissues (through the modulation of GPX, GST, GSH and GR), which led to damage of membrane lipids (increase of LPO and reduction of the NRRT). DCOIT increased histopathological pathologies in gills, such as necrosis, lymphocyte infiltration and epithelial desquamation. This study showed that short term exposure to environmental concentrations of DCOIT causes negative effects on C. brasiliana at biochemical, physiological, and histological levels. Therefore, the use of DCOIT as a booster biocide in antifouling paints should be further assessed, as it may cause environmental hazards to marine organisms. (AU)

• Processo FAPESP: 17/10211-0 - Estudo ecotoxicológico do biocida anti-incrustante Sea-Nine em invertebrados marinhos neotropicais.
• Beneficiário: Bruno Galvão de Campos
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 17/04970-5 - Relações entre concentrações de metais no sedimento, bioacumulação e respostas tóxicas em p. vivipara: subsídios para avaliação de risco ambiental
• Beneficiário: Paloma Kachel Gusso Choueri
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 20/03004-0 - Avaliação da bioacumulação e toxicidade de nanomateriais anti-incrustantes inovadores em invertebrados marinhos neotropicais e subtropicais
• Beneficiário: Denis Moledo de Souza Abessa
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Regular