Author(s): Campos, Bruno Galvão de [UNESP] ; Fontes, Mayana Karoline [UNESP] ; Gusso-Choueri, Paloma Kachel ; Marinsek, Gabriela Pustiglione [UNESP] ; Nobre, Caio Rodrigues [UNESP] ; Moreno, Beatriz Barbosa ; Abreu, Fiamma Eugenia Lemos ; Fillmann, Gilberto ; de Britto Mari, Renata [UNESP] ; Abessa, Denis Moledo de Souza [UNESP]
Date: 2022
Persistent ID: http://hdl.handle.net/11449/233931
Origin: Oasisbr
Subject(s): Bivalve; Environmental hazard; Histopathology; Neutral red; Sea-nine; Toxicity
Made available in DSpace on 2022-05-01T11:54:04Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-01
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Financiadora de Estudos e Projetos
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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 μg 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.
Bioscience Institute São Paulo State University (UNESP), Praça Infante Dom Henrique, s/n
Department of Ecotoxicology Santa Cecília University, Santos
Institute for Advanced Studies of Ocean São Paulo State University (UNESP), Av. João Francisco Bensdorp, 1178
Instituto do Mar Universidade Federal de São Paulo (UNIFESP), Rua Maria Máximo, 168
Instituto de Oceanografia Universidade Federal do Rio Grande (FURG), Av. Itália s/n, km 8, Campus Carreiros
Bioscience Institute São Paulo State University (UNESP), Praça Infante Dom Henrique, s/n
Institute for Advanced Studies of Ocean São Paulo State University (UNESP), Av. João Francisco Bensdorp, 1178
CAPES: 001
Financiadora de Estudos e Projetos: 1111/13 – 01.14.0141.00
FAPESP: 2017/04970-5
FAPESP: 2017/10211-0
FAPESP: 2020/03004-0
CAPES: 308533/2018-6
CAPES: 314202/2018-8
CNPq: 456372/2013-0
CAPES: 88881.156405/2017-01
