干旱区生态环境知识资源中心(Arid): Biomarkers responses of the clam Anomalocardia flexuosa in sediment toxicity bioassays using dredged materials from a semi-arid coastal system

Arid

DOI	10.1016/j.heliyon.2020.e04030
	Biomarkers responses of the clam Anomalocardia flexuosa in sediment toxicity bioassays using dredged materials from a semi-arid coastal system
	Moreira, Lucas Buruaem; Sasaki, Silvio Tarou; Taniguchi, Satie; Peres, Tiago Farias; Lopes Figueira, Rubens Cesar; Bicego, Marcia Caruso; Marins, Rozane Valente; Costa-Lotufo, Leticia Veras; Souza Abessa, Denis Moledo
通讯作者	Moreira, LB
来源期刊	HELIYON
EISSN	2405-8440
出版年	2020
卷号	6 期号:5
英文摘要	Few test organisms are employed for sediment toxicity assessments in Tropical regions, including Brazil. We assessed the ability of the clam Anomalocardia flexuosa to respond to contamination in sediment bioassays using dredging materials of a semi-arid region (Ceara State, NE Brazil), with attention to sublethal responses. Sediments were collected during and after dredging (survey 1 and 2, respectively) and animals exposed in laboratory over 28 days, with responses measured at 7 days. Bioaccumulation of contaminants was determined in whole-body soft tissues as a metric of bioavailability, and biomarkers' changes were monitored in terms of enzymes of phase I and II metabolism, acetylcholinesterase (AChE), and antioxidant responses, lipid peroxidation (LPO) and DNA damage (strand breaks). Clams accumulated aliphatic (AHs) and aromatic hydrocarbons (PAHs), and linear alkylbenzenes (LABs) compared to control conditions (day 0), with increased amounts of As, Cd, Cu, and Zn observed in some samples. The enzyme glutathione S-transferase was enhanced in animals exposed to samples, indicating activation of phase II metabolism. Changes observed in glutathione peroxidase (GPx), glutathione reductase (GR), LPO and strand breaks were related to oxidative stress. AChE enzymatic activity also changed, as an indicator of neurotoxicity caused by sediment exposure. The computed integrated biomarker response index (IBR) ranked sites according to the contamination status and proximity to its sources. Correlations found for biomarkers and bioaccumulation of hydrocarbons indicated the influence of harbor activities, effluent discharges, and urban runoff on the sediment pollution of Mucuripe Bay. Data also showed that SQGs are unable to predict bioaccumulation and subchronic effects. Based on our results we consider that biomarkers responses in A. flexuosa are important endpoints to be applied in sediment toxicity bioassays in tropical regions.
英文关键词	Bioaccumulation Environmental monitoring Linear alkylbenzenes Marine pollution Metals Polycyclic aromatic hydrocarbons Sublethal effects Tropical environments Toxicity testing Weight of evidence Ecological health Marine biology Environmental assessment Environmental hazard Environmental health Environmental impact assessment Environmental pollution Environmental risk assessment Environmental toxicology Toxicology
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000537749900163
WOS关键词	ENVIRONMENTAL RISK-ASSESSMENT ; OXIDATIVE STRESS BIOMARKERS ; RUDITAPES-PHILIPPINARUM ; AMPELISCA-BREVICORNIS ; LIPID-PEROXIDATION ; MARINE ; QUALITY ; BIOACCUMULATION ; CONTAMINATION ; EXPOSURE
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
Scopus学科分类	UNESP Sao Vicente, Nucleo Estudos Poluicao & Ecotoxicol Aquat, Sao Vicente, Brazil.
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334391
作者单位	[Moreira, Lucas Buruaem; Peres, Tiago Farias; Marins, Rozane Valente; Costa-Lotufo, Leticia Veras] Univ Fed Ceara, Inst Ciencias Mar, Fortaleza, Ceara, Brazil; [Moreira, Lucas Buruaem; Souza Abessa, Denis Moledo] UNESP Sao Vicente, Nucleo Estudos Poluicao & Ecotoxicol Aquat, Sao Vicente, Brazil; [Sasaki, Silvio Tarou; Taniguchi, Satie; Lopes Figueira, Rubens Cesar; Bicego, Marcia Caruso] Univ Sao Paulo, Inst Oceanog, Sao Paulo, Brazil
推荐引用方式 GB/T 7714	Moreira, Lucas Buruaem,Sasaki, Silvio Tarou,Taniguchi, Satie,et al. Biomarkers responses of the clam Anomalocardia flexuosa in sediment toxicity bioassays using dredged materials from a semi-arid coastal system[J],2020,6(5).
APA	Moreira, Lucas Buruaem.,Sasaki, Silvio Tarou.,Taniguchi, Satie.,Peres, Tiago Farias.,Lopes Figueira, Rubens Cesar.,...&Souza Abessa, Denis Moledo.(2020).Biomarkers responses of the clam Anomalocardia flexuosa in sediment toxicity bioassays using dredged materials from a semi-arid coastal system.HELIYON,6(5).
MLA	Moreira, Lucas Buruaem,et al."Biomarkers responses of the clam Anomalocardia flexuosa in sediment toxicity bioassays using dredged materials from a semi-arid coastal system".HELIYON 6.5(2020).