气候变化领域集成服务门户(CCPortal): Risk assessment of Arctic aquatic species using ecotoxicological biomarkers and Bayesian network

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DOI	10.1016/j.marpolbul.2020.111212
	Risk assessment of Arctic aquatic species using ecotoxicological biomarkers and Bayesian network
	Fahd F.; Veitch B.; Khan F.
发表日期	2020
ISSN	0025326X
卷号	156
英文摘要	The risk to Arctic aquatic species due to accidental oil spills is not well studied. One of the key reasons for this limitation is the lack of understanding of the dose-response relations for the species in the Arctic region. The present study addresses this knowledge gap. It proposes a new approach to develop dose-response curves for Arctic aquatic species. The application of the approach is demonstrated using the estimation of mortality risk in Boreogadus saida (polar cod) due to exposure from polycyclic aromatic hydrocarbons (PAH). The proposed approach considers the toxicity mechanism in Arctic species (i.e. polar cod) and regional environmental factors, and models these as a belief-based Bayesian Network (BN). The BN model integrates diverse ecotoxicology biomarker data types and predicts the cell death probability due to exposure to a toxicant (PAH in crude oil). The input data and results from the model were verified using data available in the literature. Seasonal sea ice played a major role in containing PAH exposure and subsequent risk to polar cod. However, the physiological factors, such as presence of higher Phase II activity, and higher oxyradical scavenging ability, had greater impact on PAH risk mitigation. © 2020 Elsevier Ltd
英文关键词	Arctic, polar cod; Bayesian network; Boreogadus saida; Ecotoxicity; Toxicity mechanism
语种	英语
scopus关键词	Bayesian networks; Biomarkers; Cell death; Oil spills; Polycyclic aromatic hydrocarbons; Risk perception; Sea ice; Dose-response curves; Dose-response relations; Ecotoxicological; Environmental factors; Physiological factors; Polycyclic aromatic hydrocarbon (PAH); Scavenging ability; Toxicity mechanisms; Risk assessment; biological marker; petroleum; polycyclic aromatic hydrocarbon; reactive oxygen metabolite; biological marker; cytochrome P450 1A1; Bayesian analysis; biomarker; demersal fish; ecotoxicology; mortality; oil spill; PAH; pollution exposure; risk assessment; aquatic species; Arctic; Article; Bayesian network; Boreogadus saida; cell death; controlled study; ecotoxicity; environmental exposure; enzyme activity; hazard assessment; mortality; prediction; risk assessment; sea ice; seasonal variation; teleost; animal; Arctic; Bayes theorem; ecotoxicology; risk assessment; water pollutant; Arctic; Boreogadus saida; Animals; Arctic Regions; Bayes Theorem; Biomarkers; Cytochrome P-450 CYP1A1; Ecotoxicology; Risk Assessment; Water Pollutants, Chemical
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148927
作者单位	Centre for Risk, Integrity and Safety Engineering (C-RISE), Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada
推荐引用方式 GB/T 7714	Fahd F.,Veitch B.,Khan F.. Risk assessment of Arctic aquatic species using ecotoxicological biomarkers and Bayesian network[J],2020,156.
APA	Fahd F.,Veitch B.,&Khan F..(2020).Risk assessment of Arctic aquatic species using ecotoxicological biomarkers and Bayesian network.Marine Pollution Bulletin,156.
MLA	Fahd F.,et al."Risk assessment of Arctic aquatic species using ecotoxicological biomarkers and Bayesian network".Marine Pollution Bulletin 156(2020).