PMID- 27139301 OWN - NLM STAT- MEDLINE DCOM- 20180321 LR - 20180321 IS - 1879-1026 (Electronic) IS - 0048-9697 (Linking) VI - 563-564 DP - 2016 Sep 1 TI - Blue sharks (Prionace glauca) as bioindicators of pollution and health in the Atlantic Ocean: Contamination levels and biochemical stress responses. PG - 282-92 LID - S0048-9697(16)30765-3 [pii] LID - 10.1016/j.scitotenv.2016.04.085 [doi] AB - Marine ecosystems are constantly being threatened by contaminants produced by human activities. There is an urge to better understand their impacts on marine organisms and develop reliable tools for biomonitoring studies, while also assessing their potential impacts on human health. Given their position on top of food webs, sharks are particularly susceptible to bioaccumulation, making them potential sentinel species of marine contamination. The main objective of this study was to find suitable biomarkers for future marine pollution biomonitoring studies by correlating biochemical responses with tissue contaminant body burden in blue sharks (Prionace glauca), a species heavily caught and consumed by humans, while also addressing their general health. The chemical contaminants analysed comprised different persistent organic pollutants (POPs) families from polychlorinated compounds to brominated flame retardants (BFRs) and perfluorinated compounds (PFCs) and different trace and heavy metals. Concentrations of some contaminants in sharks' tissues were found to be above the legally allowed limits for human consumption. A canonical correspondence analysis (CCA) was performed and some strong associations were found between biochemical responses and contaminants' accumulation levels. DNA damage and lipid peroxidation levels, as well as the inhibition of the antioxidant enzyme glutathione peroxidase, were the main effects and consequences of contamination. The impact of contamination on these vital macromolecules underlines the suboptimal conditions of the sampled P. glauca, which can ultimately lead to the degradation of core ecological aspects, such as swimming, feeding, and reproduction. It can be concluded that P. glauca demonstrates great potential to be used as environmental sentinel and suitable biomarker candidates were identified in this work. Moreover, this study also highlights the risks that the consumption of blue shark derived products can pose to human health, which is of upmost interest as the sampled organisms were still juveniles and already presented values above regulatory limits. CI - Copyright (c) 2016 Elsevier B.V. All rights reserved. FAU - Alves, Luis M F AU - Alves LM AD - MARE - Marine and Environmental Sciences Centre, ESTM, Instituto Politecnico de Leiria, 2520-641 Peniche, Portugal. FAU - Nunes, Margarida AU - Nunes M AD - MARE - Marine and Environmental Sciences Centre, ESTM, Instituto Politecnico de Leiria, 2520-641 Peniche, Portugal; LUNAM Universite, Oniris, USC 1329, Laboratoire d'Etude des Residus et Contaminants dans les Aliments (LABERCA), Nantes, France. FAU - Marchand, Philippe AU - Marchand P AD - LUNAM Universite, Oniris, USC 1329, Laboratoire d'Etude des Residus et Contaminants dans les Aliments (LABERCA), Nantes, France. FAU - Le Bizec, Bruno AU - Le Bizec B AD - LUNAM Universite, Oniris, USC 1329, Laboratoire d'Etude des Residus et Contaminants dans les Aliments (LABERCA), Nantes, France. FAU - Mendes, Susana AU - Mendes S AD - MARE - Marine and Environmental Sciences Centre, ESTM, Instituto Politecnico de Leiria, 2520-641 Peniche, Portugal. FAU - Correia, Joao P S AU - Correia JP AD - MARE - Marine and Environmental Sciences Centre, ESTM, Instituto Politecnico de Leiria, 2520-641 Peniche, Portugal; Flying Sharks, 9900-361 Horta, Portugal. FAU - Lemos, Marco F L AU - Lemos MF AD - MARE - Marine and Environmental Sciences Centre, ESTM, Instituto Politecnico de Leiria, 2520-641 Peniche, Portugal. FAU - Novais, Sara C AU - Novais SC AD - MARE - Marine and Environmental Sciences Centre, ESTM, Instituto Politecnico de Leiria, 2520-641 Peniche, Portugal. Electronic address: sara.novais@ipleiria.pt. LA - eng PT - Journal Article DEP - 20160430 PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 RN - 0 (Environmental Biomarkers) RN - 0 (Metals, Heavy) RN - 0 (Water Pollutants, Chemical) SB - IM MH - Animals MH - Atlantic Ocean MH - Environmental Biomarkers/*drug effects MH - *Environmental Exposure MH - Environmental Monitoring MH - Female MH - Male MH - Metals, Heavy/*metabolism MH - Portugal MH - Sharks/*metabolism MH - Water Pollutants, Chemical/*metabolism MH - Water Pollution/adverse effects OTO - NOTNLM OT - Biomarkers OT - Human health risk OT - Marine pollution OT - Oxidative stress OT - Sharks OT - Xenobiotics EDAT- 2016/05/04 06:00 MHDA- 2018/03/22 06:00 CRDT- 2016/05/04 06:00 PHST- 2016/01/15 00:00 [received] PHST- 2016/04/11 00:00 [revised] PHST- 2016/04/11 00:00 [accepted] PHST- 2016/05/04 06:00 [entrez] PHST- 2016/05/04 06:00 [pubmed] PHST- 2018/03/22 06:00 [medline] AID - S0048-9697(16)30765-3 [pii] AID - 10.1016/j.scitotenv.2016.04.085 [doi] PST - ppublish SO - Sci Total Environ. 2016 Sep 1;563-564:282-92. doi: 10.1016/j.scitotenv.2016.04.085. Epub 2016 Apr 30.