title: Comparative analysis of selected semi-persistent and emerging pollutants in wild-caught fish and aquaculture associated fish using Bogue (Boops boops) as sentinel species.
abstract: The marine environment acts as a sink for diverse anthropogenic pollutants, although the environmental contamination may be non-uniformly distributed. In recent decades, the aquaculture sector has experienced a steady growth postulating as a good alternative for seafood production. However, a social debate exits about the differential level of pollutants in wild and farmed species. This study was designed to evaluate the level of pollutants in a sentinel species: Bogue (Boops boops) associated and non-associated to fish-farm cages. A total of 82 chemical substances were determined by gas chromatography-mass spectrometry, including persistent (polychlorobiphenyls (PCBs) and organochlorine pesticides (OCPs)), semi-persistent (bromodiphenyl ethers (BDEs) and polycyclic aromatic hydrocarbons (PAHs)), and emerging pollutants (such as organophosphate flame retardants (OPFRs) and UV-filters). In general, aquaculture-associated bogues showed lower levels of semi-persistent and emerging pollutants than wild-caught fish, especially when sums were considered. Thus, sum of BDEs was significantly lower in the aquaculture group (p=0.01). A similar trend was also observed for benzo(a)anthracene, the UV-filter 2-ethylhexyl-p-methoxycinnamate and some OPFRs. In the case of persistent pollutants, the sum of dioxin-like PCBs and sum of DDTs were lower in the group of wild-caught bogues (p=0.034 and p=0.003, respectively) than in aquaculture-associated bogues, as previously described for some aquaculture species. Fish feed appear as an important factor in the uptake of such substances suggesting a diet intervention to reduce their levels in the aquaculture products. Another interesting result is that for almost all chemical substances analyzed, bogues captured near sewage outfalls showed the highest levels of pollutants, pointing out the need of stringent measures for wastewater treatment units discharging in coastal areas. On the light of these results, further research in specific farmed and wild fish species in relation to their dietary value and pollutant's levels seems to be mandatory.
authors.affiliation: Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Universidad de Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain.
authors.forename: Luis Alberto
authors.initials: LA
authors.lastname: Henríquez-Hernández
authors.affiliation: Aquaculture Research Group (GIA), ECOAQUA Institute, Universidad de Las Palmas de Gran Canaria, Crta. Taliarte s/n., 35214 Telde, Spain.
authors.forename: Daniel
authors.initials: D
authors.lastname: Montero
authors.affiliation: Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Universidad de Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain.
authors.forename: María
authors.initials: M
authors.lastname: Camacho
authors.affiliation: Aquaculture Research Group (GIA), ECOAQUA Institute, Universidad de Las Palmas de Gran Canaria, Crta. Taliarte s/n., 35214 Telde, Spain.
authors.forename: Rafael
authors.initials: R
authors.lastname: Ginés
authors.affiliation: Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Universidad de Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain; Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBERObn), Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain.
authors.forename: Luis D
authors.initials: LD
authors.lastname: Boada
authors.affiliation: Biodiversity and Conservation Research Group (BIOCON), ECOAQUA Institute, Universidad de Las Palmas de Gran Canaria, Crta. Taliarte s/n., 35214 Telde, Spain.
authors.forename: Besay
authors.initials: B
authors.lastname: Ramírez Bordón
authors.affiliation: Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Universidad de Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain.
authors.forename: Pilar F
authors.initials: PF
authors.lastname: Valerón
authors.affiliation: Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Universidad de Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain.
authors.forename: Maira
authors.initials: M
authors.lastname: Almeida-González
authors.affiliation: Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Universidad de Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain.
authors.forename: Manuel
authors.initials: M
authors.lastname: Zumbado
authors.affiliation: Biodiversity and Conservation Research Group (BIOCON), ECOAQUA Institute, Universidad de Las Palmas de Gran Canaria, Crta. Taliarte s/n., 35214 Telde, Spain.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Haroun
authors.affiliation: Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Universidad de Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain; Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBERObn), Paseo Blas Cabrera Felipe s/n, 35016 Las Palmas, Spain. Electronic address: octavio.perez@ulpgc.es.
authors.forename: Octavio P
authors.initials: OP
authors.lastname: Luzardo
mesh_terms: D000818:Animals; D017756:Aquaculture; D004784:Environmental Monitoring; D005399:Fishes; D005411:Flame Retardants / Q000032:analysis; D006843:Hydrocarbons, Chlorinated / Q000032:analysis; D011078:Polychlorinated Biphenyls / Q000032:analysis; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis; D017747:Seafood; D000072739:Sentinel Species; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D005411:Flame Retardants; D006843:Hydrocarbons, Chlorinated; D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls
keywords: Aquaculture; Chlorpyrifos; Emerging pollutants; Organophosphorus flame retardants; Persistent organic pollutants; Sunscreen