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dc.contributor.authorRomero-Romero, Sonia-
dc.contributor.authorHerrero, Laura-
dc.contributor.authorFernández Martín, Mario Antonio-
dc.contributor.authorGómara, B.-
dc.contributor.authorAcuña Fernández, José Luis-
dc.identifierdoi: 10.1016/j.scitotenv.2017.06.148-
dc.identifierissn: 0048-9697-
dc.identifiere-issn: 1879-1026-
dc.identifier.citationScience of the Total Environment 605-606: 589-597 (2017)-
dc.description.abstractPolychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) and polychlorinated dibenzo-p-dioxins and -furans (PCDD/Fs) were measured in a temperate, deep-sea ecosystem, the Avilés submarine Canyon (AC; Cantabrian Sea, Southern Bay of Biscay). There was an increase of contaminant concentration with the trophic level of the organisms, as calculated from stable nitrogen isotope data (δN). Such biomagnification was only significant for the pelagic food web and its magnitude was highly dependent on the type of top predators included in the analysis. The trophic magnification factor (TMF) for PCB-153 in the pelagic food web (spanning four trophic levels) was 6.2 or 2.2, depending on whether homeotherm top predators (cetaceans and seabirds) were included or not in the analysis, respectively. Since body size is significantly correlated with δN, it can be used as a proxy to estimate trophic magnification, what can potentially lead to a simple and convenient method to calculate the TMF. In spite of their lower biomagnification, deep-sea fishes showed higher concentrations than their shallower counterparts, although those differences were not significant. In summary, the AC fauna exhibits contaminant levels comparable or lower than those reported in other systems.-
dc.description.sponsorshipThis study was carried out within the framework of project DOSMARES (ref. CTM2010-21810-CO3-01) fromtheMinistry of Science and Innovation, Spanish Government to JLA. Authors thank the Spanish Ministry of Economy and Competitiveness, Comunidad de Madrid (Spain) and European funding from FEDER programs for their financial support (projects AGL2012-37201 and S2013/ABI-3028 - AVANSECAL). SRRwas supported by a FPU fellowship (ref. 12/00851) fromtheMinistry of Education, Culture and Sports. We thank all the scientists and the crewof B/OSarmiento deGamboa and the Unidad de TecnologíaMarina (UTM) for their help with sampling. Drawings in Fig. 2 were made by Nadia Romero. We thank Luis Laria and CEPESMA for granting us access to cetacean and giant squid samples and to the CEP and SEO/BirdLife for bird samples. This is a contribution of the Asturias Marine Observatory.-
dc.subjectTrophic magnification factor (TMF)-
dc.subjectPredator: Prey mass ratio (PPMR)-
dc.subjectBody size-
dc.subjectStable isotopes-
dc.titleBiomagnification of persistent organic pollutants in a deep-sea, temperate food web-
dc.description.versionPeer Reviewed-
dc.contributor.funderEuropean Commission-
dc.contributor.funderMinisterio de Economía, Industria y Competitividad (España)-
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