High pollutant exposure level of the largest European community of bottlenose dolphins in the English Channel

Abstract The objective of this study was to assess the levels of persistent organic pollutants (POPs) and mercury (T-Hg) in the blubber and skin, respectively, of the free-ranging bottlenose dolphins, Tursiops truncatus, from the Normanno-Breton Gulf, one of the largest identified coastal population...

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Autores principales:	Cyrielle Zanuttini, François Gally, Georges Scholl, Jean-Pierre Thomé, Gauthier Eppe, Krishna Das
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f17309a7e3734d08a9a461bdb7886822
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spelling	oai:doaj.org-article:f17309a7e3734d08a9a461bdb78868222021-12-02T15:07:54ZHigh pollutant exposure level of the largest European community of bottlenose dolphins in the English Channel10.1038/s41598-019-48485-72045-2322https://doaj.org/article/f17309a7e3734d08a9a461bdb78868222019-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-48485-7https://doaj.org/toc/2045-2322Abstract The objective of this study was to assess the levels of persistent organic pollutants (POPs) and mercury (T-Hg) in the blubber and skin, respectively, of the free-ranging bottlenose dolphins, Tursiops truncatus, from the Normanno-Breton Gulf, one of the largest identified coastal population in Europe. Among all the POPs analysed in this study, the ∑NDL-PCBs were the most abundant compounds found in the blubber (mean: 1.33 × 105–0.65 × 105 ng.g−1 lipid weight (lw) for males and females respectively), followed by ∑DDX (1.11 × 104–4.67 × 103 ng.g−1 lw) > ∑DL-PCBs (8.06 × 103–2.62 × 103ng.g−1 lw) > ∑PBDEs (1.95 × 103–0.64 × 103ng.g−1 lw) > dieldrin (1.86 × 103–0.18 × 103 ng.g−1 lw) > ∑endosulfan (405–62 ng.g−1 lw) > HCB (86–52 ng.g−1 lw) > ∑HCHs (47–60 ng.g−1 lw) > ∑chlordane (24–0.97 ng.g−1 lw) > ∑PCDFs (0.3–0.1 ng.g−1 lw) > ∑PCDDs (0.06–0.05 ng.g−1 lw). The T-Hg concentrations were highly variable between individuals (2.45 × 103 ng.g−1 to 21.3 × 103 ng.g−1 dry weight, dw). The reported concentrations are among the highest reported for cetaceans. We strongly recommend that the Normanno-Breton Gulf be a special area of conservation (cSAC) candidate because it contains the last large European population of bottlenose dolphins (rare or threatened within a European context) designated under the EC Habitats Directive.Cyrielle ZanuttiniFrançois GallyGeorges SchollJean-Pierre ThoméGauthier EppeKrishna DasNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-10 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Cyrielle Zanuttini François Gally Georges Scholl Jean-Pierre Thomé Gauthier Eppe Krishna Das High pollutant exposure level of the largest European community of bottlenose dolphins in the English Channel
description	Abstract The objective of this study was to assess the levels of persistent organic pollutants (POPs) and mercury (T-Hg) in the blubber and skin, respectively, of the free-ranging bottlenose dolphins, Tursiops truncatus, from the Normanno-Breton Gulf, one of the largest identified coastal population in Europe. Among all the POPs analysed in this study, the ∑NDL-PCBs were the most abundant compounds found in the blubber (mean: 1.33 × 105–0.65 × 105 ng.g−1 lipid weight (lw) for males and females respectively), followed by ∑DDX (1.11 × 104–4.67 × 103 ng.g−1 lw) > ∑DL-PCBs (8.06 × 103–2.62 × 103ng.g−1 lw) > ∑PBDEs (1.95 × 103–0.64 × 103ng.g−1 lw) > dieldrin (1.86 × 103–0.18 × 103 ng.g−1 lw) > ∑endosulfan (405–62 ng.g−1 lw) > HCB (86–52 ng.g−1 lw) > ∑HCHs (47–60 ng.g−1 lw) > ∑chlordane (24–0.97 ng.g−1 lw) > ∑PCDFs (0.3–0.1 ng.g−1 lw) > ∑PCDDs (0.06–0.05 ng.g−1 lw). The T-Hg concentrations were highly variable between individuals (2.45 × 103 ng.g−1 to 21.3 × 103 ng.g−1 dry weight, dw). The reported concentrations are among the highest reported for cetaceans. We strongly recommend that the Normanno-Breton Gulf be a special area of conservation (cSAC) candidate because it contains the last large European population of bottlenose dolphins (rare or threatened within a European context) designated under the EC Habitats Directive.
format	article
author	Cyrielle Zanuttini François Gally Georges Scholl Jean-Pierre Thomé Gauthier Eppe Krishna Das
author_facet	Cyrielle Zanuttini François Gally Georges Scholl Jean-Pierre Thomé Gauthier Eppe Krishna Das
author_sort	Cyrielle Zanuttini
title	High pollutant exposure level of the largest European community of bottlenose dolphins in the English Channel
title_short	High pollutant exposure level of the largest European community of bottlenose dolphins in the English Channel
title_full	High pollutant exposure level of the largest European community of bottlenose dolphins in the English Channel
title_fullStr	High pollutant exposure level of the largest European community of bottlenose dolphins in the English Channel
title_full_unstemmed	High pollutant exposure level of the largest European community of bottlenose dolphins in the English Channel
title_sort	high pollutant exposure level of the largest european community of bottlenose dolphins in the english channel
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/f17309a7e3734d08a9a461bdb7886822
work_keys_str_mv	AT cyriellezanuttini highpollutantexposurelevelofthelargesteuropeancommunityofbottlenosedolphinsintheenglishchannel AT francoisgally highpollutantexposurelevelofthelargesteuropeancommunityofbottlenosedolphinsintheenglishchannel AT georgesscholl highpollutantexposurelevelofthelargesteuropeancommunityofbottlenosedolphinsintheenglishchannel AT jeanpierrethome highpollutantexposurelevelofthelargesteuropeancommunityofbottlenosedolphinsintheenglishchannel AT gauthiereppe highpollutantexposurelevelofthelargesteuropeancommunityofbottlenosedolphinsintheenglishchannel AT krishnadas highpollutantexposurelevelofthelargesteuropeancommunityofbottlenosedolphinsintheenglishchannel
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High pollutant exposure level of the largest European community of bottlenose dolphins in the English Channel

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