Eco-toxicological analysis of free-ranging cetaceans from the North-western Mediterranean Sea
The numerous anthropogenic activities occurring nowadays in the North-western Mediterranean Sea strongly affect top predators such as marine mammals, especially through the bioaccumulation of lipophilic contaminants. In order to assess the eco-toxicological status of local living cetaceans blubber b...
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ftorbi:oai:orbi.ulg.ac.be:2268/184510 2024-04-21T07:57:55+00:00 Eco-toxicological analysis of free-ranging cetaceans from the North-western Mediterranean Sea Pinzone, Marianna Ody, Denis Lepoint, Gilles Tasciotti, Aurelie Scholl, Georges Thomé, Jean-Pierre Budzinski, Hélène Tapie, Natalie Schnitzler, Joseph Eppe, Gauthier Das, Krishna MARE - Centre Interfacultaire de Recherches en Océanologie - ULiège CART - Centre Interfacultaire d'Analyse des Résidus en Traces - ULiège ISM/LPTC, Laboratory of physical and chemical chemistry, University of Bordeaux I 2015-03-25 8 https://orbi.uliege.be/handle/2268/184510 https://orbi.uliege.be/bitstream/2268/184510/1/Pinzone_Marianna_abstract.pdf en eng https://orbi.uliege.be/handle/2268/184510 info:hdl:2268/184510 https://orbi.uliege.be/bitstream/2268/184510/1/Pinzone_Marianna_abstract.pdf open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess 29th Conference of European Cetaceans Society, from 23-03-2015 to 25-03-2015 chemical tracer blubber biopsy trophic level toxicity Mediterranean Life sciences Environmental sciences & ecology Sciences du vivant Sciences de l’environnement & écologie conference paper not in proceedings http://purl.org/coar/resource_type/c_18cp info:eu-repo/semantics/conferencePaper 2015 ftorbi 2024-03-27T14:57:48Z The numerous anthropogenic activities occurring nowadays in the North-western Mediterranean Sea strongly affect top predators such as marine mammals, especially through the bioaccumulation of lipophilic contaminants. In order to assess the eco-toxicological status of local living cetaceans blubber biopsies were collected between 2006 and 2013. Selected persistent organic pollutants POPs (31PCBs, 15 organochlorine compounds, 9 PBDEs and 17 PCDD/Fs) were analyzed in 49 long-finned pilot whales Globicephala melas, 61 sperm whales Physeter macrocephalus and 70 fin whales Balaenoptera physalus. δ13C, δ15N values and POPs levels were assessed through IR-MS and GC-MS respectively. To assess the toxic potency of the dioxin-like compounds, the TEQ approach was applied. δ15N values were 12.2±1.3‰ for sperm whales, 10.5±0.7‰ for pilot whales and 7.7±0.8‰ in fin whales, positioning sperm whales at higher trophic levels. δ13C instead was similar and amounted to −17.3±0.4‰, −17.8±0.3‰ and −18.7±0.4‰ respectively. Pilot whales presented higher concentrations than sperm whales for ΣPCBs (38666±25731ng.g-1 lw and 22849±15566ng.g-1 lw respectively), ΣPBDEs (712±412ng.g-1 lw and 347±173ng.g-1 lw respectively) and ΣDDTs (46081±37506ng.g-1 lw and 37647±38518ng.g-1 lw respectively). Fin whales presented the lowest values, in accordance with its trophic position (ΣPCBs: 5721±5180ng.g-1 lw, ΣPBDEs: 177±208ng.g-1 lw and ΣDDTs: 6643±5549ng.g-1 lw). The PCA analysis confirmed how p,p’DDT and p,p’DDE were influential in differentiating the species, as a consequence of their migratory behavior and distribution. Pollutant concentrations were significantly higher than both their Southern Hemisphere and North Atlantic counterparts, possibly due to the particular Mediterranean geomorphology, which influences pollutants distribution and recycle. Dioxin-like  PCBs accounted for over 80% of the total TEQ. This study demonstrated (1) an important exposure to pollutants of Mediterranean toothed-whales, often surpassing the estimated threshold ... Conference Object Balaenoptera physalus North Atlantic Physeter macrocephalus toothed whales University of Liège: ORBi (Open Repository and Bibliography) |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
chemical tracer blubber biopsy trophic level toxicity Mediterranean Life sciences Environmental sciences & ecology Sciences du vivant Sciences de l’environnement & écologie |
spellingShingle |
chemical tracer blubber biopsy trophic level toxicity Mediterranean Life sciences Environmental sciences & ecology Sciences du vivant Sciences de l’environnement & écologie Pinzone, Marianna Ody, Denis Lepoint, Gilles Tasciotti, Aurelie Scholl, Georges Thomé, Jean-Pierre Budzinski, Hélène Tapie, Natalie Schnitzler, Joseph Eppe, Gauthier Das, Krishna Eco-toxicological analysis of free-ranging cetaceans from the North-western Mediterranean Sea |
topic_facet |
chemical tracer blubber biopsy trophic level toxicity Mediterranean Life sciences Environmental sciences & ecology Sciences du vivant Sciences de l’environnement & écologie |
description |
The numerous anthropogenic activities occurring nowadays in the North-western Mediterranean Sea strongly affect top predators such as marine mammals, especially through the bioaccumulation of lipophilic contaminants. In order to assess the eco-toxicological status of local living cetaceans blubber biopsies were collected between 2006 and 2013. Selected persistent organic pollutants POPs (31PCBs, 15 organochlorine compounds, 9 PBDEs and 17 PCDD/Fs) were analyzed in 49 long-finned pilot whales Globicephala melas, 61 sperm whales Physeter macrocephalus and 70 fin whales Balaenoptera physalus. δ13C, δ15N values and POPs levels were assessed through IR-MS and GC-MS respectively. To assess the toxic potency of the dioxin-like compounds, the TEQ approach was applied. δ15N values were 12.2±1.3‰ for sperm whales, 10.5±0.7‰ for pilot whales and 7.7±0.8‰ in fin whales, positioning sperm whales at higher trophic levels. δ13C instead was similar and amounted to −17.3±0.4‰, −17.8±0.3‰ and −18.7±0.4‰ respectively. Pilot whales presented higher concentrations than sperm whales for ΣPCBs (38666±25731ng.g-1 lw and 22849±15566ng.g-1 lw respectively), ΣPBDEs (712±412ng.g-1 lw and 347±173ng.g-1 lw respectively) and ΣDDTs (46081±37506ng.g-1 lw and 37647±38518ng.g-1 lw respectively). Fin whales presented the lowest values, in accordance with its trophic position (ΣPCBs: 5721±5180ng.g-1 lw, ΣPBDEs: 177±208ng.g-1 lw and ΣDDTs: 6643±5549ng.g-1 lw). The PCA analysis confirmed how p,p’DDT and p,p’DDE were influential in differentiating the species, as a consequence of their migratory behavior and distribution. Pollutant concentrations were significantly higher than both their Southern Hemisphere and North Atlantic counterparts, possibly due to the particular Mediterranean geomorphology, which influences pollutants distribution and recycle. Dioxin-like  PCBs accounted for over 80% of the total TEQ. This study demonstrated (1) an important exposure to pollutants of Mediterranean toothed-whales, often surpassing the estimated threshold ... |
author2 |
MARE - Centre Interfacultaire de Recherches en Océanologie - ULiège CART - Centre Interfacultaire d'Analyse des Résidus en Traces - ULiège ISM/LPTC, Laboratory of physical and chemical chemistry, University of Bordeaux I |
format |
Conference Object |
author |
Pinzone, Marianna Ody, Denis Lepoint, Gilles Tasciotti, Aurelie Scholl, Georges Thomé, Jean-Pierre Budzinski, Hélène Tapie, Natalie Schnitzler, Joseph Eppe, Gauthier Das, Krishna |
author_facet |
Pinzone, Marianna Ody, Denis Lepoint, Gilles Tasciotti, Aurelie Scholl, Georges Thomé, Jean-Pierre Budzinski, Hélène Tapie, Natalie Schnitzler, Joseph Eppe, Gauthier Das, Krishna |
author_sort |
Pinzone, Marianna |
title |
Eco-toxicological analysis of free-ranging cetaceans from the North-western Mediterranean Sea |
title_short |
Eco-toxicological analysis of free-ranging cetaceans from the North-western Mediterranean Sea |
title_full |
Eco-toxicological analysis of free-ranging cetaceans from the North-western Mediterranean Sea |
title_fullStr |
Eco-toxicological analysis of free-ranging cetaceans from the North-western Mediterranean Sea |
title_full_unstemmed |
Eco-toxicological analysis of free-ranging cetaceans from the North-western Mediterranean Sea |
title_sort |
eco-toxicological analysis of free-ranging cetaceans from the north-western mediterranean sea |
publishDate |
2015 |
url |
https://orbi.uliege.be/handle/2268/184510 https://orbi.uliege.be/bitstream/2268/184510/1/Pinzone_Marianna_abstract.pdf |
genre |
Balaenoptera physalus North Atlantic Physeter macrocephalus toothed whales |
genre_facet |
Balaenoptera physalus North Atlantic Physeter macrocephalus toothed whales |
op_source |
29th Conference of European Cetaceans Society, from 23-03-2015 to 25-03-2015 |
op_relation |
https://orbi.uliege.be/handle/2268/184510 info:hdl:2268/184510 https://orbi.uliege.be/bitstream/2268/184510/1/Pinzone_Marianna_abstract.pdf |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
_version_ |
1796939320134729728 |