Dioxins, furans and co-planar PCBs in juvenile harbour porpoises (Phocoena phocoena) from the Belgian coasts
Dioxins, furans and PCBs are lipophilic anthropogenic contaminants that have found their way into marine food webs and accumulate in top predators such as marine mammals, adding a stress factor to an already vulnerable population. In this study 7 congeners of dioxins (PCDDs), 10 congeners of furans...
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ftorbi:oai:orbi.ulg.ac.be:2268/72899 2024-04-21T08:04:13+00:00 Dioxins, furans and co-planar PCBs in juvenile harbour porpoises (Phocoena phocoena) from the Belgian coasts Beans, Cristina Das, Krishna Jauniaux, Thierry Massart, Anne-Cécile De Pauw, Edwin Bouquegneau, Jean-Marie MARE - Centre Interfacultaire de Recherches en Océanologie - ULiège 2003 https://orbi.uliege.be/handle/2268/72899 en eng https://orbi.uliege.be/handle/2268/72899 info:hdl:2268/72899 restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess 17th conference of the European Cetacean Society, Las Palmas de Gran Canaria, Spain [ES], 9-12 mars 2003 pollutants marine mammals harbour porpoise Phocoena phocoena Dioxin-like compounds Life sciences Environmental sciences & ecology Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Sciences aquatiques & océanologie conference poster not in proceedings http://purl.org/coar/resource_type/c_18co info:eu-repo/semantics/conferencePoster 2003 ftorbi 2024-03-27T14:43:21Z Dioxins, furans and PCBs are lipophilic anthropogenic contaminants that have found their way into marine food webs and accumulate in top predators such as marine mammals, adding a stress factor to an already vulnerable population. In this study 7 congeners of dioxins (PCDDs), 10 congeners of furans (PCDFs) and 4 congeners of coplanar PCBs (cPCBs) were determined using high resolution gas chromatography and mass spectrometry in the blubber of 19 juvenile harbour porpoises (Phocoena phocoena) stranded along the Belgian North Sea coastline between 1995 and 2001. These results were contrasted with nutritional status (emaciated or not), sex and trophic level (through stable carbon and nitrogen isotope analysis). Mean blubber concentrations of SPCDD/Fs were 12.8 pg/g lw (lipid weight) and mean related toxicity 1.84 pg TEQs/g lw (TEQs = TCDD toxic equivalents). Mean cPCB concentrations were 223,5 pg/g lw and mean related toxicity 4,47 pg TEQs/g lw. The levels detected in these individuals were of the same order as those found in a previous study in the Wadden Sea (Bruhn, 1999). Both sexes show rather similar levels. No significant relationship was observed between stable carbon or nitrogen isotope values and pollutant levels. Concentrations and toxicity show a tendency to be higher in emaciated ndividuals than in nonemaciated ones. This could indicate a possible relationship between the nutritional status of the animals and dioxinlike pollutants (which could participate in weakening the animal). This situation should be further studied on adult individuals in order to obtain a more global view of the possible effects on the population. Conference Object Harbour porpoise Phocoena phocoena 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 |
pollutants marine mammals harbour porpoise Phocoena phocoena Dioxin-like compounds Life sciences Environmental sciences & ecology Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Sciences aquatiques & océanologie |
spellingShingle |
pollutants marine mammals harbour porpoise Phocoena phocoena Dioxin-like compounds Life sciences Environmental sciences & ecology Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Sciences aquatiques & océanologie Beans, Cristina Das, Krishna Jauniaux, Thierry Massart, Anne-Cécile De Pauw, Edwin Bouquegneau, Jean-Marie Dioxins, furans and co-planar PCBs in juvenile harbour porpoises (Phocoena phocoena) from the Belgian coasts |
topic_facet |
pollutants marine mammals harbour porpoise Phocoena phocoena Dioxin-like compounds Life sciences Environmental sciences & ecology Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Sciences aquatiques & océanologie |
description |
Dioxins, furans and PCBs are lipophilic anthropogenic contaminants that have found their way into marine food webs and accumulate in top predators such as marine mammals, adding a stress factor to an already vulnerable population. In this study 7 congeners of dioxins (PCDDs), 10 congeners of furans (PCDFs) and 4 congeners of coplanar PCBs (cPCBs) were determined using high resolution gas chromatography and mass spectrometry in the blubber of 19 juvenile harbour porpoises (Phocoena phocoena) stranded along the Belgian North Sea coastline between 1995 and 2001. These results were contrasted with nutritional status (emaciated or not), sex and trophic level (through stable carbon and nitrogen isotope analysis). Mean blubber concentrations of SPCDD/Fs were 12.8 pg/g lw (lipid weight) and mean related toxicity 1.84 pg TEQs/g lw (TEQs = TCDD toxic equivalents). Mean cPCB concentrations were 223,5 pg/g lw and mean related toxicity 4,47 pg TEQs/g lw. The levels detected in these individuals were of the same order as those found in a previous study in the Wadden Sea (Bruhn, 1999). Both sexes show rather similar levels. No significant relationship was observed between stable carbon or nitrogen isotope values and pollutant levels. Concentrations and toxicity show a tendency to be higher in emaciated ndividuals than in nonemaciated ones. This could indicate a possible relationship between the nutritional status of the animals and dioxinlike pollutants (which could participate in weakening the animal). This situation should be further studied on adult individuals in order to obtain a more global view of the possible effects on the population. |
author2 |
MARE - Centre Interfacultaire de Recherches en Océanologie - ULiège |
format |
Conference Object |
author |
Beans, Cristina Das, Krishna Jauniaux, Thierry Massart, Anne-Cécile De Pauw, Edwin Bouquegneau, Jean-Marie |
author_facet |
Beans, Cristina Das, Krishna Jauniaux, Thierry Massart, Anne-Cécile De Pauw, Edwin Bouquegneau, Jean-Marie |
author_sort |
Beans, Cristina |
title |
Dioxins, furans and co-planar PCBs in juvenile harbour porpoises (Phocoena phocoena) from the Belgian coasts |
title_short |
Dioxins, furans and co-planar PCBs in juvenile harbour porpoises (Phocoena phocoena) from the Belgian coasts |
title_full |
Dioxins, furans and co-planar PCBs in juvenile harbour porpoises (Phocoena phocoena) from the Belgian coasts |
title_fullStr |
Dioxins, furans and co-planar PCBs in juvenile harbour porpoises (Phocoena phocoena) from the Belgian coasts |
title_full_unstemmed |
Dioxins, furans and co-planar PCBs in juvenile harbour porpoises (Phocoena phocoena) from the Belgian coasts |
title_sort |
dioxins, furans and co-planar pcbs in juvenile harbour porpoises (phocoena phocoena) from the belgian coasts |
publishDate |
2003 |
url |
https://orbi.uliege.be/handle/2268/72899 |
genre |
Harbour porpoise Phocoena phocoena |
genre_facet |
Harbour porpoise Phocoena phocoena |
op_source |
17th conference of the European Cetacean Society, Las Palmas de Gran Canaria, Spain [ES], 9-12 mars 2003 |
op_relation |
https://orbi.uliege.be/handle/2268/72899 info:hdl:2268/72899 |
op_rights |
restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess |
_version_ |
1796943851788697600 |