Persistent Organic Pollutants (POPs) in killer whales (Orcinus orca) from the Crozet archipelago, southern Indian Ocean
Abstract Persistent Organic Pollutants (POPs), including polychlorinated biphenyls (PCBs), polychlorinated dibenzo-p-dioxins (PCDDs), and dibenzofurans (PCDFs), are ubiquitous environmental contaminants of which significant concentrations are reported in upper trophic level animals. In 1998, we coll...
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fttrinitycoll:oai:tara.tcd.ie:2262/50297 2023-05-15T17:03:40+02:00 Persistent Organic Pollutants (POPs) in killer whales (Orcinus orca) from the Crozet archipelago, southern Indian Ocean 2011-02-04T04:50:15Z http://hdl.handle.net/2262/50297 https://doi.org/10.1016/j.marenvres.2009.06.009 en eng Elsevier 01411136 (ISSN) S0141-1136(09)00070-1 (PII) S0141-1136(09)00070-1 (publisherID) http://hdl.handle.net/2262/50297 Marine Environmental Research 68 4 196 doi:10.1016/j.marenvres.2009.06.009 2009 12 months killer whale Crozet Archipelago PCBs PCDDs PCDFs TEQs 2011 fttrinitycoll https://doi.org/10.1016/j.marenvres.2009.06.009 2020-02-16T13:51:08Z Abstract Persistent Organic Pollutants (POPs), including polychlorinated biphenyls (PCBs), polychlorinated dibenzo-p-dioxins (PCDDs), and dibenzofurans (PCDFs), are ubiquitous environmental contaminants of which significant concentrations are reported in upper trophic level animals. In 1998, we collected blubber biopsy samples (n=11) from killer whales (Orcinus orca) inhabiting the coastal waters around Possession Island, Crozet Archipelago, southern Indian Ocean, for contaminant analyses. Despite inhabiting an isolated region far removed from industrial activities, these killer whales can presently be considered among the most PCB-contaminated cetaceans in the southern hemisphere, with concentrations ranging from 4.4 to 20.5 mg/kg lipid weight (lw). PCDD levels ranged from below the detection limit (5 ng/kg) to 77.1 ng/kg lw and PCDF levels from below the detection limit (7 ng/kg) to 36.1 ng/kg lw. Over 70% of our study animals had PCB concentrations which exceeded a 1.3 mg/kg PCB threshold established for endocrine disruption and immunotoxicity in free-ranging harbour seals, suggesting that organic contaminants cannot be ruled out as an additional threat to this declining population. correspondence: Corresponding author. (S.Ross, Peter) peter.s.ross@dfo-mpo.gc.ca (S.Ross, Peter) Institute of Ocean Sciences - Fisheries and Oceans Canada--> , 9860 West Saanich Road--> , P.O.Box 6000--> , Sidney--> , British Columbia V8L 4B2--> - CANADA (Noel, Marie) School of Earth and Ocean Sciences, University of Victoria - British Columbia V8W 3P6--> - CANADA (Noel, Marie) Vancouver Aquarium--> , Marine Science Center--> , Vancouver--> , British Columbia V6B 3X8--> - CANADA (Barrett-Lennard, Lance) Centre d?Etudes Biologiques de Chize, Centre National de la Recherche Scientifique - 79360 Villiers-en-Bois--> - FRANCE (Guinet, Christophe) Institute of Ocean Sciences - Fisheries and Oceans Canada--> , 9860 West Saanich Road--> , P.O.Box 6000--> , Sidney--> , British Columbia V8L 4B2--> - CANADA (Dangerfield, Neil) Institute of Ocean Sciences - Fisheries and Oceans Canada--> , 9860 West Saanich Road--> , P.O.Box 6000--> , Sidney--> , British Columbia V8L 4B2--> - CANADA (S.Ross, Peter) CANADA (S.Ross, Peter) CANADA FRANCE Received: 2009-01-10 Revised: 2009-04-24 Accepted: 2009-06-02 Other/Unknown Material Killer Whale Orca Orcinus orca Possession Island Killer whale The University of Dublin, Trinity College: TARA (Trinity's Access to Research Archive) Canada Indian British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Barrett ENVELOPE(-126.773,-126.773,54.428,54.428) Possession Island ENVELOPE(171.200,171.200,-71.867,-71.867) Marine Environmental Research 68 4 196 202 |
institution |
Open Polar |
collection |
The University of Dublin, Trinity College: TARA (Trinity's Access to Research Archive) |
op_collection_id |
fttrinitycoll |
language |
English |
topic |
killer whale Crozet Archipelago PCBs PCDDs PCDFs TEQs |
spellingShingle |
killer whale Crozet Archipelago PCBs PCDDs PCDFs TEQs Persistent Organic Pollutants (POPs) in killer whales (Orcinus orca) from the Crozet archipelago, southern Indian Ocean |
topic_facet |
killer whale Crozet Archipelago PCBs PCDDs PCDFs TEQs |
description |
Abstract Persistent Organic Pollutants (POPs), including polychlorinated biphenyls (PCBs), polychlorinated dibenzo-p-dioxins (PCDDs), and dibenzofurans (PCDFs), are ubiquitous environmental contaminants of which significant concentrations are reported in upper trophic level animals. In 1998, we collected blubber biopsy samples (n=11) from killer whales (Orcinus orca) inhabiting the coastal waters around Possession Island, Crozet Archipelago, southern Indian Ocean, for contaminant analyses. Despite inhabiting an isolated region far removed from industrial activities, these killer whales can presently be considered among the most PCB-contaminated cetaceans in the southern hemisphere, with concentrations ranging from 4.4 to 20.5 mg/kg lipid weight (lw). PCDD levels ranged from below the detection limit (5 ng/kg) to 77.1 ng/kg lw and PCDF levels from below the detection limit (7 ng/kg) to 36.1 ng/kg lw. Over 70% of our study animals had PCB concentrations which exceeded a 1.3 mg/kg PCB threshold established for endocrine disruption and immunotoxicity in free-ranging harbour seals, suggesting that organic contaminants cannot be ruled out as an additional threat to this declining population. correspondence: Corresponding author. (S.Ross, Peter) peter.s.ross@dfo-mpo.gc.ca (S.Ross, Peter) Institute of Ocean Sciences - Fisheries and Oceans Canada--> , 9860 West Saanich Road--> , P.O.Box 6000--> , Sidney--> , British Columbia V8L 4B2--> - CANADA (Noel, Marie) School of Earth and Ocean Sciences, University of Victoria - British Columbia V8W 3P6--> - CANADA (Noel, Marie) Vancouver Aquarium--> , Marine Science Center--> , Vancouver--> , British Columbia V6B 3X8--> - CANADA (Barrett-Lennard, Lance) Centre d?Etudes Biologiques de Chize, Centre National de la Recherche Scientifique - 79360 Villiers-en-Bois--> - FRANCE (Guinet, Christophe) Institute of Ocean Sciences - Fisheries and Oceans Canada--> , 9860 West Saanich Road--> , P.O.Box 6000--> , Sidney--> , British Columbia V8L 4B2--> - CANADA (Dangerfield, Neil) Institute of Ocean Sciences - Fisheries and Oceans Canada--> , 9860 West Saanich Road--> , P.O.Box 6000--> , Sidney--> , British Columbia V8L 4B2--> - CANADA (S.Ross, Peter) CANADA (S.Ross, Peter) CANADA FRANCE Received: 2009-01-10 Revised: 2009-04-24 Accepted: 2009-06-02 |
title |
Persistent Organic Pollutants (POPs) in killer whales (Orcinus orca) from the Crozet archipelago, southern Indian Ocean |
title_short |
Persistent Organic Pollutants (POPs) in killer whales (Orcinus orca) from the Crozet archipelago, southern Indian Ocean |
title_full |
Persistent Organic Pollutants (POPs) in killer whales (Orcinus orca) from the Crozet archipelago, southern Indian Ocean |
title_fullStr |
Persistent Organic Pollutants (POPs) in killer whales (Orcinus orca) from the Crozet archipelago, southern Indian Ocean |
title_full_unstemmed |
Persistent Organic Pollutants (POPs) in killer whales (Orcinus orca) from the Crozet archipelago, southern Indian Ocean |
title_sort |
persistent organic pollutants (pops) in killer whales (orcinus orca) from the crozet archipelago, southern indian ocean |
publisher |
Elsevier |
publishDate |
2011 |
url |
http://hdl.handle.net/2262/50297 https://doi.org/10.1016/j.marenvres.2009.06.009 |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) ENVELOPE(-126.773,-126.773,54.428,54.428) ENVELOPE(171.200,171.200,-71.867,-71.867) |
geographic |
Canada Indian British Columbia Barrett Possession Island |
geographic_facet |
Canada Indian British Columbia Barrett Possession Island |
genre |
Killer Whale Orca Orcinus orca Possession Island Killer whale |
genre_facet |
Killer Whale Orca Orcinus orca Possession Island Killer whale |
op_relation |
01411136 (ISSN) S0141-1136(09)00070-1 (PII) S0141-1136(09)00070-1 (publisherID) http://hdl.handle.net/2262/50297 Marine Environmental Research 68 4 196 doi:10.1016/j.marenvres.2009.06.009 |
op_rights |
2009 12 months |
op_doi |
https://doi.org/10.1016/j.marenvres.2009.06.009 |
container_title |
Marine Environmental Research |
container_volume |
68 |
container_issue |
4 |
container_start_page |
196 |
op_container_end_page |
202 |
_version_ |
1766057575785168896 |