Concentrations of Polychlorinated Biphenyls (PCB’s), Chlorinated Pesticides, and Heavy Metals and Other Elements in Tissues of Belugas, Delphinapterus leucas, from Cook Inlet
Tissues from Cook Inlet beluga whales, Delphinapterus leucas, that were collected as part of the Alaska Marine Mammal Tissue Archival Project were analyzed for polychlorinated biphenyls (PCB’s), chlorinated pesticides, and heavy metals and other elements. Concentrations of total PCB’s (ΣPCB’s), tota...
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2000
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ftoceandocs:oai:aquadocs.org:1834/26386 2023-05-15T14:50:04+02:00 Concentrations of Polychlorinated Biphenyls (PCB’s), Chlorinated Pesticides, and Heavy Metals and Other Elements in Tissues of Belugas, Delphinapterus leucas, from Cook Inlet Becker, Paul R. Krahn, Margaret M. Mackey, Elizabeth A. Demiralp, Rabia Schantz , Michele M. Epstein, Michael S. Donais, Mary Kate Porter, Barbara J. Muir , Derek C. G. Wise , Stephen A. 2000 application/pdf 81-98 http://hdl.handle.net/1834/26386 en eng http://spo.nwr.noaa.gov/mfr623/mfr6238.pdf 0090-1830 http://hdl.handle.net/1834/26386 http://aquaticcommons.org/id/eprint/9772 403 2012-08-14 20:25:44 9772 United States National Marine Fisheries Service Biology Ecology Fisheries article TRUE 2000 ftoceandocs 2023-04-06T17:03:10Z Tissues from Cook Inlet beluga whales, Delphinapterus leucas, that were collected as part of the Alaska Marine Mammal Tissue Archival Project were analyzed for polychlorinated biphenyls (PCB’s), chlorinated pesticides, and heavy metals and other elements. Concentrations of total PCB’s (ΣPCB’s), total DDT (ΣDDT), chlordane compounds, hexachlorobenzene (HCB), dieldrin, mirex, toxaphene, and hexachlorocyclohexane (HCH) measured in Cook Inlet beluga blubber were compared with those reported for belugas from two Arctic Alaska locations (Point Hope and Point Lay), Greenland, Arctic Canada, and the highly contaminated stock from the St. Lawrence estuary in eastern Canada. The Arctic and Cook Inlet belugas had much lower concentrations (ΣPCB’s and ΣDDT were an order of magnitude lower) than those found in animals from the St. Lawrence estuary. The Cook Inlet belugas had the lowest concentrations of all (ΣPCB’s aver-aged 1.49 ± 0.70 and 0.79 ± 0.56 mg/kg wet mass, and ΣDDT averaged 1.35 ± 0.73 and 0.59 ± 0.45 mg/kg in males and females, respectively). Concentrations in the blubber of the Cook Inlet males were significantly lower than those found in the males of the Arctic Alaska belugas (ΣPCB’s and ΣDDT were about half). The lower levels in the Cook Inlet animals might be due to differences in contaminant sources, food web differences, or different age distributions among the animals sampled. Cook Inlet males had higher mean and median concentrations than did females, a result attributable to the transfer of these compounds from mother to calf during pregnancy and during lactation. Liver concentrations of cadmium and mercury were lower in the Cook Inlet belugas (most cadmium values were <1 mg/kg and mercury values were 0.704–11.42 mg/kg wet mass), but copper levels were significantly higher in the Cook Inlet animals (3.97–123.8 mg/kg wet mass) than in Arctic Alaska animals and similar to those reported for belugas from Hudson Bay. Although total mercury levels were the lowest in the Cook Inlet population, ... Article in Journal/Newspaper Arctic Beluga Beluga* Delphinapterus leucas Greenland Hudson Bay Alaska IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications Arctic Canada Greenland Hudson Hudson Bay Point Hope ENVELOPE(173.306,173.306,52.911,52.911) |
institution |
Open Polar |
collection |
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
English |
topic |
Biology Ecology Fisheries |
spellingShingle |
Biology Ecology Fisheries Becker, Paul R. Krahn, Margaret M. Mackey, Elizabeth A. Demiralp, Rabia Schantz , Michele M. Epstein, Michael S. Donais, Mary Kate Porter, Barbara J. Muir , Derek C. G. Wise , Stephen A. Concentrations of Polychlorinated Biphenyls (PCB’s), Chlorinated Pesticides, and Heavy Metals and Other Elements in Tissues of Belugas, Delphinapterus leucas, from Cook Inlet |
topic_facet |
Biology Ecology Fisheries |
description |
Tissues from Cook Inlet beluga whales, Delphinapterus leucas, that were collected as part of the Alaska Marine Mammal Tissue Archival Project were analyzed for polychlorinated biphenyls (PCB’s), chlorinated pesticides, and heavy metals and other elements. Concentrations of total PCB’s (ΣPCB’s), total DDT (ΣDDT), chlordane compounds, hexachlorobenzene (HCB), dieldrin, mirex, toxaphene, and hexachlorocyclohexane (HCH) measured in Cook Inlet beluga blubber were compared with those reported for belugas from two Arctic Alaska locations (Point Hope and Point Lay), Greenland, Arctic Canada, and the highly contaminated stock from the St. Lawrence estuary in eastern Canada. The Arctic and Cook Inlet belugas had much lower concentrations (ΣPCB’s and ΣDDT were an order of magnitude lower) than those found in animals from the St. Lawrence estuary. The Cook Inlet belugas had the lowest concentrations of all (ΣPCB’s aver-aged 1.49 ± 0.70 and 0.79 ± 0.56 mg/kg wet mass, and ΣDDT averaged 1.35 ± 0.73 and 0.59 ± 0.45 mg/kg in males and females, respectively). Concentrations in the blubber of the Cook Inlet males were significantly lower than those found in the males of the Arctic Alaska belugas (ΣPCB’s and ΣDDT were about half). The lower levels in the Cook Inlet animals might be due to differences in contaminant sources, food web differences, or different age distributions among the animals sampled. Cook Inlet males had higher mean and median concentrations than did females, a result attributable to the transfer of these compounds from mother to calf during pregnancy and during lactation. Liver concentrations of cadmium and mercury were lower in the Cook Inlet belugas (most cadmium values were <1 mg/kg and mercury values were 0.704–11.42 mg/kg wet mass), but copper levels were significantly higher in the Cook Inlet animals (3.97–123.8 mg/kg wet mass) than in Arctic Alaska animals and similar to those reported for belugas from Hudson Bay. Although total mercury levels were the lowest in the Cook Inlet population, ... |
format |
Article in Journal/Newspaper |
author |
Becker, Paul R. Krahn, Margaret M. Mackey, Elizabeth A. Demiralp, Rabia Schantz , Michele M. Epstein, Michael S. Donais, Mary Kate Porter, Barbara J. Muir , Derek C. G. Wise , Stephen A. |
author_facet |
Becker, Paul R. Krahn, Margaret M. Mackey, Elizabeth A. Demiralp, Rabia Schantz , Michele M. Epstein, Michael S. Donais, Mary Kate Porter, Barbara J. Muir , Derek C. G. Wise , Stephen A. |
author_sort |
Becker, Paul R. |
title |
Concentrations of Polychlorinated Biphenyls (PCB’s), Chlorinated Pesticides, and Heavy Metals and Other Elements in Tissues of Belugas, Delphinapterus leucas, from Cook Inlet |
title_short |
Concentrations of Polychlorinated Biphenyls (PCB’s), Chlorinated Pesticides, and Heavy Metals and Other Elements in Tissues of Belugas, Delphinapterus leucas, from Cook Inlet |
title_full |
Concentrations of Polychlorinated Biphenyls (PCB’s), Chlorinated Pesticides, and Heavy Metals and Other Elements in Tissues of Belugas, Delphinapterus leucas, from Cook Inlet |
title_fullStr |
Concentrations of Polychlorinated Biphenyls (PCB’s), Chlorinated Pesticides, and Heavy Metals and Other Elements in Tissues of Belugas, Delphinapterus leucas, from Cook Inlet |
title_full_unstemmed |
Concentrations of Polychlorinated Biphenyls (PCB’s), Chlorinated Pesticides, and Heavy Metals and Other Elements in Tissues of Belugas, Delphinapterus leucas, from Cook Inlet |
title_sort |
concentrations of polychlorinated biphenyls (pcb’s), chlorinated pesticides, and heavy metals and other elements in tissues of belugas, delphinapterus leucas, from cook inlet |
publishDate |
2000 |
url |
http://hdl.handle.net/1834/26386 |
long_lat |
ENVELOPE(173.306,173.306,52.911,52.911) |
geographic |
Arctic Canada Greenland Hudson Hudson Bay Point Hope |
geographic_facet |
Arctic Canada Greenland Hudson Hudson Bay Point Hope |
genre |
Arctic Beluga Beluga* Delphinapterus leucas Greenland Hudson Bay Alaska |
genre_facet |
Arctic Beluga Beluga* Delphinapterus leucas Greenland Hudson Bay Alaska |
op_source |
http://aquaticcommons.org/id/eprint/9772 403 2012-08-14 20:25:44 9772 United States National Marine Fisheries Service |
op_relation |
http://spo.nwr.noaa.gov/mfr623/mfr6238.pdf 0090-1830 http://hdl.handle.net/1834/26386 |
_version_ |
1766321148618866688 |