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Volumn 331, Issue 1-3, 2004, Pages 83-105

Regional and inter annual patterns of heavy metals, organochlorines and stable isotopes in narwhals (Monodon monoceros) from West Greenland

Author keywords

Carbon 13; Heavy metals; Monodon monoceros; Narwhal; Nitrogen 15; Organochlorines; Stable isotopes; West Greenland

Indexed keywords

BIOLOGICAL ORGANS; CADMIUM; CARBON; CONCENTRATION (PROCESS); ISOTOPES; MERCURY (METAL); MUSCLE; NITROGEN; ORGANOMETALLICS; SELENIUM;

EID: 5044243448     PISSN: 00489697     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.scitotenv.2004.03.041     Document Type: Article
Times cited : (34)

References (62)
  • 1
    • 0016203770 scopus 로고
    • Organochlorines residue levels in Arctic ringed seals: Variation with age and sex
    • Addison R.F., Smith T.G. Organochlorines residue levels in Arctic ringed seals: variation with age and sex. Oikos. 25:1974;335-337
    • (1974) Oikos , vol.25 , pp. 335-337
    • Addison, R.F.1    Smith, T.G.2
  • 2
    • 0033981469 scopus 로고    scopus 로고
    • Analytical methods, quality assurance and quality control in the Greenland AMAP programme
    • Asmund A., Cleemann M. Analytical methods, quality assurance and quality control in the Greenland AMAP programme. Sci Total Environ. 245:2000;203-219
    • (2000) Sci Total Environ , vol.245 , pp. 203-219
    • Asmund, A.1    Cleemann, M.2
  • 3
    • 0031796286 scopus 로고    scopus 로고
    • Biomagnification and bioaccumulation of mercury in an Arctic marine food web: Insights from stable-nitrogen isotope analysis
    • Atwell L., Hobson K.A., Welch H.E. Biomagnification and bioaccumulation of mercury in an Arctic marine food web: insights from stable-nitrogen isotope analysis. Can J Fish Aqua Sci. 55:1998;1114-1121
    • (1998) Can J Fish Aqua Sci , vol.55 , pp. 1114-1121
    • Atwell, L.1    Hobson, K.A.2    Welch, H.E.3
  • 4
    • 0006959980 scopus 로고
    • Abundance and stock composition of narwhals (Monodon monoceros) in Inglefield Bredning (NW Greenland)
    • Born E.W., Heide-Jørgensen M.P., Larsen F., Martin A.R. Abundance and stock composition of narwhals (Monodon monoceros) in Inglefield Bredning (NW Greenland). Bioscience. 39:1994;51-68
    • (1994) Bioscience , vol.39 , pp. 51-68
    • Born, E.W.1    Heide-Jørgensen, M.P.2    Larsen, F.3    Martin, A.R.4
  • 5
    • 0036937471 scopus 로고    scopus 로고
    • Regional variation of caesium-137 in minke whales Balaenoptera acutorostrata from West Greenland the Northeast Atlantic and the North Sea
    • Born E.W., Dahlgaard H., Riget F.F., Dietz R., Øien N., Haug T. Regional variation of caesium-137 in minke whales Balaenoptera acutorostrata from West Greenland the Northeast Atlantic and the North Sea. Polar Biol. 25:2002;907-913
    • (2002) Polar Biol , vol.25 , pp. 907-913
    • Born, E.W.1    Dahlgaard, H.2    Riget, F.F.3    Dietz, R.4    Øien, N.5    Haug, T.6
  • 6
    • 0141993498 scopus 로고    scopus 로고
    • Stock structure of North Atlantic minke whales (Balaenoptera acutorostrata) inferred from regional variation of elemental and stable isotopic signatures in tissues
    • Born E.W., Outridge P., Riget F.F., Hobson K., Dietz R., Haug T., Øien N. Stock structure of North Atlantic minke whales (Balaenoptera acutorostrata) inferred from regional variation of elemental and stable isotopic signatures in tissues. J Mar Sys. 43:2003;1-17
    • (2003) J Mar Sys , vol.43 , pp. 1-17
    • Born, E.W.1    Outridge, P.2    Riget, F.F.3    Hobson, K.4    Dietz, R.5    Haug, T.6    Øien, N.7
  • 7
    • 0008673360 scopus 로고
    • The beluga (Delphinapterus leucas): Growth at age based on a captive specimen and a discussion of factors reflecting mortality estimates
    • Brodie P. The beluga (Delphinapterus leucas): growth at age based on a captive specimen and a discussion of factors reflecting mortality estimates. Rep Int Whal Commn. 32:1982;445-447
    • (1982) Rep Int Whal Commn , vol.32 , pp. 445-447
    • Brodie, P.1
  • 8
    • 0000057188 scopus 로고    scopus 로고
    • Analyses of polychlorinated biphenyls and chlorinated pesticides in biota: Method and quality assurance
    • Cleemann M., Paulsen G.B., Storr-Hansen E., Fromberg A. Analyses of polychlorinated biphenyls and chlorinated pesticides in biota: method and quality assurance. J AOAC Int. 82:(5):1999;1175-1184
    • (1999) J AOAC Int , vol.82 , Issue.5 , pp. 1175-1184
    • Cleemann, M.1    Paulsen, G.B.2    Storr-Hansen, E.3    Fromberg, A.4
  • 10
    • 0023736166 scopus 로고
    • Trends in chlorobiphenyl contents in livers of Atlantic cod (Gadus morphua) from the North Sea, 1979-1987
    • de Boer J. Trends in chlorobiphenyl contents in livers of Atlantic cod (Gadus morphua) from the North Sea, 1979-1987. Chemosphere. 17:1988;1811-1819
    • (1988) Chemosphere , vol.17 , pp. 1811-1819
    • De Boer, J.1
  • 11
    • 0027732301 scopus 로고
    • Determination of toxaphene in human milk from Nicaragua and in fish and marine mammals from North-eastern Atlantic and the North Sea
    • de Boer J., Wester P.G. Determination of toxaphene in human milk from Nicaragua and in fish and marine mammals from North-eastern Atlantic and the North Sea. Chemosphere. 27:1993;1879-1890
    • (1993) Chemosphere , vol.27 , pp. 1879-1890
    • De Boer, J.1    Wester, P.G.2
  • 15
    • 0029474326 scopus 로고
    • Movements and swimming speed of narwhals, Monodon monoceros, equipped with satellite transmitters in Melville Bay, Northwest Greenland
    • Dietz R., Heide-Jørgensen M.P. Movements and swimming speed of narwhals, Monodon monoceros, equipped with satellite transmitters in Melville Bay, Northwest Greenland. Can J Zool. 73:1995;2106-2119
    • (1995) Can J Zool , vol.73 , pp. 2106-2119
    • Dietz, R.1    Heide-Jørgensen, M.P.2
  • 16
    • 0035209376 scopus 로고    scopus 로고
    • Summer and fall Movements of Narwhals (Monodon monoceros) from Northeastern Baffin Island towards Northern Davis Strait
    • Dietz R., Heide-Jørgensen M.P., Richard P., Acquarone M. Summer and fall Movements of Narwhals (Monodon monoceros) from Northeastern Baffin Island towards Northern Davis Strait. Arctic. 54:(3):2001;246-263
    • (2001) Arctic , vol.54 , Issue.3 , pp. 246-263
    • Dietz, R.1    Heide-Jørgensen, M.P.2    Richard, P.3    Acquarone, M.4
  • 18
    • 8544252680 scopus 로고
    • Concentrations of heavy metals and organochlorines in marine mammals of northern waters: Overview and evaluation
    • Unpublished Wagemann, R, Muir DCG
    • Fallis B, unpublished cited in: Wagemann, R, Muir DCG 1984. Concentrations of heavy metals and organochlorines in marine mammals of northern waters: overview and evaluation. Can Tech Rep Fish Aquat Sci No. 1279. V + 97 pp
    • (1984) Can Tech Rep Fish Aquat Sci No. 1279
    • Fallis, B.1
  • 19
    • 0343089398 scopus 로고
    • Mercury in harbour porpoise (Phocoena phocoena) from the Bay of Fundy region
    • Gaskin D.E., Ishida K., Frank R. Mercury in harbour porpoise (Phocoena phocoena) from the Bay of Fundy region. J Fish Res Board Can. 29:(11):1972;1644-1646
    • (1972) J Fish Res Board Can , vol.29 , Issue.11 , pp. 1644-1646
    • Gaskin, D.E.1    Ishida, K.2    Frank, R.3
  • 20
    • 0018603796 scopus 로고
    • Changes in mercury levels in Harbour porpoises from the Bay of Fundy, Canada and adjacent waters during 1969-1977
    • Gaskin D.E., Stonefield K.I., Suda P., Frank R. Changes in mercury levels in Harbour porpoises from the Bay of Fundy, Canada and adjacent waters during 1969-1977. Arch Environ Contam Toxicol. 8:1979;733-761
    • (1979) Arch Environ Contam Toxicol , vol.8 , pp. 733-761
    • Gaskin, D.E.1    Stonefield, K.I.2    Suda, P.3    Frank, R.4
  • 21
    • 0001936217 scopus 로고
    • Growth layer groups (GLGs) in the teeth of an adult belukha whale (Delphinapterus leucas) of known age: Evidence for two annual layers
    • Goren A.D., Brodie P., Spotte S. Growth layer groups (GLGs) in the teeth of an adult belukha whale (Delphinapterus leucas) of known age: evidence for two annual layers. Mar Mamm Sci. 3:1987;14-21
    • (1987) Mar Mamm Sci , vol.3 , pp. 14-21
    • Goren, A.D.1    Brodie, P.2    Spotte, S.3
  • 22
    • 0002129711 scopus 로고
    • Zinc, cadmium, mercury and selenium in minke whales, belugas, and narwhals from West Greenland
    • Hansen C.T., Overgaard Nielsen C., Dietz R., Munk Hansen M. Zinc, cadmium, mercury and selenium in minke whales, belugas, and narwhals from West Greenland. Polar Biol. 10:1990;529-539
    • (1990) Polar Biol , vol.10 , pp. 529-539
    • Hansen, C.T.1    Overgaard Nielsen, C.2    Dietz, R.3    Munk Hansen, M.4
  • 23
    • 0001770044 scopus 로고
    • A note on the diet of narwhals (Monodon monoceros) in Inglefield Bredning (NW Greenland)
    • Heide-Jørgensen M.-P., Dietz R., Leatherwood S. A note on the diet of narwhals (Monodon monoceros) in Inglefield Bredning (NW Greenland). Bioscience. 39:1994;213-216
    • (1994) Bioscience , vol.39 , pp. 213-216
    • Heide-Jørgensen, M.-P.1    Dietz, R.2    Leatherwood, S.3
  • 25
    • 0036932122 scopus 로고    scopus 로고
    • Autumn movements, home ranges and winter density of narwhals (Monodon monoceros) from Tremblay Sound, Baffin Island
    • Heide-Jørgensen M.P., Dietz R., Laidre K., Richard P.R. Autumn movements, home ranges and winter density of narwhals (Monodon monoceros) from Tremblay Sound, Baffin Island. Polar Biol. 25:2002;331-341
    • (2002) Polar Biol , vol.25 , pp. 331-341
    • Heide-Jørgensen, M.P.1    Dietz, R.2    Laidre, K.3    Richard, P.R.4
  • 26
    • 0038614683 scopus 로고    scopus 로고
    • The migratory behaviour of narwhals (Monodon monoceros). An estimate of the fraction of belugas (Delphinapterus leucas) in the Canadian High Arctic that winter in West Greenland
    • Heide-Jørgensen M.P., Richard P., Dietz R., Laidre K.L., Orr J. The migratory behaviour of narwhals (Monodon monoceros). An estimate of the fraction of belugas (Delphinapterus leucas) in the Canadian High Arctic that winter in West Greenland. Polar Biol. 26:2003;318-326
    • (2003) Polar Biol , vol.26 , pp. 318-326
    • Heide-Jørgensen, M.P.1    Richard, P.2    Dietz, R.3    Laidre, K.L.4    Orr, J.5
  • 28
    • 0037290272 scopus 로고    scopus 로고
    • Levels and patterns of persistent organochlorines in minke whale (Balaenoptera acutorostrata) from the North Atlantic and European Arctic
    • Hobbs K.E., Muir D.C.G., Born E.W., Dietz R., Haug T., Metcalfe T., Metcalfe C., Øien N. Levels and patterns of persistent organochlorines in minke whale (Balaenoptera acutorostrata) from the North Atlantic and European Arctic. Environ Pollut. 121:2003;239-252
    • (2003) Environ Pollut , vol.121 , pp. 239-252
    • Hobbs, K.E.1    Muir, D.C.G.2    Born, E.W.3    Dietz, R.4    Haug, T.5    Metcalfe, T.6    Metcalfe, C.7    Øien, N.8
  • 29
    • 0000582893 scopus 로고
    • Assessing avian diets using stable isotopes. I: Turnover of carbon-13 in tissues
    • Hobson K.A., Clark R.G. Assessing avian diets using stable isotopes. I: Turnover of carbon-13 in tissues. Condor. 94:1992;181-188
    • (1992) Condor , vol.94 , pp. 181-188
    • Hobson, K.A.1    Clark, R.G.2
  • 30
    • 0031973087 scopus 로고    scopus 로고
    • Stable isotope analyses of tooth annuli reveal temporal dietary records: An example using Steller sea lions
    • Hobson K.A., Sease J.L. Stable isotope analyses of tooth annuli reveal temporal dietary records: an example using Steller sea lions. Mar Mamm Sci. 14:(1):1998;116-129
    • (1998) Mar Mamm Sci , vol.14 , Issue.1 , pp. 116-129
    • Hobson, K.A.1    Sease, J.L.2
  • 32
    • 0030621054 scopus 로고    scopus 로고
    • Investigating trophic relationships of pinnipeds in Alaska and Washington using stable isotope ratios of nitrogen and carbon
    • Hobson K.A., Sease J.L., Merrick R.L., Piatt J.F. Investigating trophic relationships of pinnipeds in Alaska and Washington using stable isotope ratios of nitrogen and carbon. Mar Mamm Sci. 13:(1):1997;114-132
    • (1997) Mar Mamm Sci , vol.13 , Issue.1 , pp. 114-132
    • Hobson, K.A.1    Sease, J.L.2    Merrick, R.L.3    Piatt, J.F.4
  • 37
    • 0019824279 scopus 로고
    • Involvement of tissue sulfydryls in the formation of a complex of methylmercury with selenium
    • Iwata H., Masukawa T., Kito H., Mayashi M. Involvement of tissue sulfydryls in the formation of a complex of methylmercury with selenium. Biochem Pharmacol. 30:(23):1981;3159-3163
    • (1981) Biochem Pharmacol , vol.30 , Issue.23 , pp. 3159-3163
    • Iwata, H.1    Masukawa, T.2    Kito, H.3    Mayashi, M.4
  • 38
    • 0023637052 scopus 로고
    • Trace elements intake in the Faroe Islands I: Element levels in edible parts of pilot whales (Globicephalus meleanus)
    • Julshamn K., Andersen A., Ringdale O., Mørkøre J. Trace elements intake in the Faroe Islands I: element levels in edible parts of pilot whales (Globicephalus meleanus). Sci Total Environ. 65:1987;53-62
    • (1987) Sci Total Environ , vol.65 , pp. 53-62
    • Julshamn, K.1    Andersen, A.2    Ringdale, O.3    Mørkøre, J.4
  • 40
    • 5044245447 scopus 로고    scopus 로고
    • Human exposure to contaminants in traditional Greenland diet
    • Johansen P, Muir DCG, Asmund G, Riget F. Human exposure to contaminants in traditional Greenland diet. Sci Tot Environ (this issue); pp. 189-206
    • Sci Tot Environ , Issue.THIS ISSUE , pp. 189-206
    • Johansen, P.1    Muir, D.C.G.2    Asmund, G.3    Riget, F.4
  • 41
    • 0026143040 scopus 로고
    • Mercury contamination of the Harbour porpoise, Phocoena phocoena, and other cetaceans from the North Sea and the Kattegat
    • Joiris C.R., Holsbeek L., Bouquegneau J.M., Bossicart M. Mercury contamination of the Harbour porpoise, Phocoena phocoena, and other cetaceans from the North Sea and the Kattegat. Water, Air Soil Pollut. 56:1991;283-293
    • (1991) Water, Air Soil Pollut , vol.56 , pp. 283-293
    • Joiris, C.R.1    Holsbeek, L.2    Bouquegneau, J.M.3    Bossicart, M.4
  • 43
    • 0026614481 scopus 로고
    • Organochlorine contaminants in narwhal (Monodon monoceros) from the Canadian Arctic
    • Muir D.C.G., Ford C.A., Grift N.P., Stewart R.E.A., Bidleman T.F. Organochlorine contaminants in narwhal (Monodon monoceros) from the Canadian Arctic. Environ Pollut. 75:(3):1992;307-316
    • (1992) Environ Pollut , vol.75 , Issue.3 , pp. 307-316
    • Muir, D.C.G.1    Ford, C.A.2    Grift, N.P.3    Stewart, R.E.A.4    Bidleman, T.F.5
  • 44
    • 0023753730 scopus 로고
    • Organochloride chemical and heavy metal contaminants in White-beaked dolphins (Lagenorhynchus albirostris) and Pilot whales (Globicephala melaena) from the coast of Newfoundland, Canada
    • Muir D.C.G., Wagemann R., Grift N.P., Norstrom R.J., Simon M., Lien J. Organochloride chemical and heavy metal contaminants in White-beaked dolphins (Lagenorhynchus albirostris) and Pilot whales (Globicephala melaena) from the coast of Newfoundland, Canada. Arch Environ Contam Toxicol. 17:1988;613-629
    • (1988) Arch Environ Contam Toxicol , vol.17 , pp. 613-629
    • Muir, D.C.G.1    Wagemann, R.2    Grift, N.P.3    Norstrom, R.J.4    Simon, M.5    Lien, J.6
  • 47
    • 8544234482 scopus 로고    scopus 로고
    • Differences in fatty acid composition of blubber in minke whales (Balaenoptera acutorostrata) from Greenland and the NE Atlantic
    • Møller P., Born E.W., Dietz R., Ruzzante D., Haug T., Øien N. Differences in fatty acid composition of blubber in minke whales (Balaenoptera acutorostrata) from Greenland and the NE Atlantic. J Cetacean Res. 5:(2):2003;115-124
    • (2003) J Cetacean Res , vol.5 , Issue.2 , pp. 115-124
    • Møller, P.1    Born, E.W.2    Dietz, R.3    Ruzzante, D.4    Haug, T.5    Øien, N.6
  • 48
    • 0025082270 scopus 로고
    • Distributional pattern of zinc, Cd, mercury, and selenium in livers of hooded seal (Cystophora cristata)
    • Nielsen C.O., Dietz R. Distributional pattern of zinc, Cd, mercury, and selenium in livers of hooded seal (Cystophora cristata). Biol Trace Elem Res. 24:1990;61-71
    • (1990) Biol Trace Elem Res , vol.24 , pp. 61-71
    • Nielsen, C.O.1    Dietz, R.2
  • 50
    • 0030620757 scopus 로고    scopus 로고
    • Population structure and seasonal movements of narwhals, Monodon monoceros, determined from mtDNA analysis
    • Palsbøll P.J., Heide-Jørgensen M.-P., Dietz R. Population structure and seasonal movements of narwhals, Monodon monoceros, determined from mtDNA analysis. Heredity. 78:1997;284-292
    • (1997) Heredity , vol.78 , pp. 284-292
    • Palsbøll, P.J.1    Heide-Jørgensen, M.-P.2    Dietz, R.3
  • 51
    • 0027840547 scopus 로고
    • Cadmium, mercury, selenium, copper and zinc in harbour porpoise (Phocoena phocoena) from West Greenland
    • Paludan-Müller P., Agger C.T., Dietz R., Kinze C.C. Cadmium, mercury, selenium, copper and zinc in harbour porpoise (Phocoena phocoena) from West Greenland. Polar Biol. 13:1993;311-320
    • (1993) Polar Biol , vol.13 , pp. 311-320
    • Paludan-Müller, P.1    Agger, C.T.2    Dietz, R.3    Kinze, C.C.4
  • 53
    • 8544249365 scopus 로고    scopus 로고
    • Spatial and temporal trends of contaminants in Greenland terrestrial, fresh water and marine biota: An update
    • Riget F., Dietz R, Vorkamp K, Johansen P, Muir D. Spatial and temporal trends of contaminants in Greenland terrestrial, fresh water and marine biota: an update. Sci Total Environ (this issue)
    • Sci Total Environ , Issue.THIS ISSUE
    • Riget, F.1    Dietz, R.2    Vorkamp, K.3    Johansen, P.4    Muir, D.5
  • 54
    • 8544221347 scopus 로고    scopus 로고
    • SAS, 1999. SAS Institute Inc., Version 8, 2nd ed, North Carolina
    • SAS, 1999. SAS Institute Inc., Version 8, 2nd ed, North Carolina
  • 56
    • 0001215728 scopus 로고
    • PCB's and other organochlorine contaminants in white whales (Delphinapterus leucas) from West Greenland: Variations with age and sex
    • Stern G.A., Muir D.C.G., Segstro M.D., Dietz R., Heide-Jørgensen M.P. PCB's and other organochlorine contaminants in white whales (Delphinapterus leucas) from West Greenland: variations with age and sex. Meddr Grønland, Biosci. 39:1994;245-259
    • (1994) Meddr Grønland, Biosci , vol.39 , pp. 245-259
    • Stern, G.A.1    Muir, D.C.G.2    Segstro, M.D.3    Dietz, R.4    Heide-Jørgensen, M.P.5
  • 58
    • 0037029107 scopus 로고    scopus 로고
    • Inferring ecological separation from regional differences in radioactive caesium in harbour porpoises Phocoena phocoena
    • Tolley K.A., Heldal H.E. Inferring ecological separation from regional differences in radioactive caesium in harbour porpoises Phocoena phocoena. Mar Ecol Prog Ser. 228:2002;301-309
    • (2002) Mar Ecol Prog Ser , vol.228 , pp. 301-309
    • Tolley, K.A.1    Heldal, H.E.2
  • 59
    • 0001208084 scopus 로고
    • Heavy metals in tissues and organs of narwhals (Monodon monoceros)
    • Wagemann R., Snow N.B., Lutz A., Scott D.P. Heavy metals in tissues and organs of narwhals (Monodon monoceros). Can J Fish Aquat Sci. 40:1983;206-214
    • (1983) Can J Fish Aquat Sci , vol.40 , pp. 206-214
    • Wagemann, R.1    Snow, N.B.2    Lutz, A.3    Scott, D.P.4
  • 60
    • 0000654436 scopus 로고
    • Heavy metals in tissues of beluga whales from various locations in the Canadian Arctic and the St. Lawrence River
    • Wagemann R., Stewart R.E.A., Beland P., Desjardins C. Heavy metals in tissues of beluga whales from various locations in the Canadian Arctic and the St. Lawrence River. Can Bull Fish Aquat Sci. 224:1990;191-206
    • (1990) Can Bull Fish Aquat Sci , vol.224 , pp. 191-206
    • Wagemann, R.1    Stewart, R.E.A.2    Beland, P.3    Desjardins, C.4
  • 61
    • 0029661352 scopus 로고    scopus 로고
    • Overview and regional and temporal differences of heavy metals in Arctic whales and ringed seals in the Canadian Arctic
    • Wagemann R., Innis S., Richard P.R. Overview and regional and temporal differences of heavy metals in Arctic whales and ringed seals in the Canadian Arctic. Sci Total Environ. 186:(1,2):1996;41-67
    • (1996) Sci Total Environ , vol.186 , Issue.1-2 , pp. 41-67
    • Wagemann, R.1    Innis, S.2    Richard, P.R.3
  • 62
    • 0001872995 scopus 로고    scopus 로고
    • Chapter 7: Heavy metals
    • Unpublished cited in: Dietz, R, Pacyna J, Thomas DJ, Asmund G, Gordeev V, Johansen P, Kimstach V, Lockhart L, Pfirman SL, Riget FF, Shaw G, Wagemann R, White M. Arctic Monitoring and Assessment Programme. Oslo, Norway
    • Wagemann, R. Unpublished cited in: Dietz, R, Pacyna J, Thomas DJ, Asmund G, Gordeev V, Johansen P, Kimstach V, Lockhart L, Pfirman SL, Riget FF, Shaw G, Wagemann R, White M. Chapter 7: Heavy metals. In: AMAP Assessment Report: Arctic Pollution Issues. Arctic Monitoring and Assessment Programme. Oslo, Norway 1998; pp. 373-524
    • (1998) AMAP Assessment Report: Arctic Pollution Issues , pp. 373-524
    • Wagemann, R.1


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