Skip to main content

Advertisement

Log in

Trace Element Concentrations in Livers of Polar Bears from Two Populations in Northern and Western Alaska

  • Published:
Archives of Environmental Contamination and Toxicology Aims and scope Submit manuscript

Abstract

Concentrations of 20 trace elements (V, Cr, Mn, Co, Cu, Zn, Rb, Sr, Mo, Ag, Cd, In, Sn, Sb, Cs, Ba, Hg, Tl, Pb, and Bi) were measured in livers of polar bears (Ursus maritimus) collected from Northern and Western Alaska from 1993 to 2002 to examine differences in the profiles of trace metals between the Beaufort Sea (Northern Alaska) and the Chukchi Sea (Western Alaska) subpopulations in Alaska. Among the trace elements analyzed, concentrations of Cu (50–290 µg/g, dry wt) in polar bear livers were in the higher range of values that have been reported for marine mammals. Concentrations of Hg in polar bears varied widely, from 3.5 to 99 µg/g dry wt, and the mean concentrations in polar bears were comparable to concentrations reported previously for several other species of marine mammals. Mean concentrations of Pb and Cd were 0.67 and 1.0 µg/g dry wt, respectively; these concentrations were lower than levels reported elsewhere for polar bears from Greenland and Canada. Age- and gender-related variations in the concentrations of trace elements in our polar bears were minimal. Concentrations of Hg decreased slowly in samples collected during 1993–2002, whereas Cd and Pb concentrations were found to be stable or slowly increasing, in the livers of Alaskan polar bears. Concentrations of Ag, Bi, Ba, Cu, and Sn were significantly higher in the Chukchi Sea subpopulation than in the Beaufort Sea subpopulation. Concentrations of Hg were significantly higher in the Beaufort Sea subpopulation than in the Chukchi Sea subpopulation. Differences in the profiles and concentrations of Hg, Ag, Bi, Ba, Cu, and Sn suggest that the sources of exposure to these trace elements between Western and Northern Alaskan polar bears are different, in agreement with findings reported earlier for several organic contaminants.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

References

  • Agusa T, Matsumoto T, Ikemoto T, Anan Y, Kubota R, Yasunaga G, Kunito T, Tanabe S, Ogi H, Shibata Y (2005) Body distribution of trace elements in black-tailed gulls from Rishiri Island, Japan: age-dependent accumulation and transfer to feathers and eggs. Environ Toxicol Chem 24:2107–2120

    Article  CAS  Google Scholar 

  • AMAP (2005) AMAP Assessment 2002: Heavy metals in the Arctic. Arctic Monitoring and Assessment Programme (AMAP), Oslo, Norway

    Google Scholar 

  • Amstrup SC, McDonald TL, Durner GM (2004) Using satellite radiotelemetry data to delineate and manage wildlife populations. Wildlife Soc Bull 32:661–679

    Article  Google Scholar 

  • Amstrup SC, Durner GM, Stirling I, McDonald TL (2005) Allocating harvests among polar bear stocks in the Beaufort Sea. Arctic 58:247–259

    Google Scholar 

  • Anan Y, Kunito T, Ikemoto T, Kubota R, Watanabe I, Tanabe S, Miyazaki N, Petrov EA (2002) Elevated concentrations of trace elements in Caspian seals (Phoca caspica) found stranded during the mass mortality events in 2000. Arch Environ Contam Toxicol 42:354–362

    Article  CAS  Google Scholar 

  • Anan Y, Kunito T, Watanabe I, Sakai H, Tanabe S (2001) Trace element accumulation in hawksbill turtle (Eretmochelys imbricata) and green turtle (Chelonia mydas) from Yaeyama Islands, Japan. Environ Toxicol Chem 20:2802–2814

    Article  CAS  Google Scholar 

  • Asante KA, Agusa T, Subramanian A, Ansa-Asare OD, Biney CA, Tanabe S (2007) Contamination status of arsenic and other trace elements in drinking water and residents from Tarkwa, a historic mining township in Ghana. Chemosphere 66:1513–1522

    Article  CAS  Google Scholar 

  • Becker PR, Mackey EA, Schantz MM, Greenberg RR, Koster BJ, Wise SA, Muir DCG (1995) Concentrations of chlorinated hydrocarbons, heavy metals and other elements in tissues banked by the Alaska Marine Mammal Tissue Archival Project, NISTIR 5620, National Institute of Standards and Technology, Gaithersburg, MD

  • Braune BM, Mallory ML, Gilchrist HG (2006) Elevated mercury levels in a declining population of ivory gulls in the Canadian Arctic. Marine Pollut Bull 52:969–987

    Article  CAS  Google Scholar 

  • Bustamante P, Garrigue C, Breau L, Caurant F, Dabin W, Greaves J, Dodemont R (2003) Trace elements in two odontocete species (Kogia breviceps and Globicephala macrorhynchus) stranded in New Caledonia (South Pacific). Environ Pollut 124:263–271

    Article  CAS  Google Scholar 

  • Calvert W, Ramsay M (1998) Evaluation of age determination of polar bears by counts of cementum growth layer groups. Ursus 10:449–453

    Google Scholar 

  • Das K, Debacker V, Bouquegneau JM (2000) Metallothioneins in marine mammals. Cell Mol Biol 46:283–294

    CAS  Google Scholar 

  • Das K, Holsbeek L, Browning J, Siebert U, Birkun A Jr, Bouquegneau J-M (2004) Trace metal and stable isotope measurements (δ13C and δ15N) in the harbour porpoise Phocoena phocoena relicta from the Black Sea. Environ Pollut 131:197–204

    Article  CAS  Google Scholar 

  • Dietz R, Riget F, Born EW (2000a) Geographical differences in zinc, cadmium, mercury and selenium in polar bears (Ursus maritimus) from Greenland. Sci Total Environ 245:25–47

    Article  CAS  Google Scholar 

  • Dietz R, Riget F, Born EW (2000b) An assessment of selenium to mercury in Greenland marine mammals. Sci Total Environ 245:15–24

    Article  CAS  Google Scholar 

  • Dietz R, Riget F, Born EW, Sonne C, Grandjean P, Kirkegaard M, Olsen MT, Asmund G, Renzoni A, Baagoe H, Andreasen C (2006) Trends in mercury in hair of Greenlandic polar bears (Ursus maritimus) during 1892–2001. Environ Sci Technol 40:1120–1125

    Article  CAS  Google Scholar 

  • Evans TJ, Fischbach A, Schliebe S, Manly B, Kalxdorff S, York G (2003) Polar bear aerial survey in the eastern Chukchi Sea: a pilot study. Arctic 56:359–366

    Google Scholar 

  • Gerlach SC, Duffy LK, Murray MS, Bowers PM, Adams R, Verbrugge DA (2006) An exploratory study of total mercury levels in archaeological caribou hair from northwest Alaska. Chemosphere 65:1909–1914

    Article  CAS  Google Scholar 

  • Ichihashi H, Kohno H, Kannan K, Tsumura A, Yamasaki S (2001) Multielemental analysis of purpleback flying squid using high resolution inductively coupled plasma–mass spectrometry (HRICP-MS). Environ Sci Technol 35:3103–3108

    Article  CAS  Google Scholar 

  • Ikemoto T, Kunito T, Watanabe I, Yasunaga G, Baba N, Miyazaki N, Petrov EA, Tanabe S (2004) Comparison of trace element accumulation in Baikal seals (Pusa sibirica), Caspian seals (Pusa caspica) and northern fur seals (Callorhinus ursinus). Environ Pollut 127:83–97

    Article  CAS  Google Scholar 

  • Kannan K, Agusa T, Perrotta E, Thomas NJ, Tanabe S (2006) Comparison of trace element concentrations in livers of diseased, emaciated, and non-diseased southern sea otters from the California coast. Chemosphere 65:2160–2167

    Article  CAS  Google Scholar 

  • Kannan K, Yun SH, Evans TJ (2005) Chlorinated, brominated and perfluorinated contaminants in livers of polar bears from Alaska. Environ Sci Technol 39:9057–9063

    Article  CAS  Google Scholar 

  • Kunito T, Nakamura S, Ikemoto T, Anan Y, Kubota R, Tanabe S, Rosas FCW, Fillmann G, Readman JW (2004) Concentration and subcellular distribution of trace elements in liver of small cetaceans incidentally caught along the Brazilian coast. Marine Pollut Bull 49:574–587

    Article  CAS  Google Scholar 

  • Kunito T, Watanabe I, Yasunaga G, Fujise Y, Tanabe S (2002) Using trace elements in skin to discriminate the populations of minke whales in southern hemisphere. Marine Environ Res 53:175–197

    Article  CAS  Google Scholar 

  • Lam JCW, Tanabe S, Chan SKF, Yuen EKW, Lam MHW, Lam PKS (2004) Trace element residues in tissues of green turtles (Chelonia mydas) from South China waters. Marine Pollut Bull 48:164–192

    Article  CAS  Google Scholar 

  • Law RJ (1996) Metals in marine mammals. In: Beyer WN, Heinz GH, Redmon-Norwood AW (eds) Environmental contaminants in wildlife: Interpreting tissue concentrations. CRC Press, Boca Raton, FL, pp 357–376

    Google Scholar 

  • Law RJ, Jones BR, Baker JR, Kennedy S, Milne R, Morris RJ (1992) Trace metals in the livers of marine mammals from the Welch coast and Irish Sea. Marine Pollut Bull 24:296–304

    Article  CAS  Google Scholar 

  • Law RJ, Morris RJ, Allchin CR, Jones BR, Nicholson MD (2003) Metals and organochlorines in small cetaceans stranded on the east coast of Australia. Marine Pollut Bull 46:1200–1211

    Article  CAS  Google Scholar 

  • Leitch DR, Carrie J, Lean D, Macdonald RW, Stern GA, Wang F (2007) The delivery of mercury to the Beaufort Sea of the Arctic Ocean by the Mackenzie River. Sci Total Environ 373:178–195

    Article  CAS  Google Scholar 

  • Mackey EA, Oflaz RD, Epstein MS, Buehler B, Porter BJ, Rowles T, Wise SA, Becker PR (2003) Elemental composition of liver and kidney tissues of rough-toothed dolphins (Steno bredanensis). Arch Environ Contam Toxicol 44:523–532

    Article  CAS  Google Scholar 

  • Meador JP, Ernest D, Hohn AA, Tilbury K, Gorzelany J, Worthy G, Stein JE (1999) Comparison of elements in bottlenose dolphins stranded on the beaches of Texas and Florida in the Gulf of Mexico over a one-year period. Arch Environ Contam Toxicol 36:87–98

    Article  CAS  Google Scholar 

  • Muir D, Braune B, DeMarch B, Norstrom R, Wagemann R, Lockhart L, Hargrave B, Bright D, Addison R, Payne J, Reimer K (1999) Spatial and temporal trends and effects of contaminants in the Canadian Arctic marine ecosystem: a review. Sci Total Environ 230:83–144

    Article  CAS  Google Scholar 

  • Paludan MP, Agger CT, Dietz R, Kinze CC (1993) Mercury, cadmium, zinc, copper and selenium in habour porpoise (Phocoena phocoena) from west Greenland. Polar Biol 13:311–320

    Article  Google Scholar 

  • Ruelas-Inzunza J, Páez-Osuna F (2002a) Distribution of Cd, Cu, Fe, Mn, Pb and Zn in selected tissues of juvenile whales stranded in the SE Gulf of California (Mexico). Environ Int 28:325–329

    Article  CAS  Google Scholar 

  • Ruelas-Inzunza J, Páez-Osuna F (2002b) Distribution of cadmium, copper, iron, manganese, lead, and zinc in spinner dolphins Stenella longirostris stranded in La Paz Lagoon, Southwest Gulf of California. Bull Environ Contam Toxicol 69:408–414

    Article  CAS  Google Scholar 

  • Senthilkumar K, Kannan K, Corsolini S, Evans T, Giesy JP, Nakanishi J, Masunaga S (2002) Polychlorinated dibenzo-p-dioxins, dibenzofurans and polychlorinated biphenyls in polar bear, penguin and south polar skua. Environ Pollut 119:151–161

    Article  Google Scholar 

  • Szefer P, Zdrojewska I, Jensen J, Lockyer C, Skora K, Kuklik I, Malinga M (2002) Intercomparison studies on distribution and coassociations of heavy metals in liver, kidney, and muscle of harbor porpoise, Phocoena phocoena, from southern Baltic Sea and coastal waters of Denmark and Greenland. Arch Environ Contam Toxicol 42:508–522

    Article  CAS  Google Scholar 

  • Wagemann R, Innes S, Richard PR (1996) Overview and regional and temporal differences of heavy metals in Arctic whales and ringed seals in the Canadian Arctic. Sci Total Environ 186:41–66

    Article  CAS  Google Scholar 

  • Woshner VM, O’Hara TM, Brattton GR, Beasley VR (2001) Concentrations and interactions of selected essential and non-essential elements in ringed seals and polar bears of Arctic Alaska. J Wildl Dis 37:711–721

    CAS  Google Scholar 

  • Zhou JL, Salvador SM, Liu YP, Sequeira M (2001) Heavy metals in the tissues of common dolphins (Delphinus delphis) stranded on the Portugese coast. Sci Total Environ 273:61–76

    Article  CAS  Google Scholar 

Download references

Acknowledgments

A portion of the study was supported by a grant from “21st Century Center for Excellence (COE) Program” from the Ministry of Education, Culture, Sports, Science and Technology, Japan. We thank the native subsistence hunters for providing samples for this study.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Kurunthachalam Kannan.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kannan, K., Agusa, T., Evans, T.J. et al. Trace Element Concentrations in Livers of Polar Bears from Two Populations in Northern and Western Alaska. Arch Environ Contam Toxicol 53, 473–482 (2007). https://doi.org/10.1007/s00244-007-0018-x

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00244-007-0018-x

Keywords

Navigation