earless seals

Summary

Summary: The family Phocidae, suborder PINNIPEDIA, order CARNIVORA, comprising the true seals. They lack external ears and are unable to use their hind flippers to walk. It includes over 18 species including the harp seal, probably the best known seal species in the world.

Top Publications

  1. ncbi The ontogeny of aerobic and diving capacity in the skeletal muscles of Weddell seals
    S B Kanatous
    Department of Biology, Colorado State University, Fort Collins, CO 80523 1878, USA
    J Exp Biol 211:2559-65. 2008
  2. ncbi Another phocine distemper outbreak in Europe
    Trine Jensen
    Seal Rehabilitation and Research Center, Hoofdstraat 94a, NL 9968 AG Pieterburen, Netherlands
    Science 297:209. 2002
  3. ncbi Effects of duodenal seal oil administration in patients with inflammatory bowel disease
    Gulen Arslan
    Division of Gastroenterology, Institute of Medicine, Haukeland University Hospital, N 5021 Bergen, Norway
    Lipids 37:935-40. 2002
  4. pmc Holocene elephant seal distribution implies warmer-than-present climate in the Ross Sea
    B L Hall
    Climate Change Institute and Department of Earth Sciences, University of Maine, Orono, ME 04469, USA
    Proc Natl Acad Sci U S A 103:10213-7. 2006
  5. ncbi Effects of age, size and condition of elephant seals (Mirounga leonina) on their intravenous anaesthesia with tiletamine and zolazepam
    I C Field
    Australian Antarctic Division, Kingston, Tasmania
    Vet Rec 151:235-40. 2002
  6. ncbi Long-range paternal gene flow in the southern elephant seal
    Anna Fabiani
    School of Biological and Biomedical Sciences, Durham University, Durham, DH1 3LE, UK
    Science 299:676. 2003
  7. ncbi Fractal landscape method: an alternative approach to measuring area-restricted searching behavior
    Yann Tremblay
    University of California, Santa Cruz, Long Marine Laboratory, Center for Ocean Health, 100 Shaffer Road, Santa Cruz, CA 95060, USA
    J Exp Biol 210:935-45. 2007
  8. ncbi A long-term seal- and cod-liver-oil supplementation in hypercholesterolemic subjects
    J Brox
    Department of Clinical Chemistry, University Hospital of Tromsø, Norway
    Lipids 36:7-13. 2001
  9. ncbi Resource partitioning through oceanic segregation of foraging juvenile southern elephant seals ( Mirounga leonina)
    Iain C Field
    Antarctic Wildlife Research Unit, School of Zoology, Private Bag 05, Hobart, TAS 7001, Australia
    Oecologia 142:127-35. 2005
  10. pmc Climate change and seal survival: evidence for environmentally mediated changes in elephant seal, Mirounga leonina, pup survival
    Clive R McMahon
    Australian Antarctic Division, Channel HWY, Kingston 7050, Tasmania, Australia
    Proc Biol Sci 272:923-8. 2005

Research Grants

Detail Information

Publications235 found, 100 shown here

  1. ncbi The ontogeny of aerobic and diving capacity in the skeletal muscles of Weddell seals
    S B Kanatous
    Department of Biology, Colorado State University, Fort Collins, CO 80523 1878, USA
    J Exp Biol 211:2559-65. 2008
    ..As these future elite divers mature, their skeletal muscles transform to a more sedentary state in order to maintain the low levels of aerobic metabolism associated with long-duration diving...
  2. ncbi Another phocine distemper outbreak in Europe
    Trine Jensen
    Seal Rehabilitation and Research Center, Hoofdstraat 94a, NL 9968 AG Pieterburen, Netherlands
    Science 297:209. 2002
  3. ncbi Effects of duodenal seal oil administration in patients with inflammatory bowel disease
    Gulen Arslan
    Division of Gastroenterology, Institute of Medicine, Haukeland University Hospital, N 5021 Bergen, Norway
    Lipids 37:935-40. 2002
    ..The results suggest positive effects of seal oil in patients with IBD, especially on IBD-associated joint pain. Further controlled studies are warranted...
  4. pmc Holocene elephant seal distribution implies warmer-than-present climate in the Ross Sea
    B L Hall
    Climate Change Institute and Department of Earth Sciences, University of Maine, Orono, ME 04469, USA
    Proc Natl Acad Sci U S A 103:10213-7. 2006
    ..If, as proposed in the literature, the ice shelf survived this period, it would have been exposed to environments substantially warmer than present...
  5. ncbi Effects of age, size and condition of elephant seals (Mirounga leonina) on their intravenous anaesthesia with tiletamine and zolazepam
    I C Field
    Australian Antarctic Division, Kingston, Tasmania
    Vet Rec 151:235-40. 2002
    ..There were no fatalities, and no periods of apnoea longer than five minutes were recorded. In individual seals there was a significant increase in weighted recovery time with successive captures...
  6. ncbi Long-range paternal gene flow in the southern elephant seal
    Anna Fabiani
    School of Biological and Biomedical Sciences, Durham University, Durham, DH1 3LE, UK
    Science 299:676. 2003
  7. ncbi Fractal landscape method: an alternative approach to measuring area-restricted searching behavior
    Yann Tremblay
    University of California, Santa Cruz, Long Marine Laboratory, Center for Ocean Health, 100 Shaffer Road, Santa Cruz, CA 95060, USA
    J Exp Biol 210:935-45. 2007
    ..The method provides a significant new tool for studies of animals' foraging behavior and habitat selection, because it provides a method to precisely quantify each ARS separately, which is not possible with existing methods...
  8. ncbi A long-term seal- and cod-liver-oil supplementation in hypercholesterolemic subjects
    J Brox
    Department of Clinical Chemistry, University Hospital of Tromsø, Norway
    Lipids 36:7-13. 2001
    ....
  9. ncbi Resource partitioning through oceanic segregation of foraging juvenile southern elephant seals ( Mirounga leonina)
    Iain C Field
    Antarctic Wildlife Research Unit, School of Zoology, Private Bag 05, Hobart, TAS 7001, Australia
    Oecologia 142:127-35. 2005
    ..Such modifications of haul-out timing and behavior enable them to exploit a patchy and unpredictable environment...
  10. pmc Climate change and seal survival: evidence for environmentally mediated changes in elephant seal, Mirounga leonina, pup survival
    Clive R McMahon
    Australian Antarctic Division, Channel HWY, Kingston 7050, Tasmania, Australia
    Proc Biol Sci 272:923-8. 2005
    ..This functional link provides valuable insights that can be used to model the responses of the seal populations to climate change scenarios...
  11. pmc Mass die-Off of Caspian seals caused by canine distemper virus
    S Kennedy
    Department of Agriculture and Rural Development, Belfast, Northern Ireland
    Emerg Infect Dis 6:637-9. 2000
    ..These results implicate canine distemper virus infection as the primary cause of death...
  12. ncbi Organochlorine and organotin compounds in Caspian seals (Phoca caspica) collected during an unusual mortality event in the Caspian Sea in 2000
    N Kajiwara
    Center for Marine Environmental Studies, Ehime University, Tarumi, Matsuyama, Japan
    Environ Pollut 117:391-402. 2002
    ..49 to 17 ng/g on a wet-weight basis and octyltin compounds were below limit of detection in all the samples analyzed, suggesting less contamination by organotin compounds in the Caspian Sea...
  13. ncbi Modeling biomagnification and metabolism of contaminants in harp seals of the Barents Sea
    Alison J Fraser
    Canadian Environmental Modelling Centre, Trent University, Peterborough, Ontario
    Environ Toxicol Chem 21:55-61. 2002
    ....
  14. ncbi Polybrominated diphenyl ether compounds in ringed, bearded, spotted, and ribbon seals from the Alaskan Bering Sea
    Lori T Quakenbush
    Alaska Department of Fish and Game, 1300 College Road, Fairbanks, AK 99701, USA
    Mar Pollut Bull 54:232-6. 2007
  15. ncbi Absorption of decabromodiphenyl ether and other organohalogen chemicals by grey seals (Halichoerus grypus)
    Gareth O Thomas
    Department of Environmental Science, Institute of Environmental and Natural Sciences, Lancaster University, Lancaster LA1 4YQ, UK
    Environ Pollut 133:581-6. 2005
    ..Current understanding of the mechanism of absorption of organohalogen chemicals and the potential for accumulation of decabromodiphenyl ether will need reassessing in the light of these results...
  16. ncbi Enantiomeric specificity of methylsulfonyl-PCBs and distribution of bis(4-chlorophenyl) sulfone, PCB, and DDE methyl sulfones in grey seal tissues
    Christina Larsson
    Department of Environmental Chemistry, Stockholm University, SE 106 91 Stockholm, Sweden
    Environ Sci Technol 38:4950-5. 2004
    ..In the liver, as much as 50% of sigmaMeSO2-PCBs consisted of the second eluting atropisomer (A2) of 5-MeSO2-CB149. The results imply that the sulfone group is crucial for the specific liver retention of MeSO2-PCBs, 3-MeSO2-DDE, and BCPS...
  17. ncbi Blubber and buoyancy: monitoring the body condition of free-ranging seals using simple dive characteristics
    Martin Biuw
    Sea Mammal Research Unit, Gatty Marine Laboratory, University of St Andrews, St Andrews, Fife KY16 8LB, Scotland, UK
    J Exp Biol 206:3405-23. 2003
    ..Our results suggest that this simple method can be used to estimate the changes in lipid content of free-ranging seals while at sea and may help improve our understanding of the foraging strategies of these important marine predators...
  18. ncbi Residues of persistent organochlorine contaminants in southern elephant seals (Mirounga leonina) from Elephant Island, Antarctica
    Kleber C Miranda-Filho
    Programa de Pós Graduação em Oceanografia Biológica, Fundacao Universidade Federal do Rio Grande, Av Itália km 8, 96 201 900 Rio Grande RS, Brazil
    Environ Sci Technol 41:3829-35. 2007
    ..Data showed that concentrations of contaminants generally increased from pups < juveniles < adults and suggested that pups accumulated contaminants through transfer from the mother seals via transplacental and lactational routes...
  19. ncbi Organochlorine burdens in blood of ringed and bearded seals from north-western Svalbard
    K Bang
    Department of Zoology, Norwegian University of Science and Technology, Trondheim
    Chemosphere 44:193-203. 2001
    ..OC levels in ringed seals at Svalbard are similar to those reported from the North-American Arctic and in the lower range compared to previously reported data from Svalbard...
  20. ncbi Human plasma levels of POPs, and diet among native people from Uelen, Chukotka
    Torkjel M Sandanger
    Norwegian Institute for Air Research, The Polar Environmental Centre, 9296 Tromsø, Norway
    J Environ Monit 5:689-96. 2003
    ..Transportation of beta-HCH by ocean currents through the Bering Strait into the Arctic Ocean or regional point sources might explain these elevated levels...
  21. ncbi Influence of the temperature gradient in blubber on the bioaccumulation of persistent lipophilic organic chemicals in seals
    Gertje Czub
    Department of Applied Environmental Science ITM, Stockholm University, SE 106 91 Stockholm, Sweden
    Environ Toxicol Chem 26:1600-5. 2007
    ..This work indicates that the temperature gradient in the blubber has an impact on the bioaccumulation of persistent lipophilic organic pollutants in seals and in marine mammals in general...
  22. ncbi Hexachlorocyclohexane (HCH) isomers and chiral signatures of alpha-HCH in the Arctic marine food web of the Northwater Polynya
    J Moisey
    National Wildlife Research Centre, Environment Canada, Hull, PQ, Canada, K1A 0H3
    Environ Sci Technol 35:1920-7. 2001
    ..9. EFs of alpha-HCH and the proportion of beta-HCH in sigma-HCH in the food web were highly correlated (r2 = 0.92) suggesting that EFs were a good indicator of a species capability to biotransform alpha-HCH...
  23. ncbi Human exposure to contaminants in the traditional Greenland diet
    Poul Johansen
    Department of Arctic Environment, National Environmental Research Institute, Frederiksborgvej 399, DK 4000 Roskilde, Denmark
    Sci Total Environ 331:189-206. 2004
    ..This will result in a reduction of the intake of the amount of traditional food of only 24-25%, and it is not likely that this changed diet will result in deficiency of minerals, vitamins or other nutritional compounds...
  24. ncbi Polybrominated diphenyl ethers and selected organochlorine chemicals in grey seals (Halichoerus grypus) in the North Sea
    O I Kalantzi
    Department of Environmental Science, IENS, Lancaster University, Lancaster LA1 4YQ, UK
    Chemosphere 58:345-54. 2005
    ..Significant differences (P<0.01) were also found between the different seasons in 1999 newly weaned and juvenile seals, reflecting changes in blubber mass...
  25. ncbi Exponential increases of the brominated flame retardants, polybrominated diphenyl ethers, in the Canadian Arctic from 1981 to 2000
    Michael G Ikonomou
    Institute of Ocean Sciences, Department of Fisheries and Oceans Canada, Sidney, British Columbia
    Environ Sci Technol 36:1886-92. 2002
    ....
  26. ncbi Trophic relationships in an Arctic food web and implications for trace metal transfer
    Larissa A Dehn
    Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, Alaska 99775 7000, USA
    Sci Total Environ 362:103-23. 2006
    ..Metal deposition in animal tissues is strongly dependent on biological factors such as diet, age, sex, body condition and health, and caution should be taken when interpreting magnification of dynamic and actively regulated trace metals...
  27. ncbi Polychlorinated biphenyls, dioxins, and furans in weaned, free-ranging northern elephant seal pups from central California, USA
    Cathy Debier
    Unite de Biochimie de la Nutrition, Universite Catholique de Louvain, Croix du Sud 2 8, B 1348 Louvain la Neuve, Belgium
    Environ Toxicol Chem 24:629-33. 2005
    ..Our results suggest that NES pups, in contrast to pups of other pinnipeds in the eastern Pacific Ocean, are exposed to low levels of persistent organic pollutants, reflecting an open ocean signal...
  28. ncbi Preliminary screening of perfluorooctane sulfonate (PFOS) and other fluorochemicals in fish, birds and marine mammals from Greenland and the Faroe Islands
    Rossana Bossi
    National Environmental Research Institute, Frederiksborgvej 399, 4000 Roskilde, Denmark
    Environ Pollut 136:323-9. 2005
    ....
  29. ncbi Chemical speciation of arsenic in the livers of higher trophic marine animals
    Reiji Kubota
    Center for Marine Environmental Studies, Ehime University, Matsuyama, Japan
    Mar Pollut Bull 45:218-23. 2002
    ..To our knowledge, this is the first report on the large variation in the composition of arsenic species in liver of marine mammals and sea turtles...
  30. ncbi PCBs and OCPs in male harbour, grey, harp and hooded seals from the Estuary and Gulf of St Lawrence, Canada
    Karen E Hobbs
    Maurice Lamontagne Institute, Department of Fisheries and Oceans, Mont Joli, QC, Canada
    Sci Total Environ 296:1-18. 2002
    ....
  31. ncbi Influence of trophic position on organochlorine concentrations and compositional patterns in a marine food web
    Anders Ruus
    University of Oslo, Institute of Biology, Department of Marine Zoology and Marine Chemistry, Norway
    Environ Toxicol Chem 21:2356-64. 2002
    ..The information provided may be important for future modeling of the fate of organochlorine contaminants in marine food webs...
  32. ncbi Levels of polybrominated diphenyl ether (PBDE) flame retardants in animals representing different trophic levels of the North Sea food Web
    Jan P Boon
    Royal Netherlands Institute for Sea Research NIOZ, P O Box 59, 1790 AB Den Burg, Texel, The Netherlands
    Environ Sci Technol 36:4025-32. 2002
    ..This has serious consequences for the route of elimination of POPs, since their elimination from the blood into the ambient seawater via the gill-membrane is no longer possible...
  33. ncbi Factors influencing activities of biotransformation enzymes, concentrations and compositional patterns of organochlorine contaminants in members of a marine food web
    Anders Ruus
    University of Oslo, Institute of Biology, Department of Marine Zoology and Marine Chemistry, PO Box 1064, Blindern, N 0316 Oslo, Norway
    Aquat Toxicol 61:73-87. 2002
    ..In seals, concentrations and compositional patterns of the OCs vary with age, owing to selective transfer from mother to pup in utero and mainly through lactation, but likely also due to age specific xenobiotic metabolising capacity...
  34. ncbi Thyroid hormone status in gray seal (Halichoerus grypus) pups from the Baltic Sea and the Atlantic Ocean in relation to organochlorine pollutants
    Eugen Gravningen Sørmo
    Department of Biology, Norwegian University of Science and Technology, NO 7491 Trondheim, Norway
    Environ Toxicol Chem 24:610-6. 2005
    ....
  35. ncbi Blood is a poor substrate for monitoring pollution burdens in phocid seals
    Christian Lydersen
    Norwegian Polar Institute, Tromsø
    Sci Total Environ 292:193-203. 2002
    ....
  36. ncbi Polychlorinated naphthalenes and coplanar polychlorinated biphenyls in beluga whale (Delphinapterus leucas) and ringed seal (Phoca hispida) from the eastern Canadian Arctic
    Paul A Helm
    Chemical Engineering and Applied Chemistry, University of Toronto, Ontario, Canada
    Environ Pollut 119:69-78. 2002
    ..Although average sigmaPCN concentrations were less than 1% of sigmaCoplPCBs, PCNs contribute up to 11% of TEQ relative to the coplanar PCBs based on TEFs determined by H4IIE enzyme assays...
  37. ncbi Global distribution of halogenated dimethyl bipyrroles in marine mammal blubber
    S Tittlemier
    Centre for Analytical and Environmental Chemistry, Carleton University, Ottawa, Ontario, Canada
    Arch Environ Contam Toxicol 43:244-55. 2002
    ..These results imply that HDBPs and anthropogenic organohalogens have different sources and support the natural production hypothesis...
  38. ncbi Indication of geographic variaritions of organochlorine concentrations in the blubber of Antarctic Weddell seals (Leptonychotes weddelli)
    Walter Vetter
    Institute of Food Chemistry, University of Hohenheim, Garbenstrasse 28, D 70599 Stuttgart, Germany
    Environ Sci Technol 37:840-4. 2003
    ....
  39. ncbi Organochlorine concentrations in the Saimaa ringed seal (Phoca hispida saimensis) from Lake Haukivesi, Finland, 1981 to 2000, and in its diet today
    Auli Kostamo
    Department of Biology, University of Joensuu, Finland
    Environ Toxicol Chem 21:1368-76. 2002
    ..Biomagnification was considerably higher from fish to the ringed seal than from prey fish to pike because of higher feeding rate of ringed seals and differences in the metabolisms of these animals...
  40. ncbi Bioaccumulation of PCBs and chlorinated pesticides in seals, fishes and invertebrates from the White Sea, Russia
    Derek Muir
    National Water Research Institute, Environment Canada, Burlington, ON, Canada L7R 4A6
    Sci Total Environ 306:111-31. 2003
    ....
  41. ncbi Temporal trends of persistent organochlorine contamination in Russia: a case study of Baikal and Caspian Seal
    Shinsuke Tanabe
    Center for Marine Environmental Studies, Ehime University, Tarumi 3 5 7, Matsuyama, 790 8566, Japan
    Arch Environ Contam Toxicol 44:533-45. 2003
    ..Residue concentrations of OCs have increased in Ganges River dolphins from 1989-92 to 1994-96, suggesting that tropical, developing countries are potential emission source of OCs...
  42. ncbi Persistent organic pollutant patterns in grey seals (Halichoerus grypus)
    O Roots
    Estonian Environmental Research Centre, Marja 4D, 10 617 Tallinn, Estonia
    Chemosphere 60:914-21. 2005
    ..The patterns differ between juveniles and adult animals, but the gender of adults and geography do not appear to play a role...
  43. ncbi Levels and temporal trends of HCH isomers in ringed seals from West and East Greenland
    Frank Riget
    National Environmental Research Institute, University of Aarhus, Frederiksborgvej 399, DK 4000 Roskilde, Denmark
    J Environ Monit 10:935-40. 2008
    ..Similar levels and trends in East and West Greenland support the general understanding of the pathways of HCH isomers to and in the Arctic...
  44. ncbi Recent contamination by persistent organochlorines in Baikal seal (Phoca sibirica) from Lake Baikal, Russia
    Oyuna Tsydenova
    Baikal Institute of Nature Management, Sakhyanova St, 6 Ulan Ude, Buryatia 670047, Russia
    Mar Pollut Bull 48:749-58. 2004
    ....
  45. ncbi Perfluorinated chemicals infiltrate ocean waters: link between exposure levels and stable isotope ratios in marine mammals
    Kristin Inneke Van de Vijver
    Department of Biology, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium
    Environ Sci Technol 37:5545-50. 2003
    ....
  46. ncbi Dietary composition in Greenland 2000, plasma fatty acids and persistent organic pollutants
    Bente Deutch
    Centre of Arctic Environmental Medicine, Aarhus University, Vennelyst Boulevard 6, DK 8000, Aarhus, Denmark
    Sci Total Environ 331:177-88. 2004
    ..Seal and polar bear intake, and in particular all the plasma n-3 fatty acids, were significantly correlated with organic contaminant concentrations, (betaHCH, chlordanes, DDTs, Hexachlorobenzene, Mirex, PCBs, and toxaphenes) P<0.01**...
  47. ncbi Chlorobenzenes, chlorinated pesticides, coplanar chlorobiphenyls and other organochlorine compounds in Greenland biota
    Katrin Vorkamp
    Department of Environmental Chemistry and Microbiology, National Environmental Research Institute, Frederiksborgvej 399, Roskilde, Denmark
    Sci Total Environ 331:157-75. 2004
    ..OCS, HCBD and PCA were detected in biota from Greenland, although at very low concentrations. OCS seems to have the widest occurrence and the highest potential for biomagnification of the three compounds analysed...
  48. ncbi Food web magnificaton of persistent organic pollutants in poikilotherms and homeotherms
    Haakon Hop
    Norwegian Polar Institute, Tromsø
    Environ Sci Technol 36:2589-97. 2002
    ..The Barents Sea FWMFs were generally comparable to those determined for marine food webs with similar food chain lengths in the Canadian Arctic...
  49. ncbi Harbor seals (Phoca vitulina) in British Columbia, Canada, and Washington State, USA, reveal a combination of local and global polychlorinated biphenyl, dioxin, and furan signals
    Peter S Ross
    Institute of Ocean Sciences, Fisheries and Oceans Canada, 9860 West Saanich Road, P O Box 6000, Sidney, British Columbia V8L 4B2, Canada
    Environ Toxicol Chem 23:157-65. 2004
    ....
  50. ncbi Toxicokinetics of PCDD, PCDF, and coplanar PCB congeners in Baikal seals, Pusa sibirica: age-related accumulation, maternal transfer, and hepatic sequestration
    Hisato Iwata
    Center for Marine Environmental Studies, Ehime University, Bunkyo cho 2 5, Matsuyama, Japan
    Environ Sci Technol 38:3505-13. 2004
    ..These results indicate that congener profile in Baikal seals is governed by complex factors including sex, tissue concentration, binding to CYP, and rates of absorption and metabolism/excretion...
  51. ncbi Increasing levels and biomagnification of persistent organic pollutants (POPs) in Antarctic biota
    Helmut Goerke
    Alfred Wegener Institut fur Polar und Meeresforschung, Postfach 120161, D 27515 Bremerhaven, Germany
    Mar Pollut Bull 48:295-302. 2004
    ....
  52. ncbi Polybrominated diphenyl ethers and organochlorine compounds in biota from the marine environment of East Greenland
    Katrin Vorkamp
    Department of Environmental Chemistry and Microbiology, National Environmental Research Institute, Frederiksborgvej 399, Roskilde, Denmark
    Sci Total Environ 331:143-55. 2004
    ..g. BDE28 and BDE47 than black guillemots. The reasons for these different accumulation patterns are largely unknown and may reflect species-related differences in pollutant exposure, bioavailablity and metabolism...
  53. ncbi Total blubber burden of organochlorine pollutants in phocid seals; methods and suggested standardization
    L Kleivane
    National Veterinary Institute, P O Box 8156 Dep, Oslo 1 N 0033, Norway
    Sci Total Environ 320:109-19. 2004
    ....
  54. ncbi Bis(4-chlorophenyl) sulfone (BCPS) in Swedish marine and fresh water wildlife-a screening study
    Karin Norstrom
    Department of Environmental Chemistry, Stockholm University, SE 106 91, Stockholm, Sweden
    Environ Int 30:667-74. 2004
    ..However, the guillemot has levels in the low ppm range indicating a considerable biomagnification of BCPS in this species...
  55. ncbi Levels and spatial and temporal trends of contaminants in Greenland biota: an updated review
    F Riget
    National Environmental Research Institute, Frederiksborgvej 399, P O Box 358, DK 400, Roskilde, Denmark
    Sci Total Environ 331:29-52. 2004
    ..Increasing trends of SigmaDDT from 1994 until now were found in both sexes of seals as well as in male sculpins from central West Greenland...
  56. ncbi Congener pattern of hexabromobiphenyls in marine biota from different proveniences
    Roland von der Recke
    University of Hohenheim, Institute of Food Chemistry 170b, Stuttgart, Germany
    Sci Total Environ 393:358-66. 2008
    ..Finally, it is evident from this study that a global ban of PBBs should not only be restricted to hexabromobiphenyls, but also needs to include higher brominated mixtures...
  57. ncbi Organochlorines in the free-ranging Hawaiian monk seal (Monachus schauinslandi) from French Frigate Shoals, North Pacific Ocean
    Maia K Willcox
    Department of Molecular Biosciences and Bioengineering, University of Hawaii, Honolulu, HI 96822, USA
    Sci Total Environ 322:81-93. 2004
    ..Although it is clear that the Hawaiian monk seal has been exposed to OCs, it is unclear what biological effects, if any, these xenobiotics may have on the animals...
  58. ncbi Trophic transfer of persistent organochlorine contaminants (OCs) within an Arctic marine food web from the southern Beaufort-Chukchi Seas
    P F Hoekstra
    Department of Environmental Biology, University of Guelph, Guelph, ON, Canada N1G 2W1
    Environ Pollut 124:509-22. 2003
    ....
  59. ncbi Congener-specific accumulation and food chain transfer of polybrominated diphenyl ethers in two arctic food chains
    Hans Wolkers
    Norwegian Polar Institute, N 9296 Tromsø, Norway
    Environ Sci Technol 38:1667-74. 2004
    ..Polar bears are seemingly capable of metabolizing virtually all PBDEs and are therefore unsuitable as indicators for PBDE contamination in the environment...
  60. ncbi Enantiomer-specific biomagnification of alpha-hexachlorocyclohexane and selected chiral chlordane-related compounds within an Arctic marine food web
    Paul F Hoekstra
    University of Guelph, Department of Environmental Biology, Environment Canada, National Water Research Institute, Burlington, Ontario, Canada
    Environ Toxicol Chem 22:2482-91. 2003
    ..However, the modification of EFs from bowhead liver to blubber suggests that this species has the ability to enantioselectively biotransform and accumulate several chiral OC compounds...
  61. ncbi Pinniped phylogeny and a new hypothesis for their origin and dispersal
    Ulfur Arnason
    Department of Cell and Organism Biology, Division of Evolutionary Molecular Systematics, University of Lund, S 223 62 Lund, Sweden
    Mol Phylogenet Evol 41:345-54. 2006
    ....
  62. ncbi Use of spectral analysis to test hypotheses on the origin of pinnipeds
    G M Lento
    Biochemistry and Genetics Research Group, School of Biological Sciences, Victoria University of Wellington, New Zealand
    Mol Biol Evol 12:28-52. 1995
    ..A more conservative interpretation, however, is that the walrus is an early, but not the first, independent divergence from the common pinniped ancestor...
  63. ncbi A molecular view of pinniped relationships with particular emphasis on the true seals
    U Arnason
    Division of Evolutionary Molecular Systematics, University of Lund, Sweden
    J Mol Evol 40:78-85. 1995
    ..This result stands in contrast to the limited morphological differentiation relative to the pronounced molecular distinctions that may occur within the Phoca complex...
  64. ncbi Energetics of lactation in harp seals (Phoca groenlandica) from the Gulf of St. Lawrence, Canada
    C Lydersen
    Norwegian Polar Institute, , Norway
    J Comp Physiol B 166:295-304. 1996
    ....
  65. ncbi Giardia and Cryptosporidium in harp and hooded seals from the Gulf of St. Lawrence, Canada
    A J Appelbee
    World Health Organization Collaborating Centre for the Molecular Epidemiology of Parasitic Infections, Division of Health Sciences, School of Veterinary and Biomedical Sciences, Murdoch University, Murdoch, WA 6150, Australia
    Vet Parasitol 173:19-23. 2010
    ..Cryptosporidium was not detected by microscopy, nor using the PCR technique on intestinal tissues from any of the 68 seals examined...
  66. ncbi Chemical characterisation of the oligosaccharides in hooded seal (Cystophora cristata) and Australian fur seal (Arctocephalus pusillus doriferus) milk
    T Urashima
    Department of Bioresource Science, Obihiro University of Agriculture and Veterinary Medicine, Inada cho, Obihiro, Hokkaido 080 8555, Japan
    Comp Biochem Physiol B Biochem Mol Biol 128:307-23. 2001
    ..These results, therefore, support the hypothesis that the milk of otariids, unlike that of phocids, contains no free reducing saccharides...
  67. ncbi Epizootiology of morbillivirus infection in harp, hooded, and ringed seals from the Canadian Arctic and western Atlantic
    P J Duignan
    Department of Pathology, Ontario Veterinary College, University of Guelph, Canada
    J Wildl Dis 33:7-19. 1997
    ..However, the prevalence of infection was highest where ringed seals are sympatric with harp seals in the eastern Canadian Arctic...
  68. ncbi Experimental evidence of seawater drinking in juvenile hooded (Cystophora cristata) and harp seals (Phoca groenlandica)
    I Skalstad
    Department of Arctic Biology, Institute of Medical Biology, , Breivika, Norway
    J Comp Physiol B 170:395-401. 2000
    ..It is concluded that water influx due to seawater drinking can not be excluded as a source of error when estimating food consumption of free-ranging harp seals and hooded seals, by use of labeled water techniques...
  69. pmc Mammalian mitogenomic relationships and the root of the eutherian tree
    Ulfur Arnason
    Division of Evolutionary Molecular Systematics, University of Lund, S 223 62 Lund, Sweden
    Proc Natl Acad Sci U S A 99:8151-6. 2002
    ..The analyses identified monophyletic Pinnipedia with Otariidae (sea lions, fur seals) and Odobenidae (walruses) as sister groups to the exclusion of Phocidae (true seals)...
  70. ncbi Mortality trends of stranded marine mammals on Cape Cod and southeastern Massachusetts, USA, 2000 to 2006
    Andrea L Bogomolni
    Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA
    Dis Aquat Organ 88:143-55. 2010
    ..They not only afford a better retrospective analysis of strandings, but ultimately have application for improving current and future response to live animal stranding...
  71. ncbi Giardiasis in pinnipeds from eastern Canada
    L N Measures
    Fisheries and Oceans Canada, Maurice Lamontagne Institute, Mont Joli, QC
    J Wildl Dis 35:779-82. 1999
    ..Lawrence estuary were negative for Giardia sp. cysts. The significance of Giardia sp. in marine mammals, shown here for the first time in eastern coastal Canada, is unknown...
  72. ncbi Brucella sp. antibodies in polar bears from Svalbard and the Barents Sea
    M Tryland
    Department of Arctic Veterinary Medicine, The Norwegian School of Veterinary Science, Tromsø
    J Wildl Dis 37:523-31. 2001
    ..There are no indications of reproductive disorders caused by Brucella sp. or other infectious agents in our study polar bear population. Potential impacts of Brucella sp. exposure on individuals or the population are unknown...
  73. ncbi Phylogeny of the caniform carnivora: evidence from multiple genes
    Li Yu
    Laboratory of Molecular Biology of Domestic Animals, and Cellular and Molecular Evolution, Kunming Institute of Zoology, 650223, Kunming, China
    Genetica 127:65-79. 2006
    ..The potential utilities of different genes in the context of caniform phylogeny were also evaluated, with special attention to the previously unexplored beta-fibrinogen intron 4 and 7 genes...
  74. ncbi For whales and seals the ocean is not blue: a visual pigment loss in marine mammals
    L Peichl
    Max Planck Institut für Hirnforschung, Deutschordenstr 46, D 60528 Frankfurt, Germany
    Eur J Neurosci 13:1520-8. 2001
    ..sample includes seven species of toothed whales (Odontoceti) and five species of marine carnivores (eared and earless seals). These marine mammals have only L-cones (cone monochromacy) and hence are essentially colour-blind...
  75. ncbi Physiological effects of seawater intake in adult harp seals during phase I of fasting
    P V Storeheier
    Department of Arctic Biology, University of Tromsø, N 9037, Tromsø, Norway
    Comp Biochem Physiol A Mol Integr Physiol 128:307-15. 2001
    ..Seawater ingestion may, moreover, increase urinary osmotic space and thus serve as a mechanism to excrete additional urea produced during phase I of fasting...
  76. ncbi The effect of body fat on basal metabolic rate in adult harp seals (Phoca groenlandica)
    J J Aarseth
    Department of Arctic Biology, University of Tromso, Norway
    Comp Biochem Physiol A Mol Integr Physiol 124:69-72. 1999
    ..This suggests that body fat contributes little to BMR in these animals. It follows, that predictions of BMR on the basis of BM is questionable in seals, in which body fat may change seasonally between 20 and 60% of BM...
  77. ncbi Transfer of polychlorinated biphenyls and chlorinated pesticides from mother to pup in relation to cytochrome P450 enzyme activities in harp seals (Phoca groenlandica) from the gulf of St. Lawrence, Canada
    Hans Wolkers
    Akvaplan niva, Tromsø, Norway
    Environ Toxicol Chem 21:94-101. 2002
    ..The CYP450 enzyme activities were considered unsuitable indicators for contaminant mobilization and transfer in harp seals...
  78. ncbi Absence of short-wavelength sensitive cones in the retinae of seals (Carnivora) and African giant rats (Rodentia)
    L Peichl
    Max Planck Institut für Hirnforschung, Deutschordenstrasse 46, D 60528 Frankfurt a M, Germany
    Eur J Neurosci 10:2586-94. 1998
    ..In two species of African giant rats, Cricetomys gambianus and C. emini, and in two species of earless seals, Phoca hispida and P...
  79. ncbi Tris (4-chlorophenyl) methane and tris (4-chlorophenyl) methanol in marine mammals from the Estuary and Gulf of St. Lawrence
    M Lebeuf
    Department of Fisheries and Oceans, Maurice Lamontagne Institute, PO Box 1000, 850 route de la Mer, Mont Joli Québec, Canada G5H 3Z4
    Environ Pollut 111:29-43. 2001
    ..The relationships between sigma DDT and sigma TCP also demonstrate that sigma TCP are less bioaccumulated than sigma DDT by the marine mammal species examined...
  80. ncbi Effects of age and body mass on development of diving capabilities of gray seal pups: costs and benefits of the postweaning fast
    K A Bennett
    Biology Department, Flemington Building, Mount Allison University, 63B York Street, Sackville, New Brunswick E4L 1G7, Canada
    Physiol Biochem Zool 83:911-23. 2010
    ....
  81. pmc Marine mammals' influence on ecosystem processes affecting fisheries in the Barents Sea is trivial
    Peter J Corkeron
    Bioacoustics Research Program, Cornell Laboratory of Ornithology, 159 Sapsucker Woods Road, Ithaca, NY 14850, USA
    Biol Lett 5:204-6. 2009
    ..The best available scientific evidence provides no justification for marine mammal culls as a primary component of an ecosystem-based approach to managing the fisheries of the Barents Sea...
  82. ncbi The nucleotide sequence of the mitochondrial DNA molecule of the grey seal, Halichoerus grypus, and a comparison with mitochondrial sequences of other true seals
    U Arnason
    Department of Molecular Genetics, University of Lund, Wallenberg Laboratory, Sweden
    J Mol Evol 37:323-30. 1993
    ..Comparison with the cytochrome b gene of the Hawaiian monk seal and the Weddell seal suggested that the lineage of these two species and that of the grey and harbor seals separated approximately 8 million years ago...
  83. pmc Multiple markers and multiple individuals refine true seal phylogeny and bring molecules and morphology back in line
    Tara Lynn Fulton
    Department of Biology, University of Alberta, Edmonton, Alberta, Canada
    Proc Biol Sci 277:1065-70. 2010
    ..The data are also used to explore the relationship between genetic distance and taxonomic rank. Intraspecific sampling also highlights the discrepancy between molecular and morphological rates of evolution within Phocidae...
  84. ncbi Reproductive toxicity in mink (Mustela vison) chronically exposed to environmentally relevant polychlorinated biphenyl concentrations
    B Brunström
    Department of Environmental Toxicology, Centre for Reproductive Biology in Uppsala, Uppsala University, Sweden
    Environ Toxicol Chem 20:2318-27. 2001
    ..High EROD activity was correlated with low kit production, and consequently EROD may serve as a marker for reproductive toxicity by Ah receptor agonists in mink...
  85. ncbi Septicemia, endocarditis, and cerebral infarction due to Staphylococcus aureus in a harp seal (Phoca groenlandica)
    Sathya K Chinnadurai
    Department of Clinical Sciences, North Carolina State University, College of Veterinary Medicine, 4700 Hillsborough Street, Raleigh, North Carolina 27606, USA
    J Zoo Wildl Med 40:393-7. 2009
    ..aureus. Staphylococcus aureus infection should be considered as an additional cause of endocarditis and embolic encephalitis in seals...
  86. ncbi Melatonin potentiates the vasoconstrictive effect of noradrenaline in renal artery from newborn hooded seals (Cystophora cristata) and harp seals (Phoca groenlandica)
    J J Aarseth
    Department of Arctic Biology and Institute of Medical Biology, University of Tromsø, Norway
    J Comp Physiol B 171:491-6. 2001
    ..It is presumed that similar effects may operate in foetal and maternal seals and may influence their circulation during maternal diving...
  87. ncbi Serosurvey of Toxoplasma gondii in North Atlantic marine mammals by the use of agglutination test employing whole tachyzoites and dithiothreitol
    A Oksanen
    Norwegian College of Veterinary Medicine, Department of Arctic Veterinary Medicine, Tromsø, Norway
    Comp Immunol Microbiol Infect Dis 21:107-14. 1998
    ..The modified agglutination test (MAT) was slightly modified to be more user-friendly by replacing the 0.2 M 2-mercaptoethanol with 10 mM dithiothreitol. No positive samples were found at 1:40 dilution...
  88. ncbi Temporal trends in antibody production in captive grey, harp and hooded seals to a single administration immunocontraceptive vaccine
    R G Brown
    Department of Biology, Dalhousie University, Halifax, N S, Canada
    J Reprod Immunol 35:53-64. 1997
    ..The vaccine produced titers in captive, juvenile grey and harp seals known to be immunocontraceptive in wild, adult grey seals...
  89. ncbi Distribution patterns suggest biomagnification of halogenated 1'-methyl-1,2'-bipyrroles (MBPs)
    Kristin C Pangallo
    MIT WHOI Joint Program in Oceanography Applied Ocean Science and Engineering, Woods Hole Oceanographic Institution, 360 Woods Hole Rd, Woods Hole, Massachusetts 02543, USA
    Environ Sci Technol 43:122-7. 2009
    ..Also explored were the similarities and differences with CB-153, the effects of nutritional state on contaminant distribution, and the maternal transfer of blubber-based organic contaminants...
  90. ncbi Unsteady-state gas exchange and storage in diving marine mammals: the harbor porpoise and gray seal
    R G Boutilier
    Department of Zoology, Downing Street, Cambridge, CB2 3EJ, United Kingdom
    Am J Physiol Regul Integr Comp Physiol 281:R490-4. 2001
    ..These data, and similar measurements on gray seals (12), indicate that it is the readjustment of metabolic RQ and not O(2) stores per se that governs the amount of time an animal must spend ventilating at the surface after a dive...
  91. ncbi Ontogeny of humoral immunity in northern elephant seal (Mirounga angustirostris) neonates
    D P King
    Division of Clinical Sciences, Old Medical School, University of Leeds, UK
    Comp Biochem Physiol B Biochem Mol Biol 121:363-8. 1998
    ..In addition, rapid increases in pup total IgG and IgG sub-class concentrations were also observed. Collectively, these findings suggest that the majority of post-partum increases in serum Ig can be accounted for by de-novo synthesis...
  92. ncbi Cutaneous heat flux models do not reliably predict metabolic rates of marine mammals
    P Boily
    Department of Biological Sciences, University of New Orleans, New Orleans, LA 70148, USA
    J Theor Biol 207:317-23. 2000
    ..We conclude that cutaneous heat flux models are too inaccurate and sensitive to small errors in input parameters to provide reliable estimates of metabolic rates of marine mammals...
  93. ncbi The rate of fertilization in male mating tactics of the polygynous grey seal
    D C Lidgard
    Laboratoire de Biologie et Environnement Marins, Universite de La Rochelle, La Rochelle F 17000, France
    Mol Ecol 13:3543-8. 2004
    ....
  94. ncbi Polychlorinated biphenyls and organochlorine pesticides in Baltic and Atlantic gray seal (Halichoerus grypus) pups
    Eugen G Sørmo
    Department of Biology, Norwegian University of Science and Technology, NO 7491 Trondheim, Norway
    Environ Toxicol Chem 22:2789-99. 2003
    ..The most contaminated Baltic seal pups in the present study had PCB concentrations that are comparable or higher than those reported to impair the immune systems and vitamin A dynamics in phocids...
  95. ncbi Fishery management and culling
    Peter J Corkeron
    Science 306:1891-2; author reply 1891-2. 2004
  96. ncbi Relationships between vitamin A and PCBs in grey seal mothers and pups during lactation
    Marie Vanden Berghe
    Institut des Sciences de la Vie, Unite de Biochimie de la Nutrition, Universite Catholique de Louvain, Croix du Sud 2 8, 1348 Louvain la Neuve, Belgium
    Environ Pollut 158:1570-5. 2010
    ..A panel data analysis highlighted a negative impact of PCBs in milk and pup serum on vitamin A status in pup serum...
  97. ncbi Effects of chemical contaminants on genetic diversity in natural populations: implications for biomonitoring and ecotoxicology
    J W Bickham
    Department of Wildlife and Fisheries Sciences, Texas A and M University, 77843, College Station, TX 77843, USA
    Mutat Res 463:33-51. 2000
    ..This paper reviews the issues surrounding the genetic effects of pollution, summarizes the technical approaches that can be used to address these issues, and provides examples of studies that have addressed some of them...
  98. ncbi Progesterone and oestradiol-17 beta concentration profiles throughout the reproductive cycle in harbour seals (Phoca vitulina)
    P J Reijnders
    Research Institute for Nature Management, Dept Estuarine Ecology, Den Burg, The Netherlands
    J Reprod Fertil 90:403-9. 1990
    ..No differences in timing of parturition between the 2 groups were observed. This was probably the result of a flexible period of delayed implantation...
  99. ncbi Editing of morbillivirus P gene transcripts in infected animals
    L Haas
    Institute for Virology, Veterinary School Hannover, Germany
    Vet Microbiol 44:299-306. 1995
    ..However, variation was seen between animals infected with different isolates of RPV and even between animals infected with the same isolate of RPV...
  100. ncbi Levels and enantiomeric ratios of alpha-HCH, oxychlordane, and PCB 149 in blubber of harbour seals (Phoca vitulina) and grey seals (Halichoerus grypus) from Iceland and further species
    U Klobes
    Friedrich Schiller Universitat Jena, Institut für Ernährung und Umwelt, Germany
    Chemosphere 37:2501-12. 1998
    ..In blubber of Weddell seals (Leptonychotes Weddelli) from the Antarctic we determined an alpha-HCH ER < 1 which is in contrast to the Icelandic seal species and a sample from Lake Baikal...
  101. ncbi Organohalogen contaminants and metabolites in cerebrospinal fluid and cerebellum gray matter in short-beaked common dolphins and Atlantic white-sided dolphins from the western North Atlantic
    Eric W Montie
    Department of Biology, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA
    Environ Pollut 157:2345-58. 2009
    ..The sum (Sigma) OH-PCBs/Sigma PCB concentration ratio in CSF was approximately two to three orders of magnitude greater than the ratio in cerebellum GM for dolphins...

Research Grants3

  1. Development of gene transfer approaches for neuroAIDS
    Yuanan Lu; Fiscal Year: 2006
    ..Overall, the work is expected to result in significant insight into new approaches for treatment of neuroAIDS and other neurologic diseases. ..
  2. Aldosterone in angiotensin II-induced hypertension
    Rudy Ortiz; Fiscal Year: 2005
    ..Unlike previous studies, the present study will provide a more comprehensive examination of the renal effects induced by aldo antagonism. ..
  3. Identifying Genes Required for Prion Accumulation
    James Stanton; Fiscal Year: 2007
    ..The sponsor collaborates closely in research and has successfully mentored graduate students to research independence. ..