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Items: 1 to 50 of 82

1.

Extreme diversity in the songs of Spitsbergen's bowhead whales.

Stafford KM, Lydersen C, Wiig Ø, Kovacs KM.

Biol Lett. 2018 Apr;14(4). pii: 20180056. doi: 10.1098/rsbl.2018.0056.

2.

First isolation of Brucella pinnipedialis and detection of Brucella antibodies from bearded seals Erignathus barbatus.

Foster G, Nymo IH, Kovacs KM, Beckmen KB, Brownlow AC, Baily JL, Dagleish MP, Muchowski J, Perrett LL, Tryland M, Lydersen C, Godfroid J, McGovern B, Whatmore AM.

Dis Aquat Organ. 2018 Mar 22;128(1):13-20. doi: 10.3354/dao03211.

PMID:
29565250
3.

SHORT DURATION IMMOBILIZATION OF ATLANTIC WALRUS ( ODOBENUS ROSMARUS ROSMARUS) WITH ETORPHINE, AND REVERSAL WITH NALTREXONE.

Ølberg RA, Kovacs KM, Bertelsen MF, Semenova V, Lydersen C.

J Zoo Wildl Med. 2017 Dec;48(4):972-978. doi: 10.1638/2016-0232R.1.

PMID:
29297843
4.

Hooded seal Cystophora cristata foraging areas in the Northeast Atlantic Ocean-Investigated using three complementary methods.

Vacquie-Garcia J, Lydersen C, Biuw M, Haug T, Fedak MA, Kovacs KM.

PLoS One. 2017 Dec 6;12(12):e0187889. doi: 10.1371/journal.pone.0187889. eCollection 2017.

5.

Origins of the Greenland shark (Somniosus microcephalus): Impacts of ice-olation and introgression.

Walter RP, Roy D, Hussey NE, Stelbrink B, Kovacs KM, Lydersen C, McMeans BC, Svavarsson J, Kessel ST, Biton Porsmoguer S, Wildes S, Tribuzio CA, Campana SE, Petersen SD, Grubbs RD, Heath DD, Hedges KJ, Fisk AT.

Ecol Evol. 2017 Sep 8;7(19):8113-8125. doi: 10.1002/ece3.3325. eCollection 2017 Oct.

6.

The underwater soundscape in western Fram Strait: Breeding ground of Spitsbergen's endangered bowhead whales.

Ahonen H, Stafford KM, de Steur L, Lydersen C, Wiig Ø, Kovacs KM.

Mar Pollut Bull. 2017 Oct 15;123(1-2):97-112. doi: 10.1016/j.marpolbul.2017.09.019. Epub 2017 Sep 20.

PMID:
28938997
7.

An Arctic predator-prey system in flux: climate change impacts on coastal space use by polar bears and ringed seals.

Hamilton CD, Kovacs KM, Ims RA, Aars J, Lydersen C.

J Anim Ecol. 2017 Sep;86(5):1054-1064. doi: 10.1111/1365-2656.12685. Epub 2017 May 22.

PMID:
28415134
8.

Circulating thyroid hormones and associated metabolites in white whales (Delphinapterus leucas) determined using isotope-dilution mass spectrometry.

Hansen M, Villanger GD, Bechshoft T, Levin M, Routti H, Kovacs KM, Lydersen C.

Environ Res. 2017 Jul;156:128-131. doi: 10.1016/j.envres.2017.03.027. Epub 2017 Mar 22.

PMID:
28342348
9.

Maternal transfer of perfluoroalkyl substances in hooded seals.

Grønnestad R, Villanger GD, Polder A, Kovacs KM, Lydersen C, Jenssen BM, Borgå K.

Environ Toxicol Chem. 2017 Mar;36(3):763-770. doi: 10.1002/etc.3623. Epub 2016 Oct 23.

PMID:
27771942
10.

Climate change impacts on wildlife in a High Arctic archipelago - Svalbard, Norway.

Descamps S, Aars J, Fuglei E, Kovacs KM, Lydersen C, Pavlova O, Pedersen ÅØ, Ravolainen V, Strøm H.

Glob Chang Biol. 2017 Feb;23(2):490-502. doi: 10.1111/gcb.13381. Epub 2016 Jun 28. Review.

PMID:
27250039
11.

Spatial and temporal trends in perfluoroalkyl substances (PFASs) in ringed seals (Pusa hispida) from Svalbard.

Routti H, Gabrielsen GW, Herzke D, Kovacs KM, Lydersen C.

Environ Pollut. 2016 Jul;214:230-238. doi: 10.1016/j.envpol.2016.04.016. Epub 2016 Apr 17.

PMID:
27089420
12.

Genetic diversity of historical Atlantic walruses (Odobenus rosmarus rosmarus) from Bjørnøya and Håøya (Tusenøyane), Svalbard, Norway.

Lindqvist C, Roy T, Lydersen C, Kovacs KM, Aars J, Wiig Ø, Bachmann L.

BMC Res Notes. 2016 Feb 18;9:112. doi: 10.1186/s13104-016-1907-8.

13.

Predictions replaced by facts: a keystone species' behavioural responses to declining arctic sea-ice.

Hamilton CD, Lydersen C, Ims RA, Kovacs KM.

Biol Lett. 2015 Nov;11(11). pii: 20150803. doi: 10.1098/rsbl.2015.0803.

14.

Organophosphorous flame retardants in biota from Svalbard, Norway.

Hallanger IG, Sagerup K, Evenset A, Kovacs KM, Leonards P, Fuglei E, Routti H, Aars J, Strøm H, Lydersen C, Gabrielsen GW.

Mar Pollut Bull. 2015 Dec 15;101(1):442-447. doi: 10.1016/j.marpolbul.2015.09.049. Epub 2015 Oct 6.

PMID:
26453403
15.

Seasonal, Oceanographic and Atmospheric Drivers of Diving Behaviour in a Temperate Seal Species Living in the High Arctic.

Blanchet MA, Lydersen C, Ims RA, Kovacs KM.

PLoS One. 2015 Jul 21;10(7):e0132686. doi: 10.1371/journal.pone.0132686. eCollection 2015.

16.

The Argos-CLS Kalman Filter: Error Structures and State-Space Modelling Relative to Fastloc GPS Data.

Lowther AD, Lydersen C, Fedak MA, Lovell P, Kovacs KM.

PLoS One. 2015 Apr 23;10(4):e0124754. doi: 10.1371/journal.pone.0124754. eCollection 2015.

17.

Arctic marine mammal population status, sea ice habitat loss, and conservation recommendations for the 21st century.

Laidre KL, Stern H, Kovacs KM, Lowry L, Moore SE, Regehr EV, Ferguson SH, Wiig Ø, Boveng P, Angliss RP, Born EW, Litovka D, Quakenbush L, Lydersen C, Vongraven D, Ugarte F.

Conserv Biol. 2015 Jun;29(3):724-37. doi: 10.1111/cobi.12474. Epub 2015 Mar 17. Review.

18.

Contaminant levels in the world's northernmost harbor seals (Phoca vitulina).

Routti H, Lydersen C, Hanssen L, Kovacs KM.

Mar Pollut Bull. 2014 Oct 15;87(1-2):140-146. doi: 10.1016/j.marpolbul.2014.08.001. Epub 2014 Aug 22.

PMID:
25152181
19.

Haul-out behaviour of the world's northernmost population of harbour seals (Phoca vitulina) throughout the year.

Hamilton CD, Lydersen C, Ims RA, Kovacs KM.

PLoS One. 2014 Jan 22;9(1):e86055. doi: 10.1371/journal.pone.0086055. eCollection 2014.

20.

Temporal and spatial variation in polychlorinated biphenyl chiral signatures of the Greenland shark (Somniosus microcephalus) and its arctic marine food web.

Lu Z, Fisk AT, Kovacs KM, Lydersen C, McKinney MA, Tomy GT, Rosenburg B, McMeans BC, Muir DC, Wong CS.

Environ Pollut. 2014 Mar;186:216-25. doi: 10.1016/j.envpol.2013.12.005. Epub 2014 Jan 3.

PMID:
24389599
21.

The world's northernmost harbour seal population-how many are there?

Merkel B, Lydersen C, Yoccoz NG, Kovacs KM.

PLoS One. 2013 Jul 3;8(7):e67576. doi: 10.1371/journal.pone.0067576. Print 2013.

22.

Effects of complex organohalogen contaminant mixtures on thyroid homeostasis in hooded seal (Cystophora cristata) mother-pup pairs.

Villanger GD, Gabrielsen KM, Kovacs KM, Lydersen C, Lie E, Karimi M, Sørmo EG, Jenssen BM.

Chemosphere. 2013 Aug;92(7):828-42. doi: 10.1016/j.chemosphere.2013.04.036. Epub 2013 May 29.

PMID:
23726007
23.

Phocine herpesvirus 1 (PhHV-1) in harbor seals from Svalbard, Norway.

Roth SJ, Tischer BK, Kovacs KM, Lydersen C, Osterrieder N, Tryland M.

Vet Microbiol. 2013 Jun 28;164(3-4):286-92. doi: 10.1016/j.vetmic.2013.03.008. Epub 2013 Mar 21.

PMID:
23570865
24.

Associations between vitamins A and E and legacy POP levels in highly contaminated Greenland sharks (Somniosus microcephalus).

Molde K, Ciesielski TM, Fisk AT, Lydersen C, Kovacs KM, Sørmo EG, Jenssen BM.

Sci Total Environ. 2013 Jan 1;442:445-54. doi: 10.1016/j.scitotenv.2012.10.012. Epub 2012 Nov 24.

PMID:
23183125
25.

Serum chemistry and antibodies against pathogens in antarctic fur seals, Weddell seals, crabeater seals, and Ross seals.

Tryland M, Nymo IH, Nielsen O, Nordøy ES, Kovacs KM, Krafft BA, Thoresen SI, Åsbakk K, Osterrieder K, Roth SJ, Lydersen C, Godfroid J, Blix AS.

J Wildl Dis. 2012 Jul;48(3):632-45.

PMID:
22740529
26.

Pre-partum diet of adult female bearded seals in years of contrasting ice conditions.

Hindell MA, Lydersen C, Hop H, Kovacs KM.

PLoS One. 2012;7(5):e38307. doi: 10.1371/journal.pone.0038307. Epub 2012 May 31.

27.

Biology of the Greenland shark Somniosus microcephalus.

MacNeil MA, McMeans BC, Hussey NE, Vecsei P, Svavarsson J, Kovacs KM, Lydersen C, Treble MA, Skomal GB, Ramsey M, Fisk AT.

J Fish Biol. 2012 Apr;80(5):991-1018. doi: 10.1111/j.1095-8649.2012.03257.x. Review.

PMID:
22497371
28.

Levels and patterns of hydroxylated polychlorinated biphenyls (OH-PCBs) and their associations with thyroid hormones in hooded seal (Cystophora cristata) mother-pup pairs.

Gabrielsen KM, Villanger GD, Lie E, Karimi M, Lydersen C, Kovacs KM, Jenssen BM.

Aquat Toxicol. 2011 Oct;105(3-4):482-91. doi: 10.1016/j.aquatox.2011.08.003. Epub 2011 Aug 11.

PMID:
21888873
29.

Disruptive effects of persistent organohalogen contaminants on thyroid function in white whales (Delphinapterus leucas) from Svalbard.

Villanger GD, Lydersen C, Kovacs KM, Lie E, Skaare JU, Jenssen BM.

Sci Total Environ. 2011 Jun 1;409(13):2511-24. doi: 10.1016/j.scitotenv.2011.03.014. Epub 2011 Apr 15.

PMID:
21497377
30.

A simple route to single-nucleotide polymorphisms in a nonmodel species: identification and characterization of SNPs in the Artic ringed seal (Pusa hispida hispida).

Olsen MT, Volny VH, Bérubé M, Dietz R, Lydersen C, Kovacs KM, Dodd RS, Palsbøll PJ.

Mol Ecol Resour. 2011 Mar;11 Suppl 1:9-19. doi: 10.1111/j.1755-0998.2010.02941.x. Epub 2011 Jan 10.

PMID:
21429159
31.

Effects of hydrographic variability on the spatial, seasonal and diel diving patterns of southern elephant seals in the eastern Weddell Sea.

Biuw M, Nøst OA, Stien A, Zhou Q, Lydersen C, Kovacs KM.

PLoS One. 2010 Nov 3;5(11):e13816. doi: 10.1371/journal.pone.0013816.

32.

Helminth parasites in ringed seals (Pusa hispida) from Svalbard, Norway with special emphasis on nematodes: variation with age, sex, diet, and location of host.

Johansen CE, Lydersen C, Aspholm PE, Haug T, Kovacs KM.

J Parasitol. 2010 Oct;96(5):946-53. doi: 10.1645/GE-1685.1. Epub 2010 Apr 26.

PMID:
20950103
33.

Hormone, vitamin and contaminant status during the moulting/fasting period in ringed seals (Pusa [Phoca] hispida) from Svalbard.

Routti H, Jenssen BM, Lydersen C, Bäckman C, Arukwe A, Nyman M, Kovacs KM, Gabrielsen GW.

Comp Biochem Physiol A Mol Integr Physiol. 2010 Jan;155(1):70-6. doi: 10.1016/j.cbpa.2009.09.024. Epub 2009 Oct 2.

PMID:
19800979
34.

Serum chemistry reference values in free-ranging north Atlantic male walruses (Odobenus rosmarus rosmarus) from the Svalbard archipelago.

Tryland M, Lydersen C, Kovacs KM, Thoresen SI.

Vet Clin Pathol. 2009 Dec;38(4):501-6. doi: 10.1111/j.1939-165X.2009.00154.x. Epub 2009 May 15.

PMID:
19473331
35.

Structural characterization of multibranched oligosaccharides from seal milk by a combination of off-line high-performance liquid chromatography-matrix-assisted laser desorption/ionization-time-of-flight mass spectrometry and sequential exoglycosidase digestion.

Kinoshita M, Ohta H, Higaki K, Kojima Y, Urashima T, Nakajima K, Suzuki M, Kovacs KM, Lydersen C, Hayakawa T, Kakehi K.

Anal Biochem. 2009 May 15;388(2):242-53. doi: 10.1016/j.ab.2009.03.004. Epub 2009 Mar 9.

PMID:
19275874
36.
37.

Biomarker responses and decreasing contaminant levels in ringed seals (Pusa hispida) from Svalbard, Norway.

Wolkers H, Krafft BA, van Bavel B, Helgason LB, Lydersen C, Kovacs KM.

J Toxicol Environ Health A. 2008;71(15):1009-18. doi: 10.1080/15287390801907558.

PMID:
18569610
38.

Stratification, composition, and function of marine mammal blubber: the ecology of fatty acids in marine mammals.

Strandberg U, Käkelä A, Lydersen C, Kovacs KM, Grahl-Nielsen O, Hyvärinen H, Käkelä R.

Physiol Biochem Zool. 2008 Jul-Aug;81(4):473-85. doi: 10.1086/589108.

PMID:
18532882
39.

Feeding kinematics, suction and hydraulic jetting capabilities in bearded seals (Erignathus barbatus).

Marshall CD, Kovacs KM, Lydersen C.

J Exp Biol. 2008 Mar;211(Pt 5):699-708. doi: 10.1242/jeb.009852.

40.

Ringed seal post-moulting movement tactics and habitat selection.

Freitas C, Kovacs KM, Ims RA, Fedak MA, Lydersen C.

Oecologia. 2008 Feb;155(1):193-204. Epub 2007 Nov 8.

PMID:
17990001
41.

Serosurvey for Toxoplasma gondii in arctic foxes and possible sources of infection in the high Arctic of Svalbard.

Prestrud KW, Asbakk K, Fuglei E, Mørk T, Stien A, Ropstad E, Tryland M, Gabrielsen GW, Lydersen C, Kovacs KM, Loonen MJ, Sagerup K, Oksanen A.

Vet Parasitol. 2007 Nov 30;150(1-2):6-12. Epub 2007 Oct 22.

PMID:
17950534
42.

Serum chemistry values for free-ranging ringed seals (Pusa hispida) in Svalbard.

Tryland M, Krafft BA, Lydersen C, Kovacs KM, Thoresen SI.

Vet Clin Pathol. 2006 Dec;35(4):405-12.

PMID:
17123246
43.

Biomagnification of polybrominated diphenyl ether and hexabromocyclododecane flame retardants in the polar bear food chain in Svalbard, Norway.

Sørmo EG, Salmer MP, Jenssen BM, Hop H, Baek K, Kovacs KM, Lydersen C, Falk-Petersen S, Gabrielsen GW, Lie E, Skaare JU.

Environ Toxicol Chem. 2006 Sep;25(9):2502-11.

PMID:
16986806
44.

The derivation of radionuclide transfer parameters for and dose-rates to an adult ringed seal (Phoca hispida) in an Arctic environment.

Gwynn JP, Brown JE, Kovacs KM, Lydersen C.

J Environ Radioact. 2006;90(3):197-209. Epub 2006 Sep 11. Erratum in: J Environ Radioact. 2007;97(2-3):236-7.

PMID:
16965842
45.

Congener-specific accumulation and patterns of chlorinated and brominated contaminants in adult male walruses from Svalbard, Norway: indications for individual-specific prey selection.

Wolkers H, van Bavel B, Ericson I, Skoglund E, Kovacs KM, Lydersen C.

Sci Total Environ. 2006 Oct 15;370(1):70-9. Epub 2006 Aug 17.

PMID:
16916533
46.

Serum haptoglobin concentrations in ringed seals (Pusa hispida) from Svalbard, Norway.

Krafft BA, Lydersen C, Kovacs KM.

J Wildl Dis. 2006 Apr;42(2):442-6.

PMID:
16870873
47.

Entanglement of Antarctic fur seals at Bouvetøya, Southern Ocean.

Greg Hofmeyr GJ, Bester MN, Kirkman SP, Lydersen C, Kovacs KM.

Mar Pollut Bull. 2006 Sep;52(9):1077-80. Epub 2006 May 13.

PMID:
16797599
48.

Serum chemistry of free-ranging white whales (Delphinapterus leucas) in Svalbard.

Tryland M, Thoresen SI, Kovacs KM, Lydersen C.

Vet Clin Pathol. 2006 Jun;35(2):199-203.

PMID:
16783713
49.

Probabilistic biokinetic modelling of radiocaesium uptake in Arctic seal species: verification of modelled data with empirical observations.

Brown J, Dowdall M, Gwynn JP, Børretzen P, Selnaes ØG, Kovacs KM, Lydersen C.

J Environ Radioact. 2006;88(3):289-305. Epub 2006 May 2.

PMID:
16650920
50.

Microstructure and innervation of the mystacial vibrissal follicle-sinus complex in bearded seals, Erignathus barbatus (Pinnipedia: Phocidae).

Marshall CD, Amin H, Kovacs KM, Lydersen C.

Anat Rec A Discov Mol Cell Evol Biol. 2006 Jan;288(1):13-25.

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