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Knut Helge Jensen's picture

Knut Helge Jensen

Senior Engineer
  • E-mailKnut.Jensen@uib.no
  • Phone+47 55 58 35 98
  • Visitor Address
    Thormøhlensgt. 53 A/B
  • Postal Address
    Postboks 7803
    5020 Bergen
Journal articles
  • Marwaha, Janhavi; Jensen, Knut Helge; Jakobsen, Per Johan; Geist, Jürgen. 2017. Duration of the parasitic phase determines subsequent performance in juvenile freshwater pearl mussels (Margaritifera margaritifera). Ecology and Evolution. 7: 1375-1383. doi: 10.1002/ece3.2740
  • Aspaas, Stian; Grefsrud, Ellen Sofie; Fernø, Anders; Jensen, Knut Helge; Trengereid, Henrik; Agnalt, Ann-Lisbeth. 2016. An enriched environment promotes shelter-seeking behaviour and survival of hatchery-produced juvenile European lobster (Homarus gammarus). PLoS ONE. 11:e0159807. doi: 10.1371/journal.pone.0159807
  • Skorping, Arne; Jensen, Knut Helge; Mennerat, Adele; Högstedt, Göran. 2016. When to reproduce? A new answer to an old question. American Naturalist. doi: 10.1086/685423
  • Langård, Lise; Skaret, Georg; Jensen, Knut Helge; Johannessen, Arne; Slotte, Aril; Nøttestad, Leif; Fernø, Anders. 2015. Tracking individual herring within a semi-enclosed coastal marine ecosystem: 3-Dimensional dynamics from pre- To post-spawning. Marine Ecology Progress Series. 518: 267-279. doi: 10.3354/meps11065
  • Luyiga, Suzan; Haande, Sigrid; Semyalo, Ronald P.; Kizito, Yusuf S.; Miyingo-Kezimbira, Anne; Brettum, Pål; Solheim, Anne Lyche; Odong, Robinson; Asio, Santa Maria; Jensen, Knut Helge; Larsson, Petter. 2015. How water exchange and seasonality affect the eutrophication of Murchison Bay, Lake Victoria. Limnologica. 53: 60-73. doi: 10.1016/j.limno.2015.06.001
  • Utne-Palm, Anne Christine; Eduard, Kjartan; Jensen, Knut Helge; Mayer, Ian; Jakobsen, Per Johan. 2015. Size dependent male reproductive tactic in the two-spotted goby (Gobiusculus flavescens). PLoS ONE. 10. doi: 10.1371/journal.pone.0143487
  • Armitage, Caroline Susanne; Sjøtun, Kjersti; Jensen, Knut Helge. 2014. Correlative evidence for competition between fucus serratus and the introduced chlorophyte codium fragile subsp. fragile on the southwest coast of norway. Botanica Marina. 57: 85-97. doi: 10.1515/bot-2013-0087
  • Eide, Marta; Rusten, Marte; Male, Rune; Jensen, Knut Helge; Goksøyr, Anders. 2014. A characterization of the ZFL cell line and primary hepatocytes as in vitro liver cell models for the zebrafish (Danio rerio). Aquatic Toxicology. 147: 7-17. doi: 10.1016/j.aquatox.2013.11.023
  • Langård, Lise; Fatnes, Ole Andreas; Johannessen, Arne; Skaret, Georg; Axelsen, Bjørn Erik E; Nøttestad, Leif; Slotte, Aril; Jensen, Knut Helge; Fernø, Anders. 2014. State-dependent spatial and intra-school dynamics in pre-spawning herring Clupea harengus in a semi-enclosed ecosystem. Marine Ecology Progress Series. 501: 251-263. doi: 10.3354/meps10718
  • Marwaha, Janhavi; Jensen, Knut Helge; Jakobsen, Per Johan. 2013. The protection afforded by the outer layer to procercoids of Schistocephalus solidus during passage through the stomach lumen of their vertebrate host (Gasterosteus aculeatus). Experimental parasitology. 134: 12-17. doi: 10.1016/j.exppara.2013.01.019
  • Salvanes, Anne Gro Vea; Moberg, Olav; Ebbesson, Lars O.E.; Nilsen, Tom Ole; Jensen, Knut Helge; Braithwaite, Victoria Anne. 2013. Environmental enrichment promotes neural plasticity and cognative behaviour in fish. Proceedings of the Royal Society of Edinburgh Section B. 280. doi: /10.1098/rspb.2013.1331
  • Salvanes, Anne Gro Vea; Moberg, Olav; Ebbesson, Lars O.E.; Nilsen, Tom Ole; Jensen, Knut Helge; Braithwaite, Victoria Anne. 2013. Environmental enrichment promotes neural plasticity and cognitive ability in fish. Proceedings of the Royal Society of London. Biological Sciences. 280. 7 pages. doi: 10.1098/rspb.2013.1331
  • Magerøy, Jon; Grepperud, Eldfrid Johanne; Jensen, Knut Helge. 2011. Who benefits from reduced reproduction in parasitized hosts? An experimental test using the Pasteuria ramosa-Daphnia magna system. Parasitology. 138: 1910-1915. doi: 10.1017/S0031182011001302
  • Michaelsen, Tore Christian; Jensen, Knut Helge; Høgstedt, Gøran. 2011. Topography is a limiting distributional factor in the soprano pipistrelle at its latitudinal extreme. Mammalian Biology. 76: 295-301. doi: 10.1016/j.mambio.2010.12.004
  • Moberg, Olav; Braithwaite, Victoria Anne; Jensen, Knut Helge; Salvanes, Anne Gro Vea. 2011. Effects of habitat enrichment and food availability on the foraging behaviour of juvenile Atlantic Cod (Gadus morhua L). Environmental Biology of Fishes. 91: 449-457. doi: 10.1007/s10641-011-9803-5
  • Strand, David Allan; Utne-Palm, Anne Christine; Jakobsen, Per Johan; Braithwaite, Victoria Anne; Jensen, Knut Helge; Salvanes, Anne Gro Vea. 2010. Enrichment promotes learning in fish. Marine Ecology Progress Series. 412: 273-282. doi: 10.3354/meps08682
  • Holmstad, Per Ragnvald; Jensen, Knut Helge; Skorping, Arne. 2008. Ectoparasite intensities are correlated with endoparasite infection loads in willow ptarmigan. Oikos. 117: 515-520. doi: 10.1111/j.2007.0030-1299.16219.x
  • Holmstad, Per Ragnvald; Jensen, Knut Helge; Skorping, Arne. 2006. Vector-borne parasites decrease host mobility: A field test of freeze or flee behaviour of willow ptarmigan. International Journal of Parasitology. 36: 735-740. doi: 10.1016/j.ijpara.2006.02.015
  • Jensen, Knut Helge; Little, Tom; Skorping, Arne; Ebert, Dieter. 2006. Empirical support for optimal virulence in a castrating parasite. PLoS biology. 4: 1265-1269. doi: 10.1371/journal.pbio.0040197
  • Jensen, Knut Helge. 2004. Flokkdanning hos byttedyr � beskyttelse og kamp om ressurser. Naturen. 1: 37-40.
  • Jensen, Knut Helge; Skorping, Arne. 2004. Akvakultur � oppdrett av sykdomsorganismer? Fiskehelse. 2: 15-19.
  • Mucklow, Patrick T.; Vizoso, Dita B.; Jensen, Knut Helge; Refardt, Dominik; Ebert, Dieter. 2004. Variation for phenoloxidase activity and its relation to parasite resistance within and between populations of Daphnia magna. Proceedings of the Royal Society of London. Biological Sciences. 271: 1175-1183.
  • Skorping, Arne; Jensen, Knut Helge. 2004. Disease dynamics: all caused by males? Trends in Ecology & Evolution. 19: 219-220.
  • Jensen, Knut Helge; Larsson, Petter. 2002. Predator evasion in Daphnia: the adaptive value of aggregation associated with attack abatement. Oecologia. 132: 461-467.
  • Jensen, Knut Helge; Larsson, Petter. 2001. Experimental field and laboratory tests of food search in Daphnia pulex. Verhandlungen / Internationale Vereinigung für Theoretische und Angewandte Limnologie. 27: 1795-1802.
  • Jensen, Knut Helge; Larsson, Petter; Høgstedt, Gøran. 2001. Detecting food search in Daphnia in the field. Limnology and Oceanography. 46: 1013-1020.
  • Jensen, Knut Helge; Kleiven, Ole T.; Jakobsen, Per Johan. 1999. How important is light in the aggregating behaviour of Daphnia pulex (Cladocera: Crustacea)? Hydrobiologia. 13-18.
  • Jensen, Knut Helge; Jakobsen, Per Johan; Kleiven, Ole T. 1998. Fish kairomone regulation of internal swarm structure in Daphnia pulex (Cladocera: Crustacea). Hydrobiologia. 368: 123-127.
Reports and theses
  • Jensen, Knut Helge. 2000. Gregariousness in Daphnia: Significance of food distribution and predator evation.
  • Breistøl, Arild; Jensen, Knut Helge. 1998. Anvendt statistikk ved bruk av SAS/STAT. Zoologisk Institutt. 89 pages.
  • Jensen, Knut Helge. 1996. Spatial distribution of <EM>Daphnia pulex</EM> : the role of fish kairomones, light distribution and food level. [Mangler utgivernavn]. 27 pages.

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