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Jon Vidar Helvik

Professor
  • E-mailVidar.Helvik@uib.no
  • Phone+47 55 58 43 71
  • Visitor Address
    Thormøhlensgt. 53 A/B
  • Postal Address
    Postboks 7803
    5020 Bergen

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Head supervisor: BIO370 Cell- and developmental biology; MAR350 Advanced aquaculture

Journal articles
  • Eilertsen, Mariann; Valen, Ragnhild; Drivenes, Øyvind; Ebbesson, Lars O.E.; Helvik, Jon Vidar. 2018. Transient photoreception in the hindbrain is permissive to the life history transition of hatching in Atlantic halibut. Developmental Biology. 444: 129-138. doi: 10.1016/j.ydbio.2018.10.006
  • Valen, Ragnhild; Karlsen, Rita; Helvik, Jon Vidar. 2018. Environmental, population and life-stage plasticity in the visual system of Atlantic cod. Journal of Experimental Biology. 221: 1-13. doi: 10.1242/jeb.165191
  • Busserolles de, Fanny; Cortesi, Fabio; Helvik, Jon Vidar; Davies, Wayne I. L.; Templin, Rachel M.; Sullivan, Robert K. P.; Michell, Craig T.; Mountford, Jessica K.; Collin, Shaun P.; Irigoien, Xabier; Kaartvedt, Stein; Marshall, Justin. 2017. Pushing the limits of photoreception in twilight conditions: The rod-like cone retina of the deep-sea pearlsides. Science Advances. 3: 1-13. doi: 10.1126/sciadv.aao4709
  • Valen, Ragnhild; Eilertsen, Mariann; Edvardsen, Rolf; Furmanek, Tomasz; Rønnestad, Ivar; van der Meeren, Terje; Karlsen, Ørjan; Nilsen, Tom Ole; Helvik, Jon Vidar. 2016. The two-step development of a duplex retina involves distinct events of cone and rod neurogenesis and differentiation. Developmental Biology. 416: 389-401. doi: 10.1016/j.ydbio.2016.06.041
  • Nilsen, Tom Ole; Lukas, Juliane; Valen, Ragnhild; Helvik, Jon Vidar; Ebbesson, Lars O.E.; Rønnestad, Ivar; Hamre, Kristin; Handeland, Sigurd O; Stefansson, Sigurd Olav. 2015. Utvikling av osmoreguleringssystemet hos torskelarver startfôret på rotatorier eller naturlig zooplankton. Norsk Fiskeoppdrett. E1: 36-38.
  • Eilertsen, Mariann; Drivenes, Øyvind; Edvardsen, Rolf; Bradley, Clarissa A.; Ebbesson, Lars O.E.; Helvik, Jon Vidar. 2014. The exorhodopsin and melanopsin systems in the pineal complex and brain at early developmental stages of Atlantic halibut (Hippoglossus hippoglossus). Journal of Comparative Neurology. 522: 4003-4022. doi: 10.1002/cne.23652
  • Valen, Ragnhild; Edvardsen, Rolf; Søviknes, Anne Mette; Drivenes, Øyvind; Helvik, Jon Vidar. 2014. Molecular evidence that only two opsin subfamilies, the blue light- (SWS2) and green light-sensitive (RH2), drive color vision in Atlantic cod (Gadus morhua). PLoS ONE. 9:e0115436. doi: 10.1371/journal.pone.0115436
  • Kamisaka, Yuko; Helvik, Jon Vidar; Tagawa, Masatomo; Tanaka, Masaru; Rønnestad, Ivar. 2013. Evidence for an ontogenetic change from pre-programmed to meal-responsive cck production in Atlantic herring, Clupea harengus L. Comparative Biochemistry and Physiology A. 164: 17-20. doi: 10.1016/j.cbpa.2012.10.006
  • Sandbakken, Mari; Ebbesson, Lars O.E.; Stefansson, Sigurd Olav; Helvik, Jon Vidar. 2012. Isolation and characterization of melanopsin photoreceptors of atlantic salmon (Salmo salar). Journal of Comparative Neurology. 520: 3727-3744. doi: 10.1002/cne.23125
  • Ebbesson, Lars O.E.; Nilsen, Tom Ole; Helvik, Jon Vidar; Tronci, Valentina; Stefansson, Sigurd Olav. 2011. Corticotropin-Releasing Factor Neurogenesis during Midlife Development in Salmon: Genetic, Environmental and Thyroid Hormone Regulation. Journal of neuroendocrinology. 23: 733-741. doi: 10.1111/j.1365-2826.2011.02164.x
  • Helvik, Jon Vidar; Rødahl, Eyvind; Drivenes, Øyvind; Haarr, Lars. 2009. Identification and Characterization of Two Zebrafish Nectin-1 Genes That Are Differentially Expressed in the Developing Eye and Brain. Developmental Dynamics. 238: 43-55. doi: 10.1002/dvdy.21813
  • Hoppmann, Verena; Wu, Jun J.; Søviknes, Anne Mette; Helvik, Jon Vidar; Becker, Thomas S. 2008. Expression of the eight AMPA receptor subunit genes in the developing central nervous system and sensory organs of zebrafish. Developmental Dynamics. 237: 788-799. doi: 10.1002/dvdy.21447
  • Karlsen, Marius; Nylund, Are; Watanabe, Kuninori; Helvik, Jon Vidar; Nylund, Stian; Plarre, Heidrun. 2008. Characterization of 'Candidatus Clavochlamydia salmonicola': an intracellular bacterium infecting salmonid fish. Environmental Microbiology. 10: 208-218. doi: 10.1111/j.1462-2920.2007.01445.x
  • Zhao, Xiaofeng; Fjose, Anders; Larsen, Natalia; Helvik, Jon Vidar; Drivenes, Øyvind. 2008. Treatment with small interfering RNA affects the microRNA pathway and causes unspecific defects in zebrafish embryos. The FEBS Journal. 275: 2177-2184. doi: 10.1111/j.1742-4658.2008.06371.x
  • Kamisaka, Y; Drivenes, Øyvind; Kurokawa, T; Tagawa, M; Rønnestad, Ivar; Tanaka, M; Helvik, Jon Vidar. 2005. Cholecystokinin mRNA in Atlantic herring, Clupea harengus - molecular cloning, characterization, and distribution in the digestive tract during the early life stages. Peptides. 26.
  • ALLISON,, W. TED; DANN, STEPHEN G; Helvik, Jon Vidar; BRADLEY, CLARRISA; MOYER, HEATHER D; HAWRYSHYN, CRAIG W. 2003. Ontogeny of Ultraviolet-Sensitive Cones in the Retina of Rainbow Trout (Oncorhynchus mykiss). Journal of Comparative Neurology. 461: 294-306.
  • Drivenes, Øyvind; Søviknes, Anne Mette; Ebbesson, Lars O. E.; Seo, Hee-Chan; Fjose, Anders; Helvik, Jon Vidar. 2003. Isolation and characterization of two teleost melanopsin genes and their differential expression within the inner retina and brain. Journal of Comparative Neurology. 456: 84-93.
  • Weltzien, Finn Arne; Nordberg, Birgitta; Helvik, Jon Vidar; Andersen, Øyvind; Swanson, Penny; Anderson, Eva. 2003. Identification and localization of eight distinct hormone-producing cell types in the pituitary of male Atlantic halibut (Hippoglossus hippoglossus L.). Comparative biochemistry and physiology. B. Comparative biochemistry. 134: 315-327.
  • Weltzien, Finn-Arne; Andersen, Øivind; Norberg, Birgitta; Helvik, Jon Vidar; Swanson, Penny; Andersson, Eva. 2003. Identification and localization of eight distinct hormone-producing cell types in the pituitary of male Atlantic halibut (hippoglossus hippoglossus). Comparative Biochemistry and Physiology A. 134: 315-327. doi: 10.1016/S1095-6433(02)00266-0
  • Helvik, Jon Vidar; Drivenes, Øyvind; Habroe, Torstein; Seo, Hee-Chan. 2001. Topography of different photoreceptor cell types in the larval retina of Atlantic halibut (Hippoglossus hippoglossus). Journal of Experimental Biology. 204: 2553-2559.
  • Helvik, Jon Vidar; Drivenes, Øyvind; Næss, Tore; Fjose, Anders; Seo, Hee-Chan. 2001. Molecular cloning and characterisation of five opsin genes from the marine flatfish Atlantic halibut (Hippoglossus hippoglossus). Visual Neuroscience. 18: 767-780.
  • Karlsen, Ørjan; Skiftesvik, Anne Berit; Helvik, Jon Vidar. 1998. The effect of light on activity and growth of Atlantic halibut, Hippoglossus hippoglossus L., yolk-sac larvae. Aquaculture Research. 29: 899-912. doi: 10.1046/j.1365-2109.1998.29120899.x
  • Helvik, Jon Vidar; Karlsen, Ørjan. 1996. The effect of light- and dark-rearing on the development of the eyes of Atlantic halibut (Hippoglossus hippoglossus) yolk sac larvae. Marine and Freshwater Behaviour & Physiology. 28: 107-121. doi: 10.1080/10236249609378982
  • Kvenseth, A. M.; Pittman, Karin; Helvik, Jon Vidar. 1994. Når kan kveitelarven se? - en brikke i puslespillet omkring startforing av kveite. Norsk Fiskeoppdrett. 19: 30-31.
  • Helvik, Jon Vidar; Walther, Bernt T. 1993. Development of hatchability in halibut (Hippoglossus hippoglossus) embryos. International Journal of Developmental Biology. 37: 487-490.
  • Helvik, Jon Vidar; Walther, Bernt T. 1992. Photo-regulation of the hatching process in halibut (Hippoglossus hippoglossus) eggs. Journal of Experimental Zoology. Part A: Ecological Genetics and Physiology. 263: 204-209.
  • Oppen-Berntsen, D. O.; Hyllner, S. J.; Haux, C.; Helvik, Jon Vidar; Walther, Bernt T. 1992. Eggshell zona radiat-proteins: Extra-ovarian origin and induction by estradiol-17_b. International Journal of Developmental Biology. 36: 247-254.
  • Helvik, Jon Vidar; Flood, P. R.; Walther, Bernt T.; Oppen-Berntsen, D. O. 1991. Morphogenesis of the hatching gland of Atlantic halibut (Hippoglossus hippoglossus). Roux's Archives of Developmental Biology. 200: 180-187.
  • Helvik, Jon Vidar; Oppen-Berntsen, D. O.; Flood, P. R.; Walther, Bernt T. 1991. Morphogenesis of the hatching gland of Atlantic halibut (Hippoglossus hippoglossus). Roux's Archives of Developmental Biology. 200: 180-187.
  • Helvik, Jon Vidar; Oppen-Berntsen, D. O.; Walther, Bernt T. 1991. The hatching mechanism in Atlantic halibut (#_H#_i#_p#_p#_o#_g#_l#_o#_s#_s#_u#_s#_ #_h#_i#_p#_p#_o#_g#_l#_o#_s#_s#_u#_s). International Journal of Developmental Biology. 35: 9-16.
  • Helvik, Jon Vidar; Oppen-Berntsen, D. O.; Walther, Bernt T. 1991. The hatching mechanism in Atlantic halibut (Hippoglossus hippoglossus). International Journal of Developmental Biology. 35: 9-16.
  • Hyllner, S. J.; Oppen-Berntsen, D. O.; Helvik, Jon Vidar; Walther, Bernt T.; Haux, C. 1991. Oestradiol 17_b induces the major vitelline envelope proteins in both sexes in teleosts. Journal of Endocrinology. 131: 229-236.
  • Hyllner, S. J.; Oppen-Berntsen, D. O.; Helvik, Jon Vidar; Walther, Bernt T.; Haux, C. 1991. Oestradiol -17_b induces the major vitellin envelope proteins in both sexes in teleosts. Journal of Endocrinology. 131: 229-236.
  • Bergh, Øivind; Hansen, Geir Høvik; Jelmert, Anders; Helvik, Jon Vidar. 1990. Bakterier på kveiteegg er en viktig årsak til dødelighet. Norsk Fiskeoppdrett. 13: 32-33.
Reports and theses
  • Schander, Christoffer; Helvik, Jon Vidar; Lindblom, Louise; Høie, Eli Neshavn. 2007. Biology Education at University of Bergen Part I. A Background Document. Universitetet i Bergen/Institutt for Biologi, Bergen.
  • Folkvord, Arild; Blom, Geir; Helvik, Jon Vidar; Holmqvist, Bo I.; Johannessen, Arne; Otterlei, Erling; Stefansson, Sigurd; Brattegard, Torleiv. 1998. Teori- og eksperimentbasert studie av rekruttering hos marin fisk. Sluttrapport for del I av Strategisk Program. IFM rapport. 7. Inst. for fiskeri- og marinbiologi, Univ. i Bergen. 46 pages.
  • Helvik, Jon Vidar. 1992. Biology of hatching : mechanism and control of hatching in eggs of halibut (Hippoglossus hippoglossus). School of Mathematics and Sciences, University of Bergen, Bergen. 1 pages.

More information in national current research information system (CRIStin)

Helvik JV, Rødahl E, Drivenes, O and Haarr L  (2009)  Identification and Characterization of Two Zebrafish Nectin-1 Genes That Are Differentially Expressed in the Developing Eye and Brain Developmental dynamics 238(1): 43-55

 

Xiao-Feng Z, Fjose A, Larsen N, Helvik JV and Drivenes O (2008) Treatment with small interfering RNA affects the microRNA pathway and causes unspecific defects in zebrafish embryos FEBS Journal 275(9) 2177-2184

 

Hoppmann V, Wu JJ, Søviknes AM, Helvik JV, and Becker, TS. (2008). Expression of the eight AMPA Receptor Subunit Genes in the Developing Central Nervous System and Sensory Organs of Zebrafish Developmental Dynamics J237(3):788-799

 

Karlsen, M., Nylund, A., Watanabe, K., Helvik, J.V., Nylund, S. and Plarre, H. (2008) Characterization of ‘Candidatus Clavochlamydia salmonicola’: an intracellular bacterium infecting salmonid fish. Environmental Microbiology 10 (1), 208–218

 

Kamisaka, Y., Drivenes, Ø., Kurokawa, T., Tagawa, M., Rønnestad, I., Tanaka, M., and  Helvik, J.V. (2005) Cholecystokinin mRNA in Atlantic herring, Clupea harengus - molecular cloning, characterization, and distribution in the digestive tract during the early life stages PEPTIDES 26 (3): 385-393

Jon Vidar Helvik holds a MSc in Fisheries Biology (1988) and a PhD also in Fisheries Biology from UoB