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Universitetet i Bergen
Jon Vidar Helviks bilde

Jon Vidar Helvik

Professor
Institutt for biovitenskap (BIO)
  • E-postvidar.helvik@uib.no
  • Telefon+47 55 58 43 71+47 976 18 925
  • Besøksadresse
    Thormøhlens gate 53 A/B
    5006 Bergen
  • Postadresse
    Postboks 7803
    5020 Bergen

Ansvarlig for: BIO370 Celle- og utviklingsbiologi; MAR350 Spesialisering i havbruksbiologi

Vitenskapelig artikkel
  • Vis forfatter(e) (2023). Mapping key neuropeptides involved in the melanocortin system in Atlantic salmon (Salmo salar) brain. Journal of Comparative Neurology. 89-115.
  • Vis forfatter(e) (2023). Light conditions during Atlantic salmon embryogenesis affect key neuropeptides in the melanocortin system during transition from endogenous to exogenous feeding. Frontiers in Behavioral Neuroscience. 13 sider.
  • Vis forfatter(e) (2022). Photoreception and transcriptomic response to light during early development of a teleost with a life cycle tightly controlled by seasonal changes in photoperiod. PLoS Genetics. 28 sider.
  • Vis forfatter(e) (2022). Mapping the pattern of essential neuroendocrine cells related to puberty and VA opsin expression provides further insight in the photoreceptive regulation of the BPG axis in Atlantic salmon (Salmo salar). Brain, Behavior and Evolution. 32-43.
  • Vis forfatter(e) (2022). An EvoDevo Study of Salmonid Visual Opsin Dynamics and Photopigment Spectral Sensitivity. Frontiers in Neuroanatomy. 15 sider.
  • Vis forfatter(e) (2021). Rhythmic Clock Gene Expression in Atlantic Salmon Parr Brain. Frontiers in Physiology.
  • Vis forfatter(e) (2021). Neural activation in photosensitive brain regions of Atlantic salmon (Salmo salar) after light stimulation. PLOS ONE. 1-17.
  • Vis forfatter(e) (2020). Heads and tails: The notochord develops differently in the cranium and caudal fin of Atlantic Salmon (Salmo salar, L.). Stem Cell Reviews and Reports (SCRR). 21 sider.
  • Vis forfatter(e) (2018). Transient photoreception in the hindbrain is permissive to the life history transition of hatching in Atlantic halibut. Developmental Biology. 129-138.
  • Vis forfatter(e) (2018). Environmental, population and life-stage plasticity in the visual system of Atlantic cod. Journal of Experimental Biology. 1-13.
  • Vis forfatter(e) (2017). Pushing the limits of photoreception in twilight conditions: The rod-like cone retina of the deep-sea pearlsides. Science Advances. 1-13.
  • Vis forfatter(e) (2016). The two-step development of a duplex retina involves distinct events of cone and rod neurogenesis and differentiation. Developmental Biology. 389-401.
  • Vis forfatter(e) (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. 4003-4022.
  • Vis forfatter(e) (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.
  • Vis forfatter(e) (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. 17-20.
  • Vis forfatter(e) (2012). Isolation and characterization of melanopsin photoreceptors of atlantic salmon (Salmo salar). Journal of Comparative Neurology. 3727-3744.
  • Vis forfatter(e) (2011). Corticotropin-Releasing Factor Neurogenesis during Midlife Development in Salmon: Genetic, Environmental and Thyroid Hormone Regulation. Journal of neuroendocrinology. 733-741.
  • Vis forfatter(e) (2009). Identification and Characterization of Two Zebrafish Nectin-1 Genes That Are Differentially Expressed in the Developing Eye and Brain. Developmental Dynamics. 43-55.
  • Vis forfatter(e) (2008). Treatment with small interfering RNA affects the microRNA pathway and causes unspecific defects in zebrafish embryos. The FEBS Journal. 2177-2184.
  • Vis forfatter(e) (2008). Expression of the eight AMPA receptor subunit genes in the developing central nervous system and sensory organs of zebrafish. Developmental Dynamics. 788-799.
  • Vis forfatter(e) (2008). Characterization of 'Candidatus Clavochlamydia salmonicola': an intracellular bacterium infecting salmonid fish. Environmental Microbiology. 208-218.
  • Vis forfatter(e) (2005). Cholecystokinin mRNA in Atlantic herring, Clupea harengus - molecular cloning, characterization, and distribution in the digestive tract during the early life stages. Peptides.
  • Vis forfatter(e) (2003). Ontogeny of Ultraviolet-Sensitive Cones in the Retina of Rainbow Trout (Oncorhynchus mykiss). Journal of Comparative Neurology. 294-306.
  • Vis forfatter(e) (2003). Isolation and characterization of two teleost melanopsin genes and their differential expression within the inner retina and brain. Journal of Comparative Neurology. 84-93.
  • Vis forfatter(e) (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. 315-327.
  • Vis forfatter(e) (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. 315-327.
  • Vis forfatter(e) (2001). Topography of different photoreceptor cell types in the larval retina of Atlantic halibut (Hippoglossus hippoglossus). Journal of Experimental Biology. 2553-2559.
  • Vis forfatter(e) (2001). Molecular cloning and characterisation of five opsin genes from the marine flatfish Atlantic halibut (Hippoglossus hippoglossus). Visual Neuroscience. 767-780.
  • Vis forfatter(e) (1998). The effect of light on activity and growth of Atlantic halibut, Hippoglossus hippoglossus L., yolk-sac larvae. Aquaculture Research. 899-912.
  • Vis forfatter(e) (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. 107-121.
  • Vis forfatter(e) (1994). Når kan kveitelarven se? - en brikke i puslespillet omkring startforing av kveite. Norsk Fiskeoppdrett. 30-31.
  • Vis forfatter(e) (1993). Development of hatchability in halibut (Hippoglossus hippoglossus) embryos. International Journal of Developmental Biology. 487-490.
  • Vis forfatter(e) (1992). Photo-regulation of the hatching process in halibut (Hippoglossus hippoglossus) eggs. Journal of Experimental Zoology. Part A: Ecological Genetics and Physiology (JEZ). 204-209.
  • Vis forfatter(e) (1992). Eggshell zona radiat-proteins: Extra-ovarian origin and induction by estradiol-17_b. International Journal of Developmental Biology. 247-254.
  • Vis forfatter(e) (1991). The hatching mechanism in Atlantic halibut (Hippoglossus hippoglossus). International Journal of Developmental Biology. 9-16.
  • Vis forfatter(e) (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. 9-16.
  • Vis forfatter(e) (1991). Oestradiol 17_b induces the major vitelline envelope proteins in both sexes in teleosts. Journal of Endocrinology. 229-236.
  • Vis forfatter(e) (1991). Oestradiol -17_b induces the major vitellin envelope proteins in both sexes in teleosts. Journal of Endocrinology. 229-236.
  • Vis forfatter(e) (1991). Morphogenesis of the hatching gland of Atlantic halibut (Hippoglossus hippoglossus). Roux's Archives of Developmental Biology. 180-187.
  • Vis forfatter(e) (1991). Morphogenesis of the hatching gland of Atlantic halibut (Hippoglossus hippoglossus). Roux's Archives of Developmental Biology. 180-187.
  • Vis forfatter(e) (1990). Bakterier på kveiteegg er en viktig årsak til dødelighet. Norsk Fiskeoppdrett. 32-33.
Rapport
  • Vis forfatter(e) (2007). Biology Education at University of Bergen Part I. A Background Document. .
  • Vis forfatter(e) (1998). Teori- og eksperimentbasert studie av rekruttering hos marin fisk. Sluttrapport for del I av Strategisk Program. .
Vitenskapelig foredrag
  • Vis forfatter(e) (2023). Effekt av lys på appetittkontroll under startfôring hos Atlantisk laks.
  • Vis forfatter(e) (2022). TOPOLOGY OF THE CENTRAL MELANOCORTIN NEUROPEPTIDES IN THE ATLANTIC SALMON PARR BRAIN.
  • Vis forfatter(e) (2022). Photoreception and transcriptome response to light during early development of Atlantic salmon (Salmon salar).
  • Vis forfatter(e) (2020). The effect of light environment on transcriptome and early development in Atlantic salmon.
  • Vis forfatter(e) (2019). Genomic approach to identify nonvisual photoreceptors in Atlantic salmon and effects of light environment on early development.
  • Vis forfatter(e) (2018). The effect of narrow banded LED light on development and growth performance.
  • Vis forfatter(e) (2014). EXPLORING PHYSIOLOGICAL FUNCTIONS OF THE PLEIOTROPHIC MELANOCORTIN ALPHA-MSH IN ATLANTIC SALMON.
  • Vis forfatter(e) (2002). Visual and non-visual reception in marine fish larvae.
  • Vis forfatter(e) (2002). Topographic specialisation of photoreceptor cells within retina of marine fish larvae.
  • Vis forfatter(e) (2002). The developing visual system and metamorphosis in flatfish.
  • Vis forfatter(e) (1993). The development of the halibut eye.
Populærvitenskapelig artikkel
  • Vis forfatter(e) (2015). Utvikling av osmoreguleringssystemet hos torskelarver startfôret på rotatorier eller naturlig zooplankton. Norsk Fiskeoppdrett. 36-38.
Doktorgradsavhandling
  • Vis forfatter(e) (2016). Visual photoreception in Atlantic cod (Gadus morhua) – Genomic restrictions, neurogenesis and life history transformation.
  • Vis forfatter(e) (2005). Trypsin and trypsin-like peptidases from Lepeophtheirus salmonis. Functional implications from molecular studies.
  • Vis forfatter(e) (1992). Biology of hatching : mechanism and control of hatching in eggs of halibut (Hippoglossus hippoglossus).
Poster
  • Vis forfatter(e) (2016). The effect of narrow banded LED light on development and growth performance.
  • Vis forfatter(e) (2004). Early expression of VA opsin in Atlantic halibut.
  • Vis forfatter(e) (2002). Molecular cloning and characterisation of ultraviolet-sensitive opsin promoter from turbot.
  • Vis forfatter(e) (2002). A dual non-visual photoreception system consisting of two melanopsins found in teleosts.
  • Vis forfatter(e) (2001). Differentiation of serotonergic circuits in the brain of the turbot (Psetta maxima).
  • Vis forfatter(e) (2001). A novel nonvisual pigment gene cloned from teleost retina.

Se fullstendig oversikt over publikasjoner i 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

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