Search Results - "Tveiten, Helge"

Gene Expression and Phenotypic Assessment of Egg Quality across Developmental Stages of Atlantic Cod throughout the Spawning Season by Fernández Míguez, María, Presa, Pablo, Puvanendran, Velmurugu, Tveiten, Helge, Hansen, Øyvind J, Pérez, Montse

“…Egg quality in fishes is commonly determined by fertilisation success and cleavage patterns as a phenotypic outcome of underlying regulatory mechanisms…”
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Early Developmental Stress Affects Subsequent Gene Expression Response to an Acute Stress in Atlantic Salmon: An Approach for Creating Robust Fish for Aquaculture? by Robinson, Nicholas A, Johnsen, Hanne, Moghadam, Hooman, Andersen, Øivind, Tveiten, Helge

“…Stress during early life has potential to program and alter the response to stressful events and metabolism in later life. Repeated short exposure of Atlantic…”
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Impacts of Early Life Stress on the Methylome and Transcriptome of Atlantic Salmon by Moghadam, Hooman K., Johnsen, Hanne, Robinson, Nicholas, Andersen, Øivind, H. Jørgensen, Even, Johnsen, Helge K., Bæhr, Vegar J., Tveiten, Helge

“…Exposure to environmental stressors during early-life stages can change the rate and timing of various developmental processes. Epigenetic marks affecting…”
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Low Oxygen Stress During Early Development Influences Regulation of Hypoxia-Response Genes in Farmed Atlantic Salmon ( Salmo salar ) by Kelly, Tara, Johnsen, Hanne, Burgerhout, Erik, Tveiten, Helge, Thesslund, Tina, Andersen, Øivind, Robinson, Nicholas

“…Survival and growth of developing salmonids are negatively affected by low oxygen levels within gravel nests in natural streams, and hypoxic stress is often…”
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Knockdown of the germ cell factor Dead end induces multiple transcriptional changes in Atlantic cod (Gadus morhua) hatchlings by Škugor, Adrijana, Tveiten, Helge, Krasnov, Aleksei, Andersen, Øivind

“…The RNA binding protein Dead end (DnD) is essential for maintaining viable germ cells in vertebrates and silencing of the gene has been demonstrated to cause…”
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Maternal transfer and transcriptional onset of immune genes during ontogenesis in Atlantic cod by Seppola, Marit, Johnsen, Hanne, Mennen, Saskia, Myrnes, Bjørnar, Tveiten, Helge

“…The immune system in teleosts is not completely developed during embryonic and larval stages and immune competence is assumed to be restricted. This study is…”
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Ultrasonic imaging as a means of monitoring gonadal development in lumpfish (Cyclopterus lumpus) by Mlingi, Frank Thomas, Puvanendran, Velmurugu, Burgerhout, Erik, Tveiten, Helge, Tomkiewicz, Jonna, Kjørsvik, Elin, Mommens, Maren

“…The commercial farming of juvenile lumpfish requires monitoring of gonadal development to achieve synchronized production. Conventional methods such as…”
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Cold seawater induces early sexual developmental stages in the BPG axis of European eel males by Rozenfeld, Christoffer, García-Carpintero, Víctor, Pérez, Luz, Gallego, Victor, Herranz-Jusdado, Juan Germán, Tveiten, Helge, Johnsen, Helge K, Fontaine, Romain, Weltzien, Finn-Arne, Cañizares, Joaquín, Asturiano, Juan F, Peñaranda, David S

“…The impossibility of closing the life cycle of the European eel (Anguilla anguilla) in captivity troubles the future of this critically endangered species. In…”
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Effect of the probiotic Lactobacillus rhamnosus on the expression of genes involved in European eel spermatogenesis by Vílchez, M. Carmen, Santangeli, Stefania, Maradonna, Francesca, Gioacchini, Giorgia, Verdenelli, Cristina, Gallego, Victor, Peñaranda, David S., Tveiten, Helge, Pérez, Luz, Carnevali, Oliana, Asturiano, Juan F.

“…Positive effects of probiotics on fish reproduction have been reported in several species. In the present study, 40 male European eels were weekly treated with…”
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Rapid adjustments of sperm characteristics in relation to social status by Rudolfsen, G, Figenschou, L, Folstad, I, Tveiten, H, Figenschou, M

“…Salvelinus alpinus…”
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Development of Atlantic Salmon (Salmo salar L.) Under Hypoxic Conditions Induced Sustained Changes in Expression of Immune Genes and Reduced Resistance to Moritella viscosa by Krasnov, Aleksei, Burgerhout, Erik, Johnsen, Hanne, Tveiten, Helge, Bakke, Anne F., Lund, Hege, Afanasyev, Sergey, Rebl, Alexander, Johansen, Lill-Heidi

“…Atlantic salmon is characterized with high sensitivity to low dissolved oxygen (DO) levels. Hypoxia can affect diverse biological processes with consequences…”
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Effects of photoperiod on sex steroids and gonad maturation in Arctic charr by Frantzen, Marianne, Arnesen, Arne M., Damsgård, Børge, Tveiten, Helge, Johnsen, Helge K.

“…Four groups of Arctic charr (age 3+), previously exposed to natural photoperiod, were subjected to different photoperiod regimes from February 20: Simulated…”
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Reproductive performance of lumpfish by Mlingi, Frank Thomas, Burgerhout, Erik, Mommens, Maren, Tveiten, Helge, Tomkiewicz, Jonna, Kjørsvik, Elin, Puvanendran, Velmurugu

“…A successful control of sexual maturation is crucial for year-round production of lumpfish juveniles destined as cleaner fish in Atlantic salmon aquaculture…”
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Effects of chilled storage and cryopreservation of sperm, and sperm to egg ratio on fertilization success in lumpfish (Cyclopterus lumpus) by Lein, Ingrid, de Vries, Adriana Neeltje, Tveiten, Helge, Refstie, Terje, Gjerde, Bjarne

“…Lumpfish males usually release small amounts of milt and are therefore often sacrificed for surgical harvesting of gonads. To optimize the utilization of sperm…”
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Reproductive performance of lumpfish (Cyclopterus lumpus, L. 1758) females: Effects of integrated photoperiod and temperature manipulations on sexual maturation and spawning by Mlingi, Frank Thomas, Burgerhout, Erik, Mommens, Maren, Tveiten, Helge, Tomkiewicz, Jonna, Kjørsvik, Elin, Puvanendran, Velmurugu

“…A successful control of sexual maturation is crucial for year-round production of lumpfish juveniles destined as cleaner fish in Atlantic salmon aquaculture…”
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Gene Expression and Phenotypic Assessment of Egg Quality across Developmental Stages of Atlantic Cod throughout the Spawning Season by Fernandez Miguez, Maria, Presa, Pablo, Puvanendran, Velmurugu, Tveiten, Helge, Hansen, Øyvind J, Pérez, Montse

“…Egg quality in fishes is commonly determined by fertilisation success and cleavage patterns as a phenotypic outcome of underlying regulatory mechanisms…”
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Sex steroid dynamics and mRNA transcript profiles of growth- and development-related genes during embryogenesis following induced follicular maturation in European eel by Kottmann, Johanna S., Tveiten, Helge, Miest, Joanna J., Tomkiewicz, Jonna

“…•Unfertilized eggs reflected maternal blood plasma steroid concentrations.•Maternally derived DHP and E2 hampered developmental competence of European…”
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Optimizing intensive culture protocols for Atlantic cod (Gadus morhua) larvae by Puvanendran, Velmurugu, Swain, Trilochan, Tveiten, Helge, Hansen, Øyvind J., Mortensen, Atle

“…Larval cod require live prey as food, and prey concentration (PC) and feeding frequency (FF) often affect their growth and survival. Apart from this, water…”
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Multiplicity of Buc copies in Atlantic salmon contrasts with loss of the germ cell determinant in primates, rodents and axolotl by Škugor, Adrijana, Tveiten, Helge, Johnsen, Hanne, Andersen, Øivind

“…The primordial germ cells (PGCs) giving rise to gametes are determined by two different mechanisms in vertebrates. While the germ cell fate in mammals and…”
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Impact of germ cell ablation on the activation of the brain–pituitary–gonadal axis in precocious Atlantic salmon (Salmo salar L.) males by Tveiten, Helge, Karlsen, Kristian, Thesslund, Tina, Johansson, Gunhild S., Thiyagarajan, Dhivya B., Andersen, Øivind

“…The germ cells are essential for sexual reproduction by giving rise to the gametes, but the importance of germ cells for gonadal somatic functions varies among…”
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