Browsing Brage NMBU by Author "Mayer, Ian"
Now showing items 1-16 of 16
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An Atlantic cod (Gadus morhua L.) pituitary model system for reproductive and reprotoxic testing in vitro
von Krogh, Kristine (PhD Thesis;2021:14, Doctoral thesis, 2021)Due to factors such as overfishing, climate changes and pollution, most fish stocks are in decline. This is also the case for the commercially important marine species, Atlantic cod (Gadus morhua). As a result, the last ... -
Contrasting associations between breeding coloration and parasitism of male Arctic charr relate to parasite species and life cycle stage
Johansen, Ida Beitnes; Henriksen, Eirik Haugstvedt; Shaw, Jenny Carolyn; Mayer, Ian; Amundsen, Per-Arne; Øverli, Øyvind (Journal article; Peer reviewed, 2019)Conspicuous carotenoid ornamentation is considered a signal of individual “quality” and one of the most intensely studied traits found to co-vary with parasitism. Since it has been suggested that only “high quality” ... -
Data on Western blot and ELISA analysis of medaka (Oryzias latipes) follicle-stimulating hormone (Fsh) and luteinizing hormone (Lh) using recombinant proteins expressed with Pichia pastoris
Burow, Susann; Fontaine, Romain; von Krogh, Kristine; Mayer, Ian; Nourizadeh-Lillabadi, Rasoul; Hollander-Cohen, Lian; Cohen, Yaron; Shpilman, Michal; Levavi-Sivan, Berta; Weltzien, Finn-Arne (Journal article; Peer reviewed, 2019)The gonadotropins follicle-stimulating hormone (Fsh) and luteinizing hormone (Lh) play essential roles in vertebrate reproduction. This article presents data on molecular weight validation of recombinant medaka (Oryzias ... -
Dietary l-tryptophan leaves a lasting impression on the brain and the stress response
Höglund, Erik; Øverli, Øyvind; Andersson, Madelene Åberg; Silva, Patricia; Laursen, Danielle Caroline; Moltesen, Maria M; Krogdahl, Åshild; Schjolden, Joachim; Winberg, Svante; Vindas, Marco Antonio; Mayer, Ian; Hillestad, Marie (Journal article; Peer reviewed, 2017) -
Effect of short time temperature alteration on two key reproduction hormone levels of Nile tilapia (Oreochromis niloticus)
Sultana, Nowshim (Master thesis, 2020)This study investigates the effects of rapid and short temperature change on the levels of the hormones testosterone and estradiol-17β and the subsequent effect on egg maturation in Nile tilapia (Oreochromis niloticus). ... -
Effects of recreational angling and air exposure on the physiological status and reflex impairment of European grayling (Thymallus thymallus)
Lennox, Robert J.; Mayer, Ian; Havn, Torgeir Børresen; Johansen, Martin R.; Whoriskey, Kim; Cooke, Steven J.; Thorstad, Eva Bonsak; Uglem, Ingebrigt (Journal article; Peer reviewed, 2016)European grayling (Thymallus thymallus) is a popular recreational fish that may be lifted out of the water to facilitate hook removal or for admiration. To evaluate the effects of air exposure and angling-induced exhaustive ... -
Effects of the hatchery environment on neurobiology and behaviour in Atlantic salmon : implications for stocking
Mes, Daan (PhD Thesis;2018:80, Doctoral thesis, 2018)The Atlantic salmon (Salmo salar) is an iconic fish species with a widespread historic abundance, but recent decades have witnessed a dramatic decline in wild stocks due to a variety of anthropogenic factors, especially ... -
Establishment of specific enzyme-linked immunosorbent assay (ELISA) for measuring Fsh and Lh levels in medaka (Oryzias latipes), using recombinant gonadotropins
Burow, Susann; Fontaine, Romain David; von Krogh, Kristine; Mayer, Ian; Nourizadeh-Lillabadi, Rasoul; Hollander-Cohen, Lian; Cohen, Yaron; Shpilman, Michal; Levavi-Sivan, Berta; Weltzien, Finn-Arne (Journal article; Peer reviewed, 2019)The paucity of information on understanding the regulatory mechanisms that are involved in the control of piscine Fsh and Lh synthesis, secretion, and function, prompted the present work. Part of the problem is related to ... -
Gamma irradiation during gametogenesis in young adult zebrafish causes persistent genotoxicity and adverse reproductive effects
Hurem, Selma; Gomes, Tania; Brede, Dag Anders; Mayer, Ian; Lobert, Viola; Mutoloki, Stephen; Gutzkow, Kristine Bjerve; Teien, Hans-Christian; Oughton, Deborah Helen; Alestrøm, Peter; Lyche, Jan Ludvig (Journal article; Peer reviewed, 2018)The biological effects of gamma radiation may exert damage beyond that of the individual through its deleterious effects on reproductive function. Impaired reproductive performance can result in reduced population size ... -
Melatonin receptors in Atlantic salmon stimulate cAMP levels in heterologous cell lines and show season‐dependent daily variations in pituitary expression levels
Ciani, Elia; Fontaine, Romain; Maugars, Gersende Marie Aimee; Naama, Mizrahi; Mayer, Ian; Levavi-Sivan, Berta; Weltzien, Finn-Arne (Peer reviewed; Journal article, 2019) -
Neurobiology of wild and hatchery-reared Atlantic salmon: How nurture drives neuroplasticity
Mes, Daan; von Krogh, Kristine; Gorissen, Marnix; Mayer, Ian; Vindas, Marco (Journal article; Peer reviewed, 2018) -
Neuroendocrine indicators of allostatic load reveal the impact of environmental acidification in fish
Höglund, Erik; Korzan, Wayne; Åtland, Åse; Haraldstad, Tormod; Høgberget, Rolf; Mayer, Ian; Øverli, Øyvind (Peer reviewed; Journal article, 2020)When mobilized from surrounding soils and binding to gills at moderately low pH, aluminum (Al) cations can adversely affect fish populations. Furthermore, acidification may lead to allostatic overload, a situation in which ... -
Size Dependent Male Reproductive Tactic in the Two-Spotted Goby (Gobiusculus flavescens)
Utne-Palm, Anne Christine; Eduard, Kjartan; Jensen, Knut Helge; Mayer, Ian; Jakobsen, Per Johan (Journal article; Peer reviewed, 2015) -
Stunting : a physiological and molecular characterization of Atlantic salmon (Salmo salar) with reduced growth in the sea cages
Mahat, Sudip (Master thesis, 2021)Atlantic salmon (Salmon salar) has become the dominating fish species in Norwegian aquaculture industry. Having an anadromous life cycle, salmon spend the first part of their lifecycle in freshwater, then migrates to the ... -
Sub-lethal UV radiation during early life stages alters the behaviour, heart rate and oxidative stress parameters in zebrafish (Danio rerio)
Hurem, Selma; Fraser, Thomas WK; Gomes, Tania; Mayer, Ian; Christensen, Terje (Journal article; Peer reviewed, 2018)Environmental UV radiation in sufficient doses, as a possible consequence of climate change, is potent enough to affect living organisms with different outcomes, depending on the exposure life stage. The aim of this project ... -
Swimming exercise enhances brain plasticity in fish
Mes, Daan; Palstra, Arjan P.; Henkel, Christiaan; Mayer, Ian; Vindas, Marco (Peer reviewed; Journal article, 2020)It is well-established that sustained exercise training can enhance brain plasticity and boost cognitive performance in mammals, but this phenomenon has not received much attention in fish. The aim of this study was to ...