Blar i Institutt for biologi på tittel
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Exposure and effects of legacy and emerging organic pollutants in developing birds: laboratory and field studies
(Doctoral theses at NTNU;2019:244, Doctoral thesis, 2019)The production and use of persistent organic pollutants (POPs), such as polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), and organochlorine pesticides (OCPs) has been strictly regulated. However, ... -
Exposure of juvenile turbot (Scophthalmus maximus) to AgNP-EE2 mixtures: Implications on contaminant bioavailability and plasma steroid hormone levels
(Journal article; Peer reviewed, 2017)Combined exposure to engineered nanoparticles (ENPs) and anthropogenic contaminants can lead to changes in bioavailability, uptake and thus effects of both groups of contaminants. In this study we investigated effects of ... -
Exposure of the Common Eider (Somateria mollissima) to toxic elements in relation to migration strategy and wintering area
(Master thesis, 2018)The Common Eider (Somateria mollissima) is a long-lived sea duck with a Holarctic distribution. Eiders within breeding populations have a predictable migration strategy, shown by capture-recapture research using geolocation ... -
Exposure to elevated carbon dioxide does not impair short‐term swimming behaviour or shelter‐seeking in a predatory coral‐reef fish
(Journal article; Peer reviewed, 2018)Adult bluespotted rockcod Cephalopholis cyanostigma, a coral‐reef grouper, were acclimated to either ambient (mean ± s.d. 406 ± 21 μatm; 1 atmos = 101325 Pa) or high pCO2 (945 ± 116 μatm) conditions in a laboratory for 8–9 ... -
Exposure to low environmental copper concentrations does not affect survival and development in Atlantic cod (Gadus morhua) early life stages
(Peer reviewed; Journal article, 2021)In this study we investigated potential impacts of Cu exposure at low, environmentally relevant, concentrations on early live stages of Atlantic cod (Gadus morhua). Cod embryos and larvae were exposed to 0.5 μg/L (low), ... -
Exposure to oxychlordane is associated with shorter telomeres in arctic breeding kittiwakes
(Journal article; Peer reviewed, 2016)Telomeres are DNA-protein complexes located at the end of chromosomes, which play an important role in maintaining the genomic integrity. Telomeres shorten at each cell division and previous studies have shown that telomere ... -
Exposure to Persistent Organic Pollutants Reduces Testosterone Concentrations and Affects Sperm Viability and Morphology during the Mating Peak Period in a Controlled Experiment on Farmed Arctic Foxes (Vulpes lagopus)
(Journal article; Peer reviewed, 2017)We investigated testosterone production and semen parameters in farmed Arctic foxes by dietary exposure to persistent organic pollutants (POPs) for 22 months. Eight male foxes were given a diet of POP-contaminated minke ... -
Expression of DNA repair genes in Arctic char (Salvelinus alpinus) from Bjørnøya
(Master thesis, 2019)Persistente organiske miljøgifter (POPs) har blitt detektert i relativt høye nivåer i arktiske miljøer, hvor de kan utvise toksisk effekt hos eksponerte organismer. Det har blitt funnet at Ellasjøen, lokalisert på Bjørnøya ... -
Expression of DNA repair genes in arctic char (Salvelinus alpinus) from Bjørnøya in the Norwegian Arctic
(Peer reviewed; Journal article, 2021)High levels of organochlorines (OCs) have been measured in arctic char (Salvelinus alpinus) from Lake Ellasjøen on Bjørnøya, Norway (74.30°N, 19.0°E). In a nearby lake, Laksvatn, the OC-levels in arctic char were low. A ... -
Expression of the Znt1 zinc transporter from the metal hyperaccumulator noccaea caerulescens confers enhanced zinc and cadmium tolerance and accumulation to arabidopsis thaliana
(Peer reviewed; Journal article, 2016)Prompt regulation of transition metal transporters is crucial for plant zinc homeostasis. NcZNT1 is one of such transporters, found in the metal hyperaccumulator Brassicaceae species Noccaea caerulescens. It is orthologous ... -
Expression profiles and initial RNAi experiments with tyrosine hydroxylase and tryptophan 2,3-dioxygenase encoding genes in the salmon louse (Lepeophtheirus salmonis)
(Master thesis, 2021)Lakselus er en ektoparasittisk copepode på laksefisk. Den fører til betydelige økonomiske tap i oppdrettsindustrien, samtidig som den representerer en velferdstrussel for oppdrettslaksefisker og en mulig trussel mot ville ... -
Extent and ecological importance of escape through spawning in sea-cages for Atlantic cod
(Journal article; Peer reviewed, 2012)The culture of certain fish species to sizes at which they can reproduce has led to the escape of fertilised eggs or ‘escape through spawning’. To investigate the extent and ecological importance of spawning in sea-cages ... -
Extra‐pair paternity and antiparasitic defence
(Peer reviewed; Journal article, 2020)Background Extra-pair paternity (EPP) in birds provides benefits in terms of more offspring, and characteristics for maintenance of this behaviour have been the subject of investigation. Microorganisms are known to be ... -
Extreme events, trophic chain reactions, and shifts in phenotypic selection
(Peer reviewed; Journal article, 2023)Demographic consequences of rapid environmental change and extreme climatic events (ECEs) can cascade across trophic levels with evolutionary implications that have rarely been explored. Here, we show how an ECE in high ... -
Extreme Frost Tolerance in Boreal Conifers
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:132, Doctoral thesis, 2009) -
Extreme Levels of Ocean Acidification Restructure the Plankton Community and Biogeochemistry of a Temperate Coastal Ecosystem: A Mesocosm Study
(Peer reviewed; Journal article, 2021)The oceans’ uptake of anthropogenic carbon dioxide (CO2) decreases seawater pH and alters the inorganic carbon speciation – summarized in the term ocean acidification (OA). Already today, coastal regions experience episodic ... -
Extreme low temperature tolerance in woody plants
(Journal article; Peer reviewed, 2015)Woody plants in boreal to arctic environments and high mountains survive prolonged exposure to temperatures below -40°C and minimum temperatures below -60°C, and laboratory tests show that many of these species can also ... -
Extreme original data yield extreme decline effects
(Peer reviewed; Journal article, 2023)Our meta-analysis showing a dramatic decline effect in ocean acidification (OA) studies on fish behavior [1] was criticized and reanalyzed by Dr. Munday [2]. After applying changes to the dataset in a seemingly biased ... -
Eyes beneath the surface - using a miniROV to reveal the habitat and dietary choices of the European shag
(Master thesis, 2018)The population of sea birds in Norway is drastically declining, and numbers of breeding European shag (Phalacrocorax aristotelis) in the nesting colony in Runde, Norway, has declined with ~96% in the last 40 years. Mapping ... -
Eyes on the future: buffering increased costs of incubation by abandoning offspring
(Peer reviewed; Journal article, 2023)Life history theory states that the resources invested in current reproduction must be traded off against resources needed for survival and future reproduction. Long-lived organisms have a higher residual reproductive value ...