Browsing Institutt for biologi by Title
Now showing items 82-101 of 2594
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Age class composition and growth of Atlantic cod (Gadus morhua) in the shallow water zone of Kongsfjorden, Svalbard
(Peer reviewed; Journal article, 2022)Although Atlantic cod has been observed in Svalbard waters since the 1880s, knowledge about the presence in the Arctic shallow water zone is limited. The regular catch of juvenile Atlantic cod in Kongsfjorden since 2008 ... -
Age-dependent patterns of spatial autocorrelation in fish populations
(Journal article; Peer reviewed, 2021)The degree of spatial autocorrelation in population fluctuations increases with dispersal and geographical covariation in the environment, and decreases with strength of density dependence. Because the effects of these ... -
Algal colonization of young arctic sea ice in spring
(Journal article; Peer reviewed, 2018)The importance of newly formed sea ice in spring is likely to increase with formation of leads in a more dynamic Arctic icescape. We followed the ice algal species succession in young ice (≤ 0.27 m) in spring at high ... -
Algal oil gives control of long-chain omega-3 levels in full-cycle production of Atlantic salmon, without detriment to zootechnical performance and sensory characteristics
(Peer reviewed; Journal article, 2023)The levels of eicosapentaenoic (EPA) and docosahexaenoic (DHA) in salmon fillets have decreased because of the progressive replacement of fish oil (FO). This study contributes to enabling the sustainable growth of aquaculture ... -
Alien plant species in Svalbard
(Master thesis, 2012)Increased introductions combined with favorable growing conditions may enhance the presence and increase the success of alien plant species in High Arctic settlements. With global warming, the presence and success of alien ... -
All-sky camera system providing high temporal resolution annual time series of irradiance in the arctic
(Journal article; Peer reviewed, 2021)The ArcLight observatory provides hourly continuous time series of light regime data (intensity, spectral composition, and photoperiod) from the Arctic, Svalbard at 79° N. Until now, no complete annual time series of ... -
Allelic Variation at the Rht8 Locus in a 19th Century Wheat Collection
(Journal article; Peer reviewed, 2012)Wheat breeding during the 20th century has put large efforts into reducing straw length and increasing harvest index. In the 1920s an allele of Rht8 with dwarfing effects, found in the Japanese cultivar “Akakomugi,” was ... -
Alleviation of C⋅C Mismatches in DNA by the Escherichia coli Fpg Protein
(Peer reviewed; Journal article, 2021)DNA polymerase III mis-insertion may, where not corrected by its 3′→ 5′ exonuclease or the mismatch repair (MMR) function, result in all possible non-cognate base pairs in DNA generating base substitutions. The most ... -
Allometric growth and development of organs in ballan wrasse (Labrus bergylta Ascanius, 1767) larvae in relation to different live prey diets and growth rates
(Journal article; Peer reviewed, 2016)Small fish larvae grow allometrically, but little is known about how this growth pattern may be affected by different growth rates and early diet quality. The present study investigates how different growth rates, caused ... -
Allyl isothiocyanate affects the cell cycle of Arabidopsis thaliana
(Journal article; Peer reviewed, 2015-05-19)Isothiocyanates (ITCs) are degradation products of glucosinolates present in members of the Brassicaceae family acting as herbivore repellents and antimicrobial compounds. Recent results indicate that allyl ITC (AITC) has ... -
Allyl isothiocyanate depletes glutathione and upregulates expression of glutathione S-transferases in Arabidopsis thaliana
(Journal article; Peer reviewed, 2015-04-22)Allyl isothiocyanate (AITC) is a phytochemical associated with plant defense in plants from the Brassicaceae family. AITC has long been recognized as a countermeasure against external threats, but recent reports suggest ... -
Allyl isothiocyanate induces a shift in the cell cycle distribution of Arabidopsis thaliana
(Master thesis, 2013)Isothiocyanates (ITCs) are degradation products of glucosinolates present in members of the Brassicaceae familiy acting e.g. as herbivore repellents and antimicrobial compounds. Recent results indicate that allyl ITC (AITC) ... -
Allyl isothiocyanate inhibits actin mediated intracellular transport in Arabidopsis thaliana.
(Journal article; Peer reviewed, 2015-12-07)Volatile allyl isothiocyanate (AITC) derives from the biodegradation of the glucosinolate sinigrin and has been associated with growth inhibition in several plants, including the model plant Arabidopsis thaliana. However, ... -
Allyl-isothiocyanate treatment induces a complex transcriptional reprogramming including heat stress, oxidative stress and plant defence responses in Arabidopsis thaliana
(Journal article; Peer reviewed, 2016)Background Isothiocyanates (ITCs) are degradation products of the plant secondary metabolites glucosinolates (GSLs) and are known to affect human health as well as plant herbivores and pathogens. To investigate the processes ... -
Alteration of hepato-lipidomic homeostasis in A/J mice fed an environmentally relevant PFAS mixture
(Peer reviewed; Journal article, 2023)In the present study, we have investigated liver lipid homeostasis and corresponding changes in transcript and functional product levels in A/J mice exposed to environmental relevant concentration of per- and polyfluoroalkyl ... -
Alteration of neuro-dopamine and steroid hormone homeostasis in wild Bank voles in relation to tissue concentrations of PFAS at a Nordic skiing area
(Peer reviewed; Journal article, 2020)Perfluoroalkyl substances (PFAS) are contaminants that are applied in a wide range of consumer products, including ski products. The present study investigated the neuro-dopamine (DA) and cellular steroid hormone homeostasis ... -
Altering the Glucosinolate Profile of Arabidopsis thaliana: Characterization and Impact on Resistance Against Botrytis cinerea
(Master thesis, 2017)The glucosinolate-myrosinase system is a well-known part of the Brassicacea plant immunity. This family includes several important crop species as well as the model organism Arabidopsis thaliana, thus encouraging and ... -
Alternative measures of trait–niche relationships: A test on dispersal traits in saproxylic beetles
(Journal article; Peer reviewed, 2023)Functional trait approaches are common in ecology, but a lack of clear hypotheses on how traits relate to environmental gradients (i.e., trait–niche relationships) often makes uncovering mechanisms difficult. Furthermore, ... -
Alternative responses to rare selection events are differentially vulnerable to changes in the frequency, scope, and intensity of environmental extremes
(Journal article; Peer reviewed, 2019)Extreme weather events are becoming more frequent, severe, and/or widespread as a consequence of anthropogenic climate change. While the economic and ecological implications of these changes have received considerable ... -
Among-river pattern in relative abundance of two salmonid fishes reflects temperature-dependent competition
(Journal article; Peer reviewed, 2024)Temperature is a key driver in determining species distribution and abundance across climatic and geographical gradients. This occurs through direct physiological effects of temperature on performance, but may also result ...