Institutt for biologi
Recent Submissions
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Population dynamics and resting egg production in Daphnia: Interactive effects of mercury, population density and temperature
(Peer reviewed; Journal article, 2021)Toxicity studies on freshwater organisms are commonly conducted by quantifying effects on asexual (clonal) reproductive rates in Daphnia, whereas studies of effects on sexual reproductive rates remain relatively rare. ... -
A review on contaminants of emerging concern in European raptors (2002−2020)
(Peer reviewed; Journal article, 2021)Raptors (birds of prey and owls) have been widely used as suitable bioindicators of environmental pollution. They occupy the highest trophic positions in their food chains and are documented to bioaccumulate high concentrations ... -
An integrated proteomic and transcriptomic analysis reveals the venom complexity of the bullet ant Paraponera clavata.
(Peer reviewed; Journal article, 2020)A critical hurdle in ant venom proteomic investigations is the lack of databases to comprehensively and specifically identify the sequence and function of venom proteins and peptides. To resolve this, we used venom gland ... -
Fatty acid composition of the postlarval daubed shanny (Leptoclinus maculatus) during the polar night
(Peer reviewed; Journal article, 2020)Recent discoveries of high levels of biological activity in the Arctic marine ecosystems during the polar night raise questions regarding the ecophysiology of the pelagic postlarval daubed shanny Leptoclinus maculatus. Of ... -
Advancing Ocean Observation with an AI-driven Mobile Robotic Explorer
(Journal article; Peer reviewed, 2020)Rapid assessment and enhanced knowledge of plankton communities and their structure in the productive upper water column is of crucial importance to understand the impact of the changing climate on upper ocean processes. ... -
Vegetation response to climate warming across the forest–tundra ecotone: species-dependent upward movement
(Peer reviewed; Journal article, 2020)Questions Rising temperatures are predicted to cause upward shifts and reorganisation of mountain vegetation. This study analyses how field layer vegetation across the forest–tundra ecotone has responded over a 22‐year ... -
Quantitative transcriptomics, and lipidomics in evaluating ovarian developmental effects in Atlantic cod (Gadus morhua) caged at a capped marine waste disposal site
(Peer reviewed; Journal article, 2020)In the present study, a previously capped waste disposal site at Kollevåg (Norway) was selected to study the effects of contaminant leakage on biomarkers associated with Atlantic cod (Gadus morhua) reproductive endocrinology ... -
The effect of mild whole-body cold stress on isometric force control during hand grip and key pinch tasks
(Peer reviewed; Journal article, 2020)Prolonged exposure to cold can impair manual performance, which in turn can affect work task performance. We investigated whether mild whole-body cold stress would affect isometric force control during submaximal hand grip ... -
Bekjemping av kvitaks i eldre frøeng av rødsvingel, engrapp og engkvein
(Chapter; Others, 2020) -
Light in the Polar Night
(Chapter, 2020)How much light isa vailable for biological processes during Polar Night? This question appears simple enough. But the reality is that conventional light sen- sors for measuring visible light (~350 to ~700 nm) have not been ... -
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 ... -
Combined effects of environmental variation and pollution on zooplankton life history and population dynamics
(Doctoral theses at NTNU;2021:49, Doctoral thesis, 2021)Toxicity studies on aquatic organisms are commonly conducted under highly standardized conditions that exclude interactions with environmental factors. However, aquatic organisms such as Daphnia regularly experience ... -
Eat or sleep: Availability of winter prey explains mid-winter and spring activity in an Arctic Calanus population
(Peer reviewed; Journal article, 2020)Copepods of the genus Calanus have adapted to high levels of seasonality in prey availability by entering a period of hibernation during winter known as diapause, but repeated observations of active Calanus spp. have been ... -
Perfluoroalkyl substances (PFASs) in white whales (Delphinapterus leucas) from Svalbard – A comparison of concentrations in plasma sampled 15 years apart
(Peer reviewed; Journal article, 2020)The objective of the present study was to investigate recent concentrations of perfluoroalkyl substances (PFASs) in white whales (Delphinapterus leucas) from Svalbard and compare them to concentrations found in white whales ... -
Experiment design and bacterial abundance control extracellular H2O2 concentrations during four series of mesocosm experiments
(Peer reviewed; Journal article, 2020)The extracellular concentration of H2O2 in surface aquatic environments is controlled by a balance between photochemical production and the microbial synthesis of catalase and peroxidase enzymes to remove H2O2 from solution. ... -
Phytoplankton community succession and dynamics using optical approaches
(Peer reviewed; Journal article, 2020)The phytoplankton in coastal regions are responding to constant environmental changes, thus the use of proxies derived from in situ frequent time-series observations and validated from traditional microscopic or pigment ... -
Development of a bio-optical model for the Barents Sea to quantitatively link glider and satellite observations: A bio-optical model for the Barents Sea
(Peer reviewed; Journal article, 2020)A bio-optical model for the Barents Sea is determined from a set of in situ observations of inherent optical properties (IOPs) and associated biogeochemical analyses. The bio-optical model provides a pathway to convert ... -
Measuring Complex Morphological Traits with 3D Photogrammetry: A Case Study with Deer Antlers
(Peer reviewed; Journal article, 2020)The increasing availability of 3D-imaging technology provides new opportunities for measuring morphology. Photogrammetry enables easy 3D-data acquisition compared to conventional methods and here we assess its accuracy for ... -
Causes and consequences of body growth variation in hunted wild boar populations
(Doctoral theses at NTNU;2021:41, Doctoral thesis, 2021)The life of an organism can be simply described as its survival, growth, reproduction, and death. These life-history traits are influenced by both natural environmental variation as well as human activity (i.e. global ... -
Paper product production identified as the main source of per- and polyfluoroalkyl substances (PFAS) in a Norwegian lake: Source and historic emission tracking
(Peer reviewed; Journal article, 2020)The entirety of the sediment bed in lake Tyrifjorden, Norway, is contaminated by per- and polyfluoroalkyl substances (PFAS). A factory producing paper products and a fire station were investigated as possible sources. Fire ...
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